Rockwell Automation 20D PowerFlex 700S Drive Ph I Control, Frames 1...11 - Manual (Page 157)

Troubleshooting 4-3
Precharge Board LED Indications
Precharge Board LED indicators are found on Frame 5 & 6 drives. The
LEDs are located above the “Line Type” jumper shown in
Figure 1.2 .
Table 4.B Common Causes of a Pre-Start Alarm
Name Color State Description
Power Green Steady Indicates when precharge board power supply is operational
Alarm Yellow Flashing
[1]
[2]
[3]
[4]
[5]
[6]
[7]
Number in “[ ]” indicates flashes and associated alarm
(1)
:
Low line voltage (<90%).
Very low line voltage (<50%).
Low phase (one phase <80% of line voltage).
Frequency out of range or asymmetry (line sync failed).
Low DC bus voltage (triggers ride-through operation).
Input frequency momentarily out of range (40-65 Hz).
DC bus short circuit detection active.
(1)
An alarm condition automatically resets when the condition no longer exists
Fault Red Flashing
[2]
[4] Number in “[ ]” indicates flashes and associated fault
(2)
:
DC bus short (Udc <2% after 20 ms).
Line sync failed or low line (Uac <50% Unom).
(2) A fault indicates a malfunction that must be corrected and can only be reset after cycling power.
Examine Parameter 156 [Run Inhibit Status]
Bit Description Action
1 No power is present at the Enable Terminal TB1- T7 Apply the enable
2, 3, 4 A stop command is being issued Close all stop inputs
5 Power loss event is in progress, indicating a loss of the AC
input voltage Restore AC power
6 Data supplied by the power structure EEprom is invalid or
corrupt Cycle the power. If problem persists, replace the power structure.
7 Flash Update in Progress Complete Flash Procedures
8 Drive is expecting a Start Edge and is receiving a continuous
signal. Open all start buttons and remove all start commands
9 Drive is expecting a Jog Edge and is receiving a continuous
signal. Open all jog buttons and remove all jog commands
10 A conflict exists between the Encoder PPR programming
(Parameter 232 or 242) and the encoder configuration for
edge counts (Parameter 233 or 243, bits 4 & 5). Verify encoder data and reprogram
11 The drive cannot precharge because a precharge input is
programmed and no signal is present. Reprogram the input or close the precharge control contact.
12
Dig
ital
Co
nfig
urati
on
Start input configured but stop not configured Program Par 838-840 to include a stop button, rewire the drive
Run input configured but control options do not match Program Par 153, Bit 8 to “0” (2 wire control)
Start input configured but control options do not match Program Par 153, Bit 8 to “1” (3 wire control)
Multiple inputs configured as Start or Run Reprogram Par 838-840 so multiple starts, multiple runs or any
combination do not exist
Multiple inputs configured as Jog1 Reprogram Par 838-840 so only (1) is set to Jog1
Multiple inputs configured as Jog2 Reprogram Par 838-840 so only (1) is set to Jog2
Multiple inputs configured as Fwd/Rev Reprogram Par 838-840 so only (1) is set to Fwd/Rev
14 Invalid Feedback Device for Permanent Magnet Motor Control Set Par 222 to Value 5 (FB Opt Port0)