Allen-Bradley PowerFlex 700S Quick Start Manual page 31

❏ 7. Examine the Status (STS) LED. Verify that it is flashing green. If it is not
Table O Common Causes of a Pre-Start Alarm
Examine Par 156 - Run Inhibit Status
bit Description
1 No power is present at the Enable Terminal TB1 - T7
2, 3, 4 A stop command is being issued
Power loss event is in progress, indicating a loss of the AC
5
input voltage
Data supplied by the power structure EEprom is invalid or
6 corrupt
7 Flash Update in Progress
Drive is expecting a Start Edge and is receiving a continuous
8
signal
Drive is expecting a Jog Edge and is receiving a continuous
9
signal
A conflict exists between the Encoder PPR programming (Par
10 232 or 242) and the encoder configuration for edge counts
(Par 233 or 243, bits 4 & 5)
The drive cannot precharge because a precharge input is
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programmed and no signal is present
Start input configured but stop not configured
Run input configured but control options do not match
Start input configured but control options do not match
12 Multiple inputs configured as Start or Run
Multiple inputs configured as Jog1
Multiple inputs configured as Jog2
Multiple inputs configured as Fwd/Rev
14 Invalid Feedback Device for Permanent Magnet Motor Control Set Par 222 [Mtr Fdbk Sel] to 5 "FB Opt Port0"
Table P Common Start-Up Faults
Fault Description
Encoder Loss One of the following has occurred on an encoder:
• missing encoder (broken wire)
• quadrature error
• phase loss
Motor Overload A motor overload is pending.
Motor Poles Fault The poles of the motor do not match its rating.
If any digital input is configured to Stop - CF (CF=Clear Faults) verify that
the signal is present or that the drive will not start. Refer to Chapter 4 in the
PowerFlex 700S Drives with Phase I Control User Manual, publication
20D-UM001, for a list of potential digital input conflicts.
If a fault code appears, refer to Chapter 4 in the PowerFlex 700S Drives with
Phase I Control User Manual, publication 20D-UM001.
The STS LED should be flashing green at this point.
❏ 8. Proceed to Step 6 Program the Drive - Start-Up.
in this state, check the following possible causes and take the necessary
corrective action.
Action
Apply the enable
Close all stop inputs
Restore AC power
Cycle power (wait five (5) minutes before re-applying power
to the drive). If problem persists, replace the power
structure
Complete Flash Procedures
Open all start buttons and remove all start commands
Open all jog buttons and remove all jog commands
Verify encoder data and reprogram
Reprogram the input or close the precharge control contact
Program Par 838-840 to include a stop button, rewire the
drive
Program Par 153, Bit 8 to "0" (2 wire control)
Program Par 153, Bit 8 to "1" (3 wire control)
Reprogram Par 838-840 so multiple starts, multiple runs or
any combination do not exist
Reprogram Par 838-840 so only (1) is set to Jog1
Reprogram Par 838-840 so only (1) is set to Jog2
Reprogram Par 838-840 so only (1) is set to Fwd/Rev
Action
Reconnect encoder or replace encoder.
Enter correct motor nameplate full load amps. Par 2 [Motor
NP FLA] or reduce excess load.
Enter correct motor nameplate RPM. Par 4 [Motor NP
RPM]
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