GE Industrial Solutions AF-300E$ - Manual (Page 96)

8-1
TABLE 11: Fault Condition Description and Operation
The following GE AF-300E$ drive protection functions have been incorporated in the basic drive software and will be
indicated in the LED display as well as listed in the fault table display.
Section 8: Troubleshooting
Protective
Function
Function Explanation
LED
Display
Remarks
Alarm RY
(30A, B & C)
Overcurrent Protects the Drive when the output current reaches the
momentary overcurrent protection level.
The protection is effective for Drive output terminals- U, V, W. O C 1
O C 2
O C 3 At accel
At decel
At oper X
Ground Fault Grounded output. The protecction is effective for Drive output
terminals - U, V, W. EF Grnd Fault X
Over voltage Protects the Drive when the DC bus voltage reaches the
momentary overvoltage protection level by a braking operation.
(Drive cannot protect against an input line overvoltage.) O U 1
O U 2
O U 3 At accel
At decel
At oper X
Under voltage Protects the Drive when the DC bus voltage reaches the
momentary low voltage protection level. Output alarm relay
(30a, b & c) is dependent on function. L U Function
10: 0 or 1
10: 2,3,4 X
- no
Over heat Protects the Drive against overheating caused by
overload operation, cooling fan failure, abnormal high ambient
temperatures, etc. O H 1
O H 3 Fin temp.
Internal
temp. X
DB (Dyn Brk) Protects the dynamic brake resistor from over-heating d b H X
Electronic
thermal
overload
Protects the Drive with electronic overload.
Protects the motor with electronic overload sense
Range of setting: 20 to 135% of Drive rated current. O L U
O L X
Inside fuse Detects the DC bus failed fuse, 15 Hp and above. F U S X
External Stops Drive by an external alarm signal. O H 2 X
Memory error Detects memory EE-PROM malfunction. E r 1 X
Keypad
communication
Detects a continuous communication error between
control PCB and keypad panel. E r 2 X
CPU error Detection of a CPU malfunction. E r 3 X
Option
communication
Detects a continuous communication error between
control PCB and option PCB. E r 4 X
Option error Detects Drive option failure. E r 5 X
Operating
Proc. Error
Detects Drive operating procedure error during Drive startup.
FWD or REV connected to terminal CM at time of main power
being applied to Drive. Stop keypad in remote operation. E r 6 X
Tuning error Detects missing connection to the motor @ auto-tune. E r 7 X
Prevent
stall
Prevents OC-trip by ceasing frequency output at high current when
torque limit is disabled and drive is accelerating, or when high impact
loads are applied to the motor. Second, by decreasing frequency
level when torque limit is activated and its value is being exceeded
during steady state operation and load acceleration.