Warning And Alarm Definitions - GE AF-650 GP Design And Installation Manual

Warnings and Alarms

10.4 Warning and Alarm Definitions

WARNING 1, 10 Volts low
The control card voltage is less than 10 V from terminal 50.
Remove some of the load from terminal 50, as the 10 V
supply is overloaded. Maximum 15 mA or minimum 590 Ω.
A short circuit in a connected potentiometer or incorrect
wiring of the potentiometer can cause this condition.
Troubleshooting
•
Remove the wiring from terminal 50. If the
warning clears, the problem is with the wiring. If
the warning does not clear, replace the control
card.
WARNING/ALARM 2, Live zero error
This warning or alarm only appears if programmed in
parameter AN-01 Live Zero Timeout Function. The signal on 1
of the analog inputs is less than 50% of the minimum
value programmed for that input. Broken wiring or a faulty
device sending the signal can cause this condition.
Troubleshooting
•
Check connections on all analog mains terminals.
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•
0 10
Check that the frequency converter programming
and switch settings match the analog signal type.
•
Perform an input terminal signal test.
WARNING/ALARM 3, No motor
No motor is connected to the output of the frequency
converter.
WARNING/ALARM 4, Mains phase loss
A phase is missing on the supply side, or the mains
voltage imbalance is too high. This message also appears
for a fault in the input rectifier. Options are programmed in
parameter SP-12 Function at Line Imbalance.
Troubleshooting
•
Check the supply voltage and supply currents to
the frequency converter.
WARNING 5, DC link voltage high
The DC-link voltage (DC) is higher than the high-voltage
warning limit. The limit depends on the frequency
converter voltage rating. The unit is still active.
WARNING 6, DC link voltage low
The DC-link voltage (DC) is lower than the low voltage
warning limit. The limit depends on the frequency
converter voltage rating. The unit is still active.
WARNING/ALARM 7, DC overvoltage
If the DC-link voltage exceeds the limit, the frequency
converter trips after a certain time.
102
Control card terminals 53 and 54 for
signals, terminal 55 common.
OPCGPIO terminals 11 and 12 for
signals, terminal 10 common.
OPCAIO terminals 1, 3, and 5 for signals,
terminals 2, 4, and 6 common.
DET-767c All rights reserved.
Troubleshooting
•
Extend the ramp time.
•
Change the ramp type.
•
Activate the functions in parameter B-10 Brake
Function.
•
Increase parameter SP-26 Trip Delay at Drive Fault.
•
If the alarm/warning occurs during a power sag,
use kinetic back-up (parameter SP-10 Line failure).
WARNING/ALARM 8, DC under voltage
If the DC-link voltage drops below the undervoltage limit,
the frequency converter checks for 24 V DC back-up
supply. If no 24 V DC back-up supply is connected, the
frequency converter trips after a fixed time delay. The time
delay varies with unit size.
Troubleshooting
•
Check that the supply voltage matches the
frequency converter voltage.
•
Perform an input voltage test.
•
Perform a soft-charge circuit test.
WARNING/ALARM 9, Inverter overload
The frequency converter has run with more than 100%
overload for too long and is about to cut out. The counter
for electronic thermal inverter protection issues a warning
at 98% and trips at 100% with an alarm. The frequency
converter cannot be reset until the counter is below 90%.
Troubleshooting
•
Compare the output current shown on the
keypad with the frequency converter rated
current.
•
Compare the output current shown on the
keypad with the measured motor current.
•
Show the thermal frequency converter load on
the keypad and monitor the value. When running
above the frequency converter continuous
current rating, the counter increases. When
running below the frequency converter
continuous current rating, the counter decreases.
WARNING/ALARM 10, Motor overload temperature
According to the electronic thermal protection, the motor
is too hot. Select whether the frequency converter issues a
warning or an alarm when the counter is >90% if
parameter F-10 Electronic Overload is set to warning
options, or whether the frequency converter trips when
the counter reaches 100% if parameter F-10 Electronic
Overload is set to trip options. The fault occurs when the
motor runs with more than 100% overload for too long.
Troubleshooting
•
Check for motor overheating.
•
Check if the motor is mechanically overloaded.
•
Check that the motor current set in
parameter P-03 Motor Current is correct.
MG35M402