86 Rockwell Automation Publication 7000-TG002J-EN-P - March 2015
Chapter 2 Warning Messages
X X 2U1A OnlineShrt 304 6P SCR RECTIFIER WARNING
This warning occurs if Redn Dvc Rec option is selected in
HardwareOptions1 (P141) and is valid only for 6P SCR drives.
This SCR device was detected to be short circuited while the
drive was running.
• After isolating the drive from medium voltage, be sure that the
device, snubber circuit, sharing resistor and the fiber-optic signal
are not damaged.
• For multiple device faults, the risk of a line to line short exists, so
tests with medium voltage isolated should be attempted.
• Complete a resistance check on the rectifier, including the gate-
cathode resistance, the snubber and sharing resistors.
• Complete a firing check on the rectifier.
• Verify the snubber circuitry, and the sharing resistors.
• Verify fiber-optic integrity from SCRGD board transmitter to FOI
board receiver.
• Replace all faulty components.
• 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 2U1B OnlineShrt 310
X X 2U1C OnlineShrt 316
X X 2U4A OnlineShrt 307
X X 2U4B OnlineShrt 313
X X 2U4C OnlineShrt 319
X X 2V3A OnlineShrt 306
X X 2V3B OnlineShrt 312
X X 2V3C OnlineShrt 318
X X 2V6A OnlineShrt 309
X X 2V6B OnlineShrt 315
X X 2V6C OnlineShrt 321
X X 2W2A OnlineShrt 305
X X 2W2B OnlineShrt 311
X X 2W2C OnlineShrt 317
X X 2W5A OnlineShrt 308
X X 2W5B OnlineShrt 314
X X 2W5C OnlineShrt 320
All Drive Types
PF7000A
PF7000B
PF7000C
Marine Drive
Heat pipe Drive
Warning Message Warning
Code
Description Recommended Action(s)
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