GE AF-650 GP Programming Manual page 198

Troubleshooting
ALARM 71, PTC 1 safe stop
STO has been activated from external source. Normal
operation can be resumed when 24 V DC is applied to
terminal # 37. When that happens, send a reset signal (via
bus or digital I/O, or press [Reset]).
ALARM 72, Dangerous failure
STO with trip lock. An unexpected combination of STO
commands has occurred:
•
OPCPTC enables X44/10, but STO is not enabled.
•
OPCPTC is the only device using STO (specified
through selection [4] PTC 1 Alarm or [5] PTC 1
Warning in parameter E-07 Terminal 37 Safe Stop),
STO is activated, and X44/10 is not activated.
WARNING 73, Safe stop auto restart
STO activated. With automatic restart enabled, the motor
can start when the fault is cleared.
ALARM 74, PTC Thermistor
Alarm related to PTC Thermistor Card OPCPTC. The PTC is
not working.
ALARM 75, Illegal profile sel.
Do not write the parameter value while the motor runs.
Stop the motor before writing the MCO profile to
parameter O-10 Control Word Profile.
WARNING 76, Power Unit Setup
The required number of power units does not match the
detected number of active power units.
Troubleshooting
•
Confirm that the spare part and its power card
are the correct part number.
WARNING 77, Reduced power mode
The frequency converter is operating in reduced power
mode (less than the allowed number of inverter sections).
This warning is generated on power cycle when the
frequency converter is set to run with fewer inverters and
remains on.
ALARM 78, Tracking error
The difference between setpoint value and actual value
exceeds the value in parameter H-25 Tracking Error.
Troubleshooting
•
Disable the function or select an alarm/warning
in parameter H-24 Tracking Error Function.
•
Investigate the mechanics around the load and
motor, check feedback connections from motor
encoder to frequency converter.
•
Select motor feedback function in
parameter H-20 Motor Feedback Loss Function.
•
Adjust tracking error band in
parameter H-25 Tracking Error and
parameter H-27 Tracking Error Ramping.
DET-618D
AF-650 GP™ Programming Guide
ALARM 79, Illegal power section configuration
The scaling card has an incorrect part number or is not
installed. The MK102 connector on the power card could
not be installed.
ALARM 80, Drive initialised to default value
Parameter settings are restored to factory settings after a
manual reset. To clear the alarm, reset the unit.
ALARM 81, CSIV corrupt
CSIV file has syntax errors.
ALARM 82, CSIV parameter error
CSIV failed to initialize a parameter.
ALARM 83, Illegal option combination
The mounted options are incompatible.
ALARM 88, Option detection
A change in the option layout is detected.
Parameter H-01 Option Detection is set to [0] Frozen configu-
ration and the option layout has been changed.
•
•
WARNING 89, Mechanical brake sliding
The hoist brake monitor detects a motor speed exceeding
10 RPM.
ALARM 90, Feedback monitor
Check the connection to encoder/resolver option and, if
necessary, replace OPCENC or OPCRES.
ALARM 91, Analog input 54 wrong settings
Set switch S202 in position OFF (voltage input) when a
KTY sensor is connected to analog input terminal 54.
ALARM 99, Locked rotor
Rotor is blocked.
WARNING/ALARM 101, Speed monitor
The motor speed monitor value is outside range. See
parameter H-30 Motor Speed Monitor Function.
WARNING/ALARM 104, Mixing fan fault
The fan is not operating. The fan monitor checks that the
fan is spinning at power-up or whenever the mixing fan is
turned on. The mixing-fan fault can be configured as a
warning or an alarm trip in parameter SP-53 Fan Monitor.
Troubleshooting
•
WARNING/ALARM 122, Mot. rotat. unexp.
The frequency converter performs a function that requires
the motor to be at standstill, for example DC hold for PM
motors.
WARNING 123, Motor Mod. Changed
The motor selected in parameter P-20 Motor Construction is
not correct. Check the motor model.
02/2016 All rights reserved.
To apply the change, enable option layout
changes in parameter H-01 Option Detection.
Alternatively, restore the correct option configu-
ration.
Cycle power to the frequency converter to
determine if the warning/alarm returns.
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