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A.4.2 Configuration of the brake fault alarm
•
Activation of the brake fault alarm function.
The installer must have previously located the necessary digital inputs of the ADL drive and connected the correspond-
ing wires to the feedback signals on these inputs. Note that depending on the type of wiring arrangement, the brake
feedback signals are normally asserted (brake closed – digital input to 1) or normally not asserted (brake closed –
digital input to 0).
The brake fault alarm function envisages signals that are normally asserted. If the wiring is functionally inverted, simply
negate the corresponding digital inputs in the ADL configuration.
To configure the brake fault alarm function, proceed as follows:
1. In the 5.7 INPUTS/OUTPUTS menu , change the setting of parameter 11252 Brake Fbk A3 Sel (default Null) and
select the digital input corresponding to the second brake feedback signal If Brake Fbk A3 Sel is set to a value
other than Null, the brake fault alarm function is automatically enabled.
2. Next select the digital input corresponding to the first brake feedback signal in parameter 11236 Brake Fbk Sel.
The brake fault function is enabled. The installer in charge of the system must test the function each time it is
activated or modified, following the brake fault test procedure.
•
Resetting the brake fault alarm
1. Open the 5.9 LIFT ALARM menu and check that the Brake Alarm is on.
2. In the 5.9 LIFT ALARM menu, select parameter 11268 Reset Brake Alarm (default 0).
3. The system asks for a code, enter release code 5313.
4. Check again to see whether the Brake Alarm has been reset.
•
Disabling the brake fault alarm
1. In the 5.7 INPUTS/OUTPUTS menu, change the setting of parameter 11252 Brake Fbk A3 Sel to Null The brake
fault alarm function is disabled.
2. If the new configuration does not manage any brake feedback signals, change the setting of parameter 11236
Brake Fbk Sel to [3708] Brake cont mon .
•
Brake fault alarm test procedure
Proceed as follows:
1. Disconnect the wire connecting the first brake feedback signal to the relative digital input.
2. Try re-starting from the floor with the feedback signal disconnected. If the lift car does not move (correct behaviour),
proceed to step 3. If the lift car moves, the alarm is not working properly. Check the various parts of the system.
3. If the brake fault alarm is connected, reset it and proceed to step 4. If the alarm is not connection, re-check the vari-
ous parts of the system.
4. Repeat steps 1, 2 and 3, disconnecting the second brake feedback signal from the corresponding input.
If the procedure is successful, the brake fault alarm will function properly.
A.4.3 Maintenance of the brake fault alarm function
The installer must repeat the brake fault alarm test procedure during periodical inspections and whenever messages
concerning the brake unit are displayed.
The installer must check the alarm log each time for any faults
A.4.4 Troubleshooting
Fault
Motor does not run, the brake fault alarm is
triggered continuously
The motor runs even with the feedback
signals disconnected
ADL300 • Quick installation guide - Specifications and connection
Possible cause
Feedback signals disconnected/incorrectly
connected
Brake feedback not configured correctly
Monitoring time too short in relation to system
response times
The brake fault alarm is not connected.
Incorrect PAR 11252 Brake Fbk Sel A3 / PAR
11236 Brake Fbk Sel setting.
Solution
Re-check brake feedback signal wiring and
electric levels
Check PAR 11236 Brake Fbk Sel, PAR 11252
Brake Fbk Sel A3 configuration. Check correct
signal operation (electric levels) and invert
digital inputs if necessary
Set a longer PAR 11206 Brake Hold Off time
Check the setting of PAR 11252 Brake Fbk
Sel A3.
PAR 11252 Brake Fbk Sel A3 and PAR 11236
Brake Fbk Sel must not be set to Null or
Brake Cont Mon.
139
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Table of Contents
Troubleshooting
