Troubleshooting; Fault Condition Description And Operation - GE Fuji Electric AF-300ES Instructions Manual

Section 8: Troubleshooting
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.
Protective
Function
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.
Ground Fault Grounded output. The protecction is effective for Drive output
terminals - U, V, W.
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.)
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.
Over heat Protects the Drive against overheating caused by
overload operation, cooling fan failure, abnormal high ambient
temperatures, etc.
DB (Dyn Brk) Protects the dynamic brake resistor from over-heating
Electronic Protects the Drive with electronic overload.
thermal Protects the motor with electronic overload sense
overload Range of setting: 20 to 135% of Drive rated current.
Inside fuse Detects the DC bus failed fuse, 15 Hp and above.
External Stops Drive by an external alarm signal.
Memory error Detects memory EE-PROM malfunction.
Keypad Detects a continuous communication error between
communication control PCB and keypad panel.
CPU error Detection of a CPU malfunction.
Option Detects a continuous communication error between
communication control PCB and option PCB.
Option error Detects Drive option failure.
Operating Detects Drive operating procedure error during Drive startup.
Proc. Error FWD or REV connected to terminal CM at time of main power
being applied to Drive. Stop keypad in remote operation.
Tuning error Detects missing connection to the motor @ auto-tune.
Prevent Prevents OC-trip by ceasing frequency output at high current when
stall 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.
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Function Explanation
8-1
LED Alarm RY
Remarks
Display (30A, B & C)
O C 1 At accel
O C 2 At decel
O C 3 At oper
EF Grnd Fault
O U 1 At accel
O U 2 At decel
O U 3 At oper
L U Function
10: 0 or 1
10: 2,3,4
O H 1 Fin temp.
O H 3 Internal
temp.
d b H
O L U
O L
F U S
O H 2
E r 1
E r 2
E r 3
E r 4
E r 5
E r 6
E r 7
X
X
X
X
- no
X
X
X
X
X
X
X
X
X
X
X
X