Basic Troubleshooting; Start Up And Operation - GE AF-600 FP Series Design And Installation Manual

Basic Troubleshooting

11 Basic Troubleshooting

11.1 Start Up and Operation

Symptom
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
Display dark/No function
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 frequency
Intermittent display
converter
Service switch open or missing
motor connection
No mains power with 24 V DC
option card
keypad Stop
Missing start signal (Standby)
Motor not running
Motor coast signal active
(Coasting)
Wrong reference signal source
TM
AF-600 FP Design and Installation Guide
Possible cause
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 24 V control voltage
supply for terminals 12/13 to 20-39
or 10 V supply for terminals 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 device).
If the display is functioning but no
output, check that mains power is
applied to the frequency converter.
Check if [Off] has been pressed
Check E-01 Terminal 18 Digital Input
for correct setting for terminal 18
(use default setting)
Check if a coast inv command is
programmed for the terminal in
parameter group E-0# Digital
Inputs.
Check reference signal: Local,
remote or bus reference? Preset
reference active? Terminal
connection correct? Scaling of
terminals correct? Reference signal
available?
DET-768b
Test
Check the input power source
Follow the recommendations
provided
Replace the faulty keypad or
connection cable
Wire the terminals properly
Press [Status] + [
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 operation mode) to run the
motor
Apply a valid start signal to start
the motor
Apply 24 V on terminal or program
this terminal to No operation
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.
Solution
▲ ▼
]/[ ] to adjust
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