WEG CFW-11 - Faults and Alarms

Quick Parameter Reference, Faults and Alarms
Crane Horizontal Motion | 9
FAULTS AND ALARMS
Fault/Alarm Description Possible causes
A750:
Lightweight Operation
The Crane Horizontal Motion application is
operating in the lightweight mode.
The motor speed is greater than P1039 and the
motor current is less than P1038 when a load
forward or reverse command is being executed.
A752:
Coast to Stop
The general enable signal has been
removed, releasing the motor to cast down.
Digital input DI3 with logical level “0”
A754:
Fast Stop
The fast stop command has been activated.
Digital input DI3 with logical level “0”
A756:
Emergency Stop
The emergency stop command has been
activated.
Digital input DI3 with logical level “0”
A758:
Stop by Simultaneous Commands
The application has been stopped because
of the simultaneous activation of the
hoisting and the lowering commands.
Digital inputs DI1 and DI2 with logical level “1”
A760:
Forward Slowdown Limit Switch
The forward slowdown limit switch has
been actuated.
The digital input DI5 or DI9 is with logical level
“0”. The digital input for that function is defined
by the parameter P1025.
A762:
Reverse Slowdown Limit Switch
The reverse slowdown limit switch has been
actuated.
The digital input DI5 or DI6 or DI10 is with logical
level “0”. The digital input for that function is
defined by the parameter P1025.
A764:
Stop Forward Limit Switch
The stop forward limit switch has been
actuated.
The digital input DI6 or DI11 is with logical level
“0”. The digital input for that function is defined
by the parameter P1025.
A766:
Stop Reverse Limit Switch
The stop reverse limit switch has been
actuated.
The digital input DI6 or DI12 is with logical level
“0”. The digital input for that function is defined
by the parameter P1025.
A770:
Momentary Overload
An attempt a load heavier than the
maximum operational capacity of the
application has been detected
The motor current during the forward or reverse
stage is greater than or equal to the value
adjusted in P1052.
F775:
Inverter in Torque Limit
The frequency inverter reached the adjusted
torque limit because of excessive load or
demanded force.
The difference between the actual speed and the
speed reference is greater than or equal to the
hysteresis value adjusted in P1028.
F777:
Improper Operation
Several consecutive alarm messages
occur
red during a certain period, disabling
the frequency inverter.
The number of consecutive alarms generated
during a certain period is greater than or equal to
the value adjusted in P1058.