Allen-Bradley PF7000A - Page 84

84 Rockwell Automation Publication 7000-TG002J-EN-P - March 2015 Chapter 2 Warning Messages
X X X X X X 2U1A Online 268 PWM RECTIFIER SGCT WARNING
This warning occurs if Redn Dvc Rec option is selected in
HardwareOptions1 (P141). This SGCT device in the rectifier
section was detected to be faulted while the drive was running.
The drive detected that the diagnostic feedback from this
device did not match the gating pattern.
• After isolating the drive from medium voltage, be sure that the
device, IGDPS power supply and the fiber-optic signals are not
damaged.
• Complete a resistance check per the instructions in the manual.
NOTE: SGCTs may not have completely shorted, and still could read
in the k range. Any devices with low suspect readings should be
changed.
• Check the LED status of the SGCT gate driver card for abnormal
readings.
• Complete a Gating Test mode check on the devices.
• Verify the associated 20V power supply is powered and active.
• Verify all the power connections to the SGCT firing card are seated
properly.
• Reset the drive and let the offline diagnostics further define the
problem.
• For nuisance faults, contact the factory about extending the
diagnostic delay.
NOTE: There is only the redundant option available on the rectifier,
and only on 6P drives (SCR or PWM). You cannot have N-1 operation
on the rectifier since we cannot control the line voltage.
X X X X X X 2U1B Online 274
X X X X X X 2U1C Online 280
X X X X X X 2U4A Online 271
X X X X X X 2U4B Online 277
X X X X X X 2U4C Online 283
X X X X X X 2V3A Online 270
X X X X X X 2V3B Online 276
X X X X X X 2V3C Online 282
X X X X X X 2V6A Online 273
X X X X X X 2V6B Online 279
X X X X X X 2V6C Online 285
X X X X X X 2W2A Online 269
X X X X X X 2W2B Online 275
X X X X X X 2W2C Online 281
X X X X X X 2W5A Online 272
X X X X X X 2W5B Online 278
X X X X X X 2W5C Online 284
All Drive Types PF7000A PF7000B PF7000C Marine Drive Heat pipe Drive
Warning Message Warning
Code
Description Recommended Action(s)