Rockwell Automation 2364F Regenerative DC Bus Supply Unit (RGU) - Manual (Page 108)

Publication 2364F-5.01– October 2003
10-2 Interpreting and Setting Status, Command, and Fault Words
Table 10.1 Descriptions of Fault Status Bits
Fault Status Word 1 (P174-P176)
Bit Description
0 ROM bad CRC
1 RAM error
2 Battery-backed RAM error
3 Error loading DSP software
4 Error loading FPGA software
5 I
q
foldback has occurred
6 M1 failure
7 SCANport error
8 RGU-to-RGU hardware error
9 Control voltage inadequate
10 Heatsink temperature is high
11 DC bus voltage less than minimum bus limit
12 DC bus voltage greater than maximum bus limit
13 Invalid data in battery-backed RAM
14 Bus failed to precharge
15 Host processor cannot connect to DSP processor
Fault Status Word 3 (P180-P182)
Bit Description
0 Reset due to host clock loss
1 Reset due to host double bus fault
2 Watchdog reset
3 RGU power-up enabled
4 Battery low for battery-backed RAM
5 Primary control clock has been lost
6 RGU-to-RGU duplicate address
7 Slave RGU lost communications from Master RGU
8 Dual-port RAM error
9 DSP clock is no longer synchronized with host clock
10 Loss of fast task
11 Loss of background task
12 Address bus error
13 Data bus error
14 Line voltage is low
15 Line voltage is high
Fault Status Word 2 (P177-P179)
Bit Description
0 Board-level desaturization
1 Board-level ground fault detected
2 Hardware-detected bus overvoltage
3 Hardware-detected bus overcurrent
4 Zero sequence errror
5 Phase-lock loop
6 Phase-loss error
7 RESERVED
8 RESERVED
9 RESERVED
10 Line overcurrent
11 Current offset
12 DSP processor not connecting to host
13 RESERVED
14 RESERVED
15 Unknown DSP processor error
Fault Status Word 4 (P183-P185)
Bit Description
0
I 2t approaching overload
1
I
2t
overload
2 Heatsink temperature high
3 Reset required
4 Heatsink sensor open, not connected
5 Heatsink sensor shorted
6 Master RGU has faulted
7 RESERVED
8 RESERVED
9 RESERVED
10 RESERVED
11 RESERVED
12 RESERVED
13 RESERVED
14 RESERVED
15 RESERVED