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Unread 27-01-2015, 10:25
Unsung FIRST Hero
Al Skierkiewicz Al Skierkiewicz is offline
Broadcast Eng/Chief Robot Inspector
AKA: Big Al WFFA 2005
FRC #0111 (WildStang)
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Re: Two Motors one PWM help?

Quote:
Originally Posted by notmattlythgoe View Post
This unfortunately is not legal, each motor controller must be hooked up to one port.
Matt,
R57 Every relay module, servo, and PWM motor controller shall be connected to a corresponding port (relays to Relay ports, servos and PWM controllers to PWM ports) on the roboRIO or via a legal MXP connection (per R58). They shall not be controlled by signals from any other source.

This actually provides that no other source can be used to provide control for the listed devices except the RoboRio. This is safety issue in that we know the RoboRio can be disabled/enabled via the FMS. Other devices likely would not provide this level of control and might cause robot movement when the robot is disabled. That is the underlying reason, active MXP boards must be pre-approved by FIRST Engineering.

To the OP, how are your two motors designed to operate? Are they connected together on a mechanism? Can you tell us what indications on the motor controllers are present?
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Good Luck All. Learn something new, everyday!
Al
WB9UVJ
www.wildstang.org
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