I have a 420ia robot with a R30ia controller. We been having issues over time getting water/chemicals seeping into the motor connector at the robot pedestal. We would get a G1 A4 fault and take apart the connector, clean it out and back to running. We were in process of finding a fix for this issue. today it happened again, the bottom 3 pins in the motor connector were pretty corroded so we jumpered around them so we could temp get back to running until full repair could be accomplished. Now no matter which axis I try to jog (even at 10%) I get a SRVO 050 for that axis. Everything appears normal on the Servo Amp , fuses all good, etc, The only thing I can think of they would all have in common is the brake voltage. Anyone got any ideas?
SRVO 050 fault on all axes
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geoplc -
May 24, 2015 at 6:23 PM -
Thread is marked as Resolved.
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Measure if you have the 90V DC on your brake connectors when your motor is going into servo on.
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Thank you RoBoWi,
I believe all the fuses on the servo amp were good and I do not hear the "click" of the brake releasing on any axes. Is there a test point on the servo amp that I can see if that voltage is missing? -
Please check the alarm screen, both current and history. I would think there are more alarms associated with this.
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Just a followup. Turns out the J2 and J3 brake power pins were shorted to the BRK common pin. Had to replace the entire harness but back in operation. Thanks for the replies.
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good I am glad your running, but FYI if you are checking the brake voltage, you will only see 90v when the power is first applied after that
the 45v will be continues. -
I think certainly after calibration ' PAYLOAD CALİBRATİON' where do you receive an alarm for SRVO -050 . I take care of my robots in this way I had the same problem in my . Of course , this ' PAYLOAD CALİBRATİON ' for the need to take forward the J2 position 30 degrees .