Emotron EMX Serie Manuel D'instructions page 29

Table 4 Troubleshooting
Alarm indication
S
Red LED is lit
No LED lit -
Red and
green flash
slowly and
alternately
Red and
green LED
flash rapidly
and
alternately
Red LED
flashes
slowly
24 Maintenance/troubleshooting
E Fault
Overload/
motor
protection
Supply
voltage
missing
Overvoltage
Under-
voltage
Earth fault in
the motor
Short circuit
in the motor
Circuit break
in the motor
Fault condition/Action required
The motor protection has been activated
due to excessive load. Check that the
motor cables are connected correctly, see
the chapter on Mounting/Connection.
Check also that the rotor runs freely and
that the diameters of the rotor and pulley
is according to Table 9 page 29. If wrong
pulley is mounted, change pulley or
change max. speed with DIP-switch 7 and
8 acc. to chapter 2.2.7 page 17.
If the fault remains, carry out motor
diagnosis. Replace the motor if it is faulty.
If the fault does not lie within the motor,
replace the control unit.
Check that 230 VAC ±15% is connected to
the supply terminal.
The supply voltage exceeds 264 VAC.
The supply voltage lies below 196 VAC.
Disconnect the supply voltage, check the
connection of the motor cable and check
that the correct motor is connected. If the
fault remains, carry out motor diagnosis.
If the motor is faulty, replace it. If the fault
does not lie within the motor, replace the
control unit.
Emotron AB 01-3333-01r3