<R91>

[RebAl]

<R91> Each motor, actuator, and compressor must be connected to one, and only one, speed controller or relay module.

This wording leads me to believe that you can not connect 2 spikes to a solenoid but you could connect 2 solenoids to a spike.

I believe their intent was to say:
Each speed controller and relay module must be connected to one, and only one motor, actuator, or compressor .

It makes a big difference.

[Otaku]

Or perhaps they’re actually telling you that you cannot use more than one speed controller.

But that’d be bupkis.

[dlavery]

@RebAl

<R91> Each motor, actuator, and compressor must be connected to one, and only one, speed controller or relay module.

This wording leads me to believe that you can not connect 2 spikes to a solenoid but you could connect 2 solenoids to a spike.

I believe their intent was to say:
Each speed controller and relay module must be connected to one, and only one motor, actuator, or compressor .

It makes a big difference.

Actually, it makes perfect sense the way it is. This way, motors/compressors cannot be connected straight to power sources - they must be connected to a speed controller or relay. And you cannot double up the speed controllers/relays to create parallel circuits to power the motor in an attempt to double the available amperage.

If it was the other way around, as suggested, then every speed controller would have to be connected to a motor. But motors would not have to be connected to speed controllers - which could lead to big problems.

-dave

[RebAl]

@dlavery

Actually, it makes perfect sense the way it is. This way, motors/compressors cannot be connected straight to power sources - they must be connected to a speed controller or relay. And you cannot double up the speed controllers/relays to create parallel circuits to power the motor in an attempt to double the available amperage.

If it was the other way around, as suggested, then every speed controller would have to be connected to a motor. But motors would not have to be connected to speed controllers - which could lead to big problems.

-dave

I see what your saying. So the intent of the rule was to make sure that each motor, solenoid, etc was connected to the appropriate control apparatus.
Specifically, I was thinking of using a single spike to drive two single action solenoids (such as the Festo) as shown in the attached picture. This is from the spike manual. However, a post on the Q&A forum disallows this type of usage, hence the confusion.

EDIT: It appears that the question I am referring to has been removed from the Q&A forum.

[eugenebrooks]

This configuration of a single pike controlling two solenoids was an allowed wiring configuration in [possibily distant] past seasons. Keep an eye out for the QandA item. Answers in the QandA are subject to change.

Eugene

@RebAl

I see what your saying. So the intent of the rule was to make sure that each motor, solenoid, etc was connected to the appropriate control apparatus.
Specifically, I was thinking of using a single spike to drive two single action solenoids (such as the Festo) as shown in the attached picture. This is from the spike manual. However, a post on the Q&A forum disallows this type of usage, hence the confusion.

EDIT: It appears that the question I am referring to has been removed from the Q&A forum.

[ChrisH]

@RebAl

Specifically, I was thinking of using a single spike to drive two single action solenoids (such as the Festo) as shown in the attached picture.

By the way, when talking about solenoid VALVES, it is probably best to call it a solenoid valve rather than just a solenoid. This will help reduce confusion about just what you are refering to. There are other sorts of solenoid actuators that are specifically prohibited, or at least have been in the past.

We wouldn’t want the freshman and rookies to get confused about what is allowed and what is not.

ChrisH

[RebAl]

This has been addressed: http://forums.usfirst.org/showthread.php?t=1292