Basic Troubleshooting; Start Up And Operation - GE AF-650 GP Operating Instructions Manual

Basic Troubleshooting

9 Basic Troubleshooting

9.1 Start Up and Operation

See Alarm Log in Table 4.1.
Symptom
Display dark / No function
9 9
Intermittent display
Motor not running
58
AF-650 GP Operating Instructions
Possible Cause
Missing input power
Missing or open fuses or circuit
breaker tripped
No power to the Keypad
Shortcut on control voltage
(terminal 12 or 50) or at control
terminals
Wrong contrast setting
Display (Keypad) is defective
Internal voltage supply fault or
SMPS is defective
Overloaded power supply (SMPS)
due to improper control wiring or
a fault within the drive
Service switch open or missing
motor connection
No mains power with 24V DC
option card
Keypad Stop
Missing start signal (Standby)
Motor coast signal active
(Coasting)
Wrong reference signal source
Test
See Table 3.1.
See open fuses and tripped circuit
breaker in this table for possible
causes.
Check the Keypad cable for proper
connection or damage.
Check the 24V control voltage
supply for terminal 12/13 to 20-39
or 10V supply for terminal 50 to 55.
Test using a different Keypad.
To rule out a problem in the
control wiring, disconnect all
control wiring by removing the
terminal blocks.
Check if the motor is connected
and the connection is not
interrupted (by a service switch or
other devise).
If the display is functioning but no
output, check that mains power is
applied to the drive.
Check if [Off] has been pressed.
Check E-01 Terminal 18 Digital Input
for correct setting for terminal 18
(use default setting).
Check E-03 Terminal 27 Digital Input
all digital inputs in parameter
group E-0# for Coast inv. setting.
Check reference signal: Local,
remote or bus reference? Preset
reference active? Terminal
connection correct? Scaling of
terminals correct? Reference signal
available?
Solution
Check the input power source.
Follow the recommendations
provided
Replace the faulty Keypad or
connection cable.
Wire the terminals properly.
Press [Status] + Up/Down arrows
to adjust the contrast.
Replace the faulty Keypad or
connection cable.
Contact supplier.
If the display stays lit, then the
problem is in the control wiring.
Check the wiring for shorts or
incorrect connections. If the display
continues to cut out, follow the
procedure for display dark.
Connect the motor and check the
service switch.
Apply mains power to run the unit.
Press [Auto] or [Hand] (depending
on your operation mode) to run
the motor.
Apply a valid start signal to start
the motor.
Deactivate Coast Inv signal
Program correct settings Check
F-02 Operation Method Set preset
reference active in parameter
C-05 Multi-step Frequency 1 - 8.
Check for correct wiring. Check
scaling of terminals. Check
reference signal.