FST 75/150
260-2210-002 EN064
Page 27 / 37
Troubleshooting
Display Description
Remedy
F 4.6
Brake resistance overloaded
The unit generates too much energy on braking. The brake resistance
overloads too often. Reduce speed (Menus 41-48).
F 4.8
Load too high
FC is working in threshold region. Rated frequency of the motor has not
been set. The door moves sluggishly or the FC sizing is incorrect. Set the
rated frequency, reduce speeds or replace the FC with a more powerful
model.
F 4.9
Error of power amplifier
The power amplifier of the frequency converter is faulty. Reset the control.
A factory repair may be necessary.
F 5.1
ROM error
Reset the control unit by switching off and on and replace the control unit if
necessary.
F 5.2
Register error
Reset the control unit by switching off and on and replace the control unit if
necessary.
F 5.3
RAM error
Reset the control unit by switching off and on and replace the control unit if
necessary.
F 5.5
DES not active
Check the connection to the DES. Reset the control unit by switching off and
on and replace the DES if necessary.
F 5.6
Drive not running
A phase des mains is blocked or has failed. Check the door mechanics.
Check the rotary movement of the limit switch shaft. Check the motor
connection.
F 5.7
Rotating field incorrect
Exchange the phases on the power supply cables or the motor.
F 5.8
Speed beyond settings
System is accelerating without control. Weight to high.
F 5.9
Running time error
The normal running time for a complete run is exceeded. The drive is
blocked. Slip clutch too loose or defective. The limit switch is not yet
adjusted, see Troubleshooting.
F 6.2
Safety device in opening activated
Check the connection of safety device in opening direction for disconnection
F 6.3
Safety device in opening defect
Testing of safety device in opening direction negative or photocell defect.
F 6.4
Open safety circuit 8k2 activated
Check the activation of the safety circuit. The connecting lead may have
short circuited.
F 6.5
Open safety circuit 8k2 defective
Check the safety circuit and whether the connecting lead has been
interrupted.
F 6.6
Open safety circuit 1k2 activated
Check the safety circuit and whether the connecting lead has been
interrupted.
F 6.7
Open safety circuit 1k2 defective
Check the activation of the safety circuit. The connecting lead may have
short circuited.
F 6.9
Optical open safety edge activated or
defective
Check the activation of the closing edge or whether the connecting lead may
have short circuited.
F 7.1
Shut-down error
Drive moves in shut down mode. The brake is defective or moves on
emergency manual operation
F 7.2
wrong direction of rotation
Weight to high. Motor can not lift the weight. System moves into contrary
direction.
F 8.1
runtime error
runtime in programming mode is to short. It is a longer runtime needed
before programming position.
Display Remedy
E 1.1
An open command is triggered
E 1.2
A stop command is triggered
E 1.3
A close command is triggered
