Today's Message Index:
----------------------
1. 05:09 AM - Infinity grip switch driving S702 starter relay (Ralph E. Capen)
2. 05:32 AM - Re: Infinity grip switch driving S702 starter relay (Tcwtech)
3. 05:50 AM - Re: Infinity grip switch driving S702 starter relay (Ralph E. Capen)
4. 06:21 AM - Re: Infinity grip switch driving S702 starter relay (Linn Walters)
5. 06:40 AM - Re: Infinity grip switch driving S702 starter relay (Ralph E. Capen)
6. 06:54 AM - Re: Infinity grip switch driving S702 starter relay (dmaib@me.com)
7. 06:55 AM - Re: Infinity grip switch driving S702 starter relay (Carl Froehlich)
8. 07:16 AM - Re: Infinity grip switch driving S702 starter relay (Ralph E. Capen)
9. 07:17 AM - Re: Re: Infinity grip switch driving S702 starter relay (Ralph E. Capen)
10. 09:52 AM - Re: Re: Infinity grip switch driving S702 starter relay (Linn Walters)
11. 11:16 AM - Re: Re: Infinity grip switch driving S702 starter relay (Tim Olson)
12. 11:34 AM - Re: Re: Infinity grip switch driving S702 starter relay (Ralph E. Capen)
13. 12:22 PM - Re: AeroElectric-List: Re: Re: Infinity grip switch driving S702 starter relay (Kelly McMullen)
14. 07:03 PM - Re: Infinity grip switch driving S702 starter relay (vanremog@aol.com)
Message 1
| INDEX | Back to Main INDEX |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Infinity grip switch driving S702 starter relay |
Anyone else using an Infinity grip switch to actuate a S702 starter relay?
According to the specs of the Infinity grip switches, the contacts are rated at
6Amp.
>From the B and C site, the S702 has a 2.5Ohm coil - so the math at 14volts works
out
to 5.6Amps...and that would be a max since the battery would provide less at cranking
time.
The numbers say it should be OK - I'm looking to find out if anyone is doing it
for
real - and how is it working for you?
Thanks,
Ralph Capen
Message 2
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Infinity grip switch driving S702 starter relay |
Ralph. I would recommend you look at our Smartstart module for doing this function
if you want to use the stick grip switch to drive the start contactor.
The switches used in the stick grip may be rated at 6 amps, but that would be
for a resistive load. The start contactor is an inductive load and has a significantly
different effect in switches than a pure resistor.
Additionally, our module has a built in one minute timer and an interlock feature,
making the stick grip starting concept safer and more useful.
All the info is at www.tcwtech.com
Bob Newman
TCW Technologies, LLC
610-928-3420
> On Mar 3, 2015, at 8:07 AM, Ralph E. Capen <recapen@earthlink.net> wrote:
>
>
>
> Anyone else using an Infinity grip switch to actuate a S702 starter relay?
>
> According to the specs of the Infinity grip switches, the contacts are rated
at 6Amp.
>> From the B and C site, the S702 has a 2.5Ohm coil - so the math at 14volts works
out
> to 5.6Amps...and that would be a max since the battery would provide less at
cranking
> time.
>
> The numbers say it should be OK - I'm looking to find out if anyone is doing
it for
> real - and how is it working for you?
>
> Thanks,
> Ralph Capen
>
>
>
>
>
>
Message 3
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Infinity grip switch driving S702 starter relay |
Interesting - I'll look in to this....
How many are out there interfacing the Infinity grip switch to the Starter relay?
Still want to hear if anyone is using my stated configuration though....
Thanks
-----Original Message-----
>From: Tcwtech <rnewman@tcwtech.com>
>Sent: Mar 3, 2015 8:30 AM
>To: "rv-list@matronics.com" <rv-list@matronics.com>
>Subject: Re: RV-List: Infinity grip switch driving S702 starter relay
>
>
>Ralph. I would recommend you look at our Smartstart module for doing this function
if you want to use the stick grip switch to drive the start contactor.
The switches used in the stick grip may be rated at 6 amps, but that would be
for a resistive load. The start contactor is an inductive load and has a significantly
different effect in switches than a pure resistor.
>Additionally, our module has a built in one minute timer and an interlock feature,
making the stick grip starting concept safer and more useful.
>
>All the info is at www.tcwtech.com
>
>
>Bob Newman
>TCW Technologies, LLC
>610-928-3420
>
>> On Mar 3, 2015, at 8:07 AM, Ralph E. Capen <recapen@earthlink.net> wrote:
>>
>>
>>
>> Anyone else using an Infinity grip switch to actuate a S702 starter relay?
>>
>> According to the specs of the Infinity grip switches, the contacts are rated
at 6Amp.
>>> From the B and C site, the S702 has a 2.5Ohm coil - so the math at 14volts
works out
>> to 5.6Amps...and that would be a max since the battery would provide less at
cranking
>> time.
>>
>> The numbers say it should be OK - I'm looking to find out if anyone is doing
it for
>> real - and how is it working for you?
>>
>> Thanks,
>> Ralph Capen
>>
>>
>>
>>
>>
>>
>
>
Message 4
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Infinity grip switch driving S702 starter relay |
Ralph, you may find some folks that are using the infinity switch direct
for the starter contactor but our fleet is relatively young. Problems
won't surface 'till down the road a ways. My start switch is is on the
key so I didn't have your same situation. However, it's far better to
wire in a relay now than later, IMHO.
My question is why put the starter on the grip anyway? You only use it
once each flight and typically don't need to have your hand on the grip
at that time. Plus, what keeps you from accidentally hitting that
switch while you're in the air???
Linn
On 3/3/2015 8:48 AM, Ralph E. Capen wrote:
>
>
> Interesting - I'll look in to this....
> How many are out there interfacing the Infinity grip switch to the Starter relay?
>
> Still want to hear if anyone is using my stated configuration though....
>
> Thanks
>
>
> -----Original Message-----
>> From: Tcwtech <rnewman@tcwtech.com>
>> Sent: Mar 3, 2015 8:30 AM
>> To: "rv-list@matronics.com" <rv-list@matronics.com>
>> Subject: Re: RV-List: Infinity grip switch driving S702 starter relay
>>
>>
>> Ralph. I would recommend you look at our Smartstart module for doing this function
if you want to use the stick grip switch to drive the start contactor.
The switches used in the stick grip may be rated at 6 amps, but that would
be for a resistive load. The start contactor is an inductive load and has a
significantly different effect in switches than a pure resistor.
>> Additionally, our module has a built in one minute timer and an interlock feature,
making the stick grip starting concept safer and more useful.
>>
>> All the info is at www.tcwtech.com
>>
>>
>> Bob Newman
>> TCW Technologies, LLC
>> 610-928-3420
>>
>>> On Mar 3, 2015, at 8:07 AM, Ralph E. Capen <recapen@earthlink.net> wrote:
>>>
>>>
>>>
>>> Anyone else using an Infinity grip switch to actuate a S702 starter relay?
>>>
>>> According to the specs of the Infinity grip switches, the contacts are rated
at 6Amp.
>>>> From the B and C site, the S702 has a 2.5Ohm coil - so the math at 14volts
works out
>>> to 5.6Amps...and that would be a max since the battery would provide less at
cranking
>>> time.
>>>
>>> The numbers say it should be OK - I'm looking to find out if anyone is doing
it for
>>> real - and how is it working for you?
>>>
>>> Thanks,
>>> Ralph Capen
>>>
>>>
>>>
>>>
>>>
>>>
>>
>>
>>
>>
>
>
Message 5
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Infinity grip switch driving S702 starter relay |
Linn,
Good points made!
I currently have it on a relay that the hand-grip activates with a safety interlock
switch - my line of thinking is to simplify by removing the relay and driving it
direct.
My initial line of thinking for putting it on the hand-grip was for an in-flight
restart -
which would require one hand on the stick while the other works throttle and mixture.
What I currently have works very well - but it is complex and I am trying to simplify...
Looking for evidence of the problem you alluded to.
Thanks,
Ralph
-----Original Message-----
>From: Linn Walters <flying-nut@cfl.rr.com>
>Sent: Mar 3, 2015 9:20 AM
>To: rv-list@matronics.com
>Subject: Re: RV-List: Infinity grip switch driving S702 starter relay
>
>
>Ralph, you may find some folks that are using the infinity switch direct
>for the starter contactor but our fleet is relatively young. Problems
>won't surface 'till down the road a ways. My start switch is is on the
>key so I didn't have your same situation. However, it's far better to
>wire in a relay now than later, IMHO.
>
>My question is why put the starter on the grip anyway? You only use it
>once each flight and typically don't need to have your hand on the grip
>at that time. Plus, what keeps you from accidentally hitting that
>switch while you're in the air???
>Linn
>
>On 3/3/2015 8:48 AM, Ralph E. Capen wrote:
>>
>>
>> Interesting - I'll look in to this....
>> How many are out there interfacing the Infinity grip switch to the Starter relay?
>>
>> Still want to hear if anyone is using my stated configuration though....
>>
>> Thanks
>>
>>
>>
>>
>> -----Original Message-----
>>> From: Tcwtech <rnewman@tcwtech.com>
>>> Sent: Mar 3, 2015 8:30 AM
>>> To: "rv-list@matronics.com" <rv-list@matronics.com>
>>> Subject: Re: RV-List: Infinity grip switch driving S702 starter relay
>>>
>>>
>>> Ralph. I would recommend you look at our Smartstart module for doing this
function if you want to use the stick grip switch to drive the start contactor.
The switches used in the stick grip may be rated at 6 amps, but that would
be for a resistive load. The start contactor is an inductive load and has
a significantly different effect in switches than a pure resistor.
>>> Additionally, our module has a built in one minute timer and an interlock feature,
making the stick grip starting concept safer and more useful.
>>>
>>> All the info is at www.tcwtech.com
>>>
>>>
>>> Bob Newman
>>> TCW Technologies, LLC
>>> 610-928-3420
>>>
>>>> On Mar 3, 2015, at 8:07 AM, Ralph E. Capen <recapen@earthlink.net> wrote:
>>>>
>>>>
>>>>
>>>> Anyone else using an Infinity grip switch to actuate a S702 starter relay?
>>>>
>>>> According to the specs of the Infinity grip switches, the contacts are rated
at 6Amp.
>>>>> From the B and C site, the S702 has a 2.5Ohm coil - so the math at 14volts
works out
>>>> to 5.6Amps...and that would be a max since the battery would provide less
at cranking
>>>> time.
>>>>
>>>> The numbers say it should be OK - I'm looking to find out if anyone is doing
it for
>>>> real - and how is it working for you?
>>>>
>>>> Thanks,
>>>> Ralph Capen
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>
>>>
>>>
>>>
>>
>>
>>
>>
>>
>>
>
>
Message 6
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Infinity grip switch driving S702 starter relay |
I agree with Linn and others concerning the need for a relay. I wish I had used
one of my Infinity Grip buttons for starting. I do want to hold the stick when
starting, and I find that for activating my start button, manipulating mixture
and throttle, and holding the stick, I am short one hand. (especially starting
when the engine is hot) In my case, the VP-200 would take care of the issue
of activating the starter when you don't want it activated. Otherwise, I would
use Bob's TcwTech start protection switch.
--------
David Maib
RV-10 #40559
New Smyrna Beach, FL
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=438936#438936
Message 7
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Infinity grip switch driving S702 starter relay |
Ralph,
On the RV-8A the first version had the bottom push button on the stick being
the start button, providing power to the starter solenoid. This button does
not have the capacity to operate the starter solenoid directly. I installed
a small 12VDC relay (100ma coil, ~$1.50 from Allied Electronics) in the
circuit such that the stick button operated the relay, the relay then
provided power to the starter solenoid.
But - this setup was quickly changed as twice during the first flights I
inadvertently bumped the stick start button while the engine was running. I
kept the relay set up and just added a small momentary pushbutton out of the
way at the top of the right side switch/breaker panel to use instead of the
stick button.
On the RV-10 I just used the standard 10amp panel pushbutton for engine
start to directly provide power to the starter solenoid.
Bottom line - recommend not using the stick buttons to operate the starter
solenoid.
Carl
-----Original Message-----
From: owner-rv-list-server@matronics.com
[mailto:owner-rv-list-server@matronics.com] On Behalf Of Ralph E. Capen
Sent: Tuesday, March 03, 2015 8:08 AM
Subject: RV-List: Infinity grip switch driving S702 starter relay
Anyone else using an Infinity grip switch to actuate a S702 starter relay?
According to the specs of the Infinity grip switches, the contacts are rated
at 6Amp.
>From the B and C site, the S702 has a 2.5Ohm coil - so the math at
>14volts works out
to 5.6Amps...and that would be a max since the battery would provide less at
cranking time.
The numbers say it should be OK - I'm looking to find out if anyone is doing
it for real - and how is it working for you?
Thanks,
Ralph Capen
Message 8
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Infinity grip switch driving S702 starter relay |
Carl,
Thanks for your input.
I have a secondary safety switch to prevent the accidental activation along
with the relay like you described currently installed.
My intent was to simplify by removing the relay. Sounds like my best bet
is to leave it as is! It works great for me.....
Ralph
-----Original Message-----
>From: Carl Froehlich <carl.froehlich@verizon.net>
>Sent: Mar 3, 2015 9:54 AM
>To: rv-list@matronics.com, aeroelectric-list@matronics.com
>Subject: RE: RV-List: Infinity grip switch driving S702 starter relay
>
>
>Ralph,
>
>On the RV-8A the first version had the bottom push button on the stick being
>the start button, providing power to the starter solenoid. This button does
>not have the capacity to operate the starter solenoid directly. I installed
>a small 12VDC relay (100ma coil, ~$1.50 from Allied Electronics) in the
>circuit such that the stick button operated the relay, the relay then
>provided power to the starter solenoid.
>
>But - this setup was quickly changed as twice during the first flights I
>inadvertently bumped the stick start button while the engine was running. I
>kept the relay set up and just added a small momentary pushbutton out of the
>way at the top of the right side switch/breaker panel to use instead of the
>stick button.
>
>On the RV-10 I just used the standard 10amp panel pushbutton for engine
>start to directly provide power to the starter solenoid.
>
>Bottom line - recommend not using the stick buttons to operate the starter
>solenoid.
>
>Carl
>
>-----Original Message-----
>From: owner-rv-list-server@matronics.com
>[mailto:owner-rv-list-server@matronics.com] On Behalf Of Ralph E. Capen
>Sent: Tuesday, March 03, 2015 8:08 AM
>To: aeroelectric-list@matronics.com; rv-list
>Subject: RV-List: Infinity grip switch driving S702 starter relay
>
>
>
>Anyone else using an Infinity grip switch to actuate a S702 starter relay?
>
>According to the specs of the Infinity grip switches, the contacts are rated
>at 6Amp.
>>From the B and C site, the S702 has a 2.5Ohm coil - so the math at
>>14volts works out
>to 5.6Amps...and that would be a max since the battery would provide less at
>cranking time.
>
>The numbers say it should be OK - I'm looking to find out if anyone is doing
>it for real - and how is it working for you?
>
>Thanks,
>Ralph Capen
>
>
Message 9
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Infinity grip switch driving S702 starter relay |
David,
Thanks for the info. I'll probably leave mine as is since the relay and safety
switch work well!
Ralph
-----Original Message-----
>From: "dmaib@me.com" <dmaib@me.com>
>Sent: Mar 3, 2015 9:53 AM
>To: rv-list@matronics.com
>Subject: RV-List: Re: Infinity grip switch driving S702 starter relay
>
>
>I agree with Linn and others concerning the need for a relay. I wish I had used
one of my Infinity Grip buttons for starting. I do want to hold the stick when
starting, and I find that for activating my start button, manipulating mixture
and throttle, and holding the stick, I am short one hand. (especially starting
when the engine is hot) In my case, the VP-200 would take care of the issue
of activating the starter when you don't want it activated. Otherwise, I would
use Bob's TcwTech start protection switch.
>
>--------
>David Maib
>RV-10 #40559
>New Smyrna Beach, FL
>
>
>Read this topic online here:
>
>http://forums.matronics.com/viewtopic.php?p=438936#438936
>
>
Message 10
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Infinity grip switch driving S702 starter relay |
Ah, it seems the answer is ...... "If it ain't broke, don't fix it!!!"
Linn ..... couldn't resist
do not archive
On 3/3/2015 10:16 AM, Ralph E. Capen wrote:
>
>
> David,
>
> Thanks for the info. I'll probably leave mine as is since the relay and safety
switch work well!
>
> Ralph
>
>
> -----Original Message-----
>> From: "dmaib@me.com" <dmaib@me.com>
>> Sent: Mar 3, 2015 9:53 AM
>> To: rv-list@matronics.com
>> Subject: RV-List: Re: Infinity grip switch driving S702 starter relay
>>
>>
>> I agree with Linn and others concerning the need for a relay. I wish I had used
one of my Infinity Grip buttons for starting. I do want to hold the stick
when starting, and I find that for activating my start button, manipulating mixture
and throttle, and holding the stick, I am short one hand. (especially starting
when the engine is hot) In my case, the VP-200 would take care of the issue
of activating the starter when you don't want it activated. Otherwise, I
would use Bob's TcwTech start protection switch.
>>
>> --------
>> David Maib
>> RV-10 #40559
>> New Smyrna Beach, FL
>>
>>
>>
>>
>> Read this topic online here:
>>
>> http://forums.matronics.com/viewtopic.php?p=438936#438936
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>
>
Message 11
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Infinity grip switch driving S702 starter relay |
This post since it was cross posted, may not have gotten
the same follow-up on all lists, but I'll add my reply
to another poster's comment on prop windmilling being
enough in-flight...
---
I know in my case I've done complete mixture cut-off tests
in the plane where I've stopped the engine completely,
and also flown it dry on tanks for testing, and the prop
keeps spinning so fast that you may even perceive that
the engine is still making power. You just feel the loss
of thrust. So unless you happen to pull the nose up and
near-stall the plane, I doubt the starter will ever need to
be cranked to re-start. For me, as soon as the fuel
supply was there again, it roared back to life.
Also, the start operation isn't *that* complicated.
I understand the want to have a hand on the stick
and one on the throttle/mixture, but my knees do a fine
job of holding the stick for a normal start.
Additionally, if the plane is in trim, I don't see
the worry about holding the stick with a hand
while doing that once-in-a-hundred-years in-flight
restart that you may do. The knees would do ok
there too, but in actuality, you're not going to be
manipulating the mixture and throttle much if you're
doing an in-flight start. It's not like you'll be
doing a hot-start procedure at 7,000'.
Tim
Message 12
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Infinity grip switch driving S702 starter relay |
Agreed!
-----Original Message-----
>From: Linn Walters <flying-nut@cfl.rr.com>
>Sent: Mar 3, 2015 12:51 PM
>To: rv-list@matronics.com
>Subject: Re: RV-List: Re: Infinity grip switch driving S702 starter relay
>
>
>Ah, it seems the answer is ...... "If it ain't broke, don't fix it!!!"
>
>Linn ..... couldn't resist
>do not archive
>
>On 3/3/2015 10:16 AM, Ralph E. Capen wrote:
>>
>>
>> David,
>>
>> Thanks for the info. I'll probably leave mine as is since the relay and safety
switch work well!
>>
>> Ralph
>>
>>
>>
>>
>> -----Original Message-----
>>> From: "dmaib@me.com" <dmaib@me.com>
>>> Sent: Mar 3, 2015 9:53 AM
>>> To: rv-list@matronics.com
>>> Subject: RV-List: Re: Infinity grip switch driving S702 starter relay
>>>
>>>
>>> I agree with Linn and others concerning the need for a relay. I wish I had
used one of my Infinity Grip buttons for starting. I do want to hold the stick
when starting, and I find that for activating my start button, manipulating mixture
and throttle, and holding the stick, I am short one hand. (especially starting
when the engine is hot) In my case, the VP-200 would take care of the
issue of activating the starter when you don't want it activated. Otherwise, I
would use Bob's TcwTech start protection switch.
>>>
>>> --------
>>> David Maib
>>> RV-10 #40559
>>> New Smyrna Beach, FL
>>>
>>>
>>>
>>>
>>> Read this topic online here:
>>>
>>> http://forums.matronics.com/viewtopic.php?p=438936#438936
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>
>>
>>
>>
>>
>>
>
>
Message 13
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Infinity grip switch driving |
S702 starter relay
I guess I am missing the need for any of this. In flight use of
starter?? Maybe if you had a full feathering prop, otherwise the prop is
your starter, just push the nose over. Need to hold stick while
starting? Unless you are facing into winds that approach rotation
speed, what does holding the stick accomplish? While some like switches
for mags.EI and a button for starting, the old twist to start ignition
switch does simply things a lot. Unless you have 3 hands, you are always
going to need one to activate starter and one on the throttle/mixture
knobs. I guess having button on stick lets you use one hand to holde
stick and activate starter with the other on throttle, but I still don't
see the need to hold the stick. It is the brakes that will hold the
plane from going anywhere. If wind is strong enough to need stick input,
you probably need wing walkers to keep the wing tips and wheels near the
ground.
On 3/3/2015 8:16 AM, Ralph E. Capen wrote:
> --> AeroElectric-List message posted by: "Ralph E. Capen" <recapen@earthlink.net>
>
>
> David,
>
> Thanks for the info. I'll probably leave mine as is since the relay and safety
switch work well!
>
> Ralph
>
>
> -----Original Message-----
>> From: "dmaib@me.com" <dmaib@me.com>
>> Sent: Mar 3, 2015 9:53 AM
>> To: rv-list@matronics.com
>> Subject: RV-List: Re: Infinity grip switch driving S702 starter relay
>>
>>
>> I agree with Linn and others concerning the need for a relay. I wish I had used
one of my Infinity Grip buttons for starting. I do want to hold the stick
when starting, and I find that for activating my start button, manipulating mixture
and throttle, and holding the stick, I am short one hand. (especially starting
when the engine is hot) In my case, the VP-200 would take care of the issue
of activating the starter when you don't want it activated. Otherwise, I
would use Bob's TcwTech start protection switch.
>>
>> --------
>> David Maib
>> RV-10 #40559
>> New Smyrna Beach, FL
>>
>>
>>
>>
>> Read this topic online here:
>>
>> http://forums.matronics.com/viewtopic.php?p=438936#438936
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>
>
Message 14
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Infinity grip switch driving S702 starter relay |
=0AIt may also be an AC rating. DC is significantly harde
r on contacts during switching. The combination of DC switc
hing and collapsing flux field from a large inductive would
be death fro the switch. In DC applications always ensure
that you have a back biased catch diode installed across an
inductive load or the back EMF can take out the switching
component in short order.=0A=0A-GV=0A =0A =0A-----Original Message--
---=0AFrom: Tcwtech <rnewman@tcwtech.com>=0ATo: rv-list <rv-list@matroni
cs.com>=0ASent: Tue, Mar 3, 2015 5:32 am=0ASubject: Re: RV-List:
Infinity grip switch driving S702 starter relay=0A=0A=0A--> RV-
List message posted by: Tcwtech <rnewman@tcwtech.com>=0A=0ARalph.
I would recommend you look at our Smartstart module for doin
g this =0Afunction if you want to use the stick grip switc
h to drive the start contactor. =0AThe switches used
in the stick grip may be rated at 6 amps, but that would
be =0Afor a resistive load. The start contactor is an
inductive load and has a =0Asignificantly different effect in
switches than a pure resistor. =0AAdditionally, our module
has a built in one minute timer and an interlock =0Afeature,
making the stick grip starting concept safer and more usefu
l. =0A=0AAll the info is at www.tcwtech.com =0A=0A=0ABob Newm
an=0ATCW Technologies, LLC=0A610-928-3420=0A=0A> On Mar 3, 2015, a
t 8:07 AM, Ralph E. Capen <recapen@earthlink.net> wrote:=0A> =0A
thlink.net>=0A> =0A> =0A> Anyone else using an Infinity grip s
witch to actuate a S702 starter relay?=0A> =0A> According to
the specs of the Infinity grip switches, the contacts are ra
ted =0Aat 6Amp.=0A>> From the B and C site, the S702 has
a 2.5Ohm coil - so the math at 14volts =0Aworks out=0A> to
5.6Amps...and that would be a max since the battery would
provide less at =0Acranking =0A> time.=0A> =0A> The numbers sa
y it should be OK - I'm looking to find out if anyone
is doing =0Ait for =0A> real - and how is it working for
you?=0A> =0A> Thanks,=0A> Ralph Capen=0A> =0A> =0A> =0A> =0A>
===========================
===========================
===========================
===========================
===========================
======================0A=0A=0A=0A=0A
=0A
Other Matronics Email List Services
These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.
-- Please support this service by making your Contribution today! --
|