Allen-Bradley powerflex 700 User Manual

4-6 Troubleshooting
HW OverCurrent 12
➀
The drive output current has
exceeded the hardware current
limit.
Check programming. Check for
excess load, improper DC boost
setting, DC brake volts set too high or
other causes of excess current.
Incompat MCB-PB 106
➁
Drive rating information stored on
the power board is incompatible
with the main control board.
Load compatible version files into
drive.
I/O Comm Loss 121 I/O Board lost communications
with the Main Control Board.
Check connector. Check for induced
noise. Replace I/O board or Main
Control Board.
I/O Failure 122 I/O was detected, but failed the
powerup sequence.
I/O Board is separate in Standard
& integral in Vector Control.
Replace I/O Board (Standard
Control) or Main Control Board
(Vector Control).
I/O Mismatch 120 I/O board configuration not the
same from last time drive was
powered up.
Verify configuration.
Input Phase Loss 17 The DC bus ripple has exceeded
a preset level.
Check incoming power for a missing
phase/blown fuse.
IR Volts Range 77 “Calculate” is the autotune default
and the value determined by the
autotune procedure for IR Drop
Volts is not in the range of
acceptable values.
Re-enter motor nameplate data.
IXo VoltageRange 87 Voltage calculated for motor
inductive impedance exceeds
25% of [Motor NP Volts].
1. Check for proper motor sizing.
2. Check for correct programming of
[Motor NP Volts], parameter 41.
3. Additional output impedance may
be required.
Load Loss 15 Drive output torque current is
below [Load Loss Level] for a time
period greater than [Load Loss
time].
1. Verify connections between motor
and load.
2. Verify level and time
requirements.
Motor Overload 7
➀
➂
Internal electronic overload trip.
Enable/Disable with [Fault Config
1] on page 3-46
.
An excessive motor load exists.
Reduce load so drive output current
does not exceed the current set by
[Motor NP FLA].
Motor Thermistor 16 Thermistor output is out of range. 1. Verify that thermistor is
connected.
2. Motor is overheated. Reduce
load.
NVS I/O
Checksum
109 EEprom checksum error. 1. Cycle power and repeat function.
2. Replace Main Control Board.
NVS I/O Failure 110 EEprom I/O error. 1. Cycle power and repeat function.
2. Replace Main Control Board.
Fault
No. Type
(1)
Description Action
Standard

Allen-Bradley powerflex 700 Specifications

General

Series	PowerFlex 700
Category	AC Drive
Input Voltage	200-240V AC, 380-480V AC, 500-600V AC
Enclosure	Type 1
Control Method	Sensorless Vector
Communication	EtherNet/IP, ControlNet, DeviceNet, PROFIBUS DP, Modbus