Quote:
Originally Posted by Gdeaver
The programmable servo is listed under FRC. I believe those specs are over the FRC limit of 4 watts. I get 10.68 watts. Until there is a season that FRC changes the 4 watt limit, Maybe it should be listed under FTC only.
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By now you guys may have noticed that FIRST has changed the ruling on servo legality (allowing any COTS servo) so the REV Servo is now legal for use on FRC bots.
From the blue box for R29
Quote:
For servos, note that the roboRIO is limited to a max current output
of 2.2A on the 6V rail (12.4W of electrical input power). Teams should
make sure that their total servo power usage remains below this limit at
all times.
This is the total number of each motor a Team may use on their
ROBOT, not the quantity per part number. For example, each team
may use up to six (6) CIM motors on their ROBOT, regardless of the
quantity or combination of each individual part number used.
Given the extensive amount of motors allowed on the ROBOT,
Teams are encouraged to consider the total power available from the
ROBOT battery during the design and build of the ROBOT. Drawing
large amounts of current from many motors at the same time could
lead to drops in ROBOT battery voltage that may result in tripping
the main breaker or trigger the brownout protection of the roboRIO.
For more information about the roboRIO brownout protection and
measuring current draw using the PDP, see RoboRIO Brownout and
Understanding Current Draw.
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So when choosing servos (including the REV one) just make sure you understand the power consumption involved.