GE AF-650 GP Programming Manual page 192

Troubleshooting
Bit Hex Dec
27 08000000 134217728
28 10000000 268435456
29 20000000 536870912
30 40000000 1073741824
31 80000000 2147483648
Table 5.3 Description of Alarm Word, Warning Word and Extended Status Word
The alarm words, warning words and extended status words can be read out via a serial bus or optional network for
diagnostics. See also parameter DR-94 Ext. Status Word.
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.
- 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.
•
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.
DET-618D
AF-650 GP™ Programming Guide
Alarm Word Alarm Word 2
Brake IGBT (A27) Reserved
Option Change Reserved
(A67)
Drive Restored to Feedback Fault
factory (A61, A90)
settings(A80)
Safe Stop (A68) Safe Stop (A71)
Mech. brake low Dangerous
(A63) Failure (A72)
Troubleshooting
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.
Troubleshooting
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
02/2016 All rights reserved.
Warning Word Warning
Word 2
Voltage Limit (W64) Reserved
Encoder loss (W90) Reserved
Feedback Fault (W61,
W90)
Safe Stop (W68) Safe Stop
(W71)
Extended Status Word
•
Check the supply voltage and supply currents to
the frequency converter.
•
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).
•
Check that the supply voltage matches the
frequency converter voltage.
•
Perform an input voltage test.
•
Perform a soft-charge circuit test.
Extended
Status Word
Unused
Unused
Unused
Unused
Unused
5
191
5