CACR-PR30 CSY166C [C] Fault on Zero

[unidec]

If you are experiencing a [C] fault on the CACR-PR30 CSY166C it could be caused by a defective motor/encoder assembly. However, we have discovered that on this 166C model that the cause may be a factory setting that is not correct. The setting is the SW1 header jumper located inside the drive. This header selects the motor type and is typically set for a USASED type motor. The setting for use in a GSM machine X axis is unconventional because the motor is a custom motor and therefore the setting found in the users manual showing sw1-4 installed if sw1-1 or sw1-2 is installed is incorrect.

The CACR-PR30 CSY166C SW1-4 jumper must be out for the X and Y axis use despite this jumper being specified in Yaskawa documentaion as required when SW1-1 or SW1-2 being installed. We test using this jumper installed but the client must have this jumper removed for this drive to function correctly in the GSM machine because the motor on the machine is a custom.

[unidec]

Servo Drives must be calibrated before they will function correctly. A [3] or [C] fault is typically a gain issue that can be corrected by making a minor adjustment of the IN-B and Loop Potentiometers on the front panel. Turning them up will cause the gain to increase, turning them down will reduce the gain. If the Servo motor is oscillating, it likely has too much gain. Try turning down the IN-B and Loop Pots. If you get an axis fault or timeout the gain may be too low causing the motor to respond too slowly.

With the power off, check the jumpers on SW1 first, SW1-4 should be out (check the SW1 jumper settings)