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Home > Services > Technical Documents > How To Check A Yaskawa CACR**** Servpack

How To Check A Yaskawa CACR**** Servopack

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18. Diode Bridge #1

The diode bridge #1 is a component in the braking circuit. When the servomotor is turned off, the continued spinning of the motor generates a voltage across U, V, and W. The diode bridge directs the current from this voltage to the braking resistor to be dissipated. This results in a smooth braking of the motor.


Diode Bridge


19. Diode Bridge #1 Check

Test Equipment – Digital Multimeter


Step # Multimeter Positive Lead Multimeter Negative Lead Expected Reading (Diode Check)
1 Negative module terminal Module terminal 1, 2, 3 Approximately 0.5 Volts must be consistent with each other.
2 Module terminal 1, 2, 3 Positive module terminal Approximately 0.5 Volts must be consistent with each other.


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9 Schilling Road, Suite 210
Hunt Vally, MD 21031
If you need to send your servo pack in for repair, please contact us (see info on right) to get an RMA number, shipping address, and instruction on how to send it to us for a free evaluation. For Servo Pack repair:
call: (800) 605-6419
click: ACS Repair Form
   
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