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F 7.2
Error in charger.
This message is shown if the power/charger is no longer
able to charge the batteries. Replace the batteries
and/or the power/charger.
F 7.3
Batteries’ impedance too high.
The internal resistance of the batteries is too high.
Check the connection between the batteries and the
power/charger. If this is as it should be, replace the
batteries.
F 7.4
No batteries detected.
No batteries have been connected. Check the
connection between the batteries and the
power/charger. If this is as it should be, replace the
batteries and/or the power/charger.
F 7.5
Error in rotating field 3-phase input
when starting controller.
Possible solution. Change two phases on input X1 of the
controller.
F 7.6
A phase is missing on the input when
starting controller.
Possible solutions: For a 3-phase connection, check the
phases on the input. Check fuses FS1, FS2 and FS3 on
the circuit board. For a 1-phase motor. Check the phase
on X1 L1 and the neutral on L2. Check FS1 and FS2.
Remove mains power and battery power and re-
connect them after 30 seconds.
F 7.7
Error in main relay.
The relay is jammed or there is no voltage in the relay
output if it is activated when the motor operated.
Possible solution: Check if all phases are present in the
mains power. Check FS1, FS2 and FS3. Remove mains
power and battery power and re-connect them after 30
seconds. If this is as it should be, replace the controller.
F 7.8
Error in inversion circuit.
Tested for each end position. This error message is
generated if one of these relays is jammed. Possible
solution: fully cut power to the controller, and start
again. Swap control circuit board if the message
reappears.
F 7.9
Internal hardware error.
The inputs with resistance detectors are tested each
time when the end position is reached.
Possible solutions: fully cut power to the controller, and
start again. If this does not work, swap the control
circuit board.
F 8.1
Internal error IO module 1 (optional).
Switch off power and switch it back on again. Replace
the IO module if this does not work.
F 8.2
Communication error IO module 1
(only if I/O module connected).
Error in communication with the IO module. Check the
cables between the IO module and the controller. Check
if the terminating resistor on the module is activated if
this is the last device on the bus. If this is as it should be,
replace the IO module or controller.
F 8.3
Internal error IO module 2 (optional).
Switch off power and switch it back on again. Replace
the IO module if this does not work.
F 8.4
Communication error IO module 2
(only if I/O module connected).
Error in communication with the IO module. Check the
cables between the IO module and the controller. Check
if the terminating resistor on the module is activated if
this is the last device on the bus. If this is as it should be,
replace the IO module or controller.
