12.2 Malfunction table – barrier malfunctions
→ For requirements to the MHTM MicroDrive service specialist, see page 17, chapter 2.4.1.
Malfunction: Display is difficult or impossible to read.
Possible cause |
Corrective action |
Removal by |
Display contact set too light or dark. |
Correct display contact. → See separate document "Description of control units MGC and MGC Pro for MHTMTM MicroDrive barriers", chapter "Setting display contrast". |
Electrical specialist |
Malfunction: Barrier out of operation. The message "Safety device missing" appears on the display.
Possible cause |
Corrective action |
Removal by |
No safety loop is connected to the plug-in module "Detector" and no safety light barrier to clamp X11 and X20. |
Connect either safety loop or safety light barrier. → See page 131, chapter 17.1. |
Electrical specialist |
Safety device defective |
Replace safety device |
Electrical specialist |
Malfunction: Barrier does not open.
Possible cause |
Corrective action |
Removal by |
Power supply is not connected |
n Switch on power supply. n Check power supply. |
Electrical specialist |
Error present. The corresponding error message is displayed. |
Depending on error message, check components, wiring, etc. |
MHTM MicroDrive service specialist |
Power supply is present. Control unit display does not light up. |
Control unit defective. Replace the control unit. Contact service. |
MHTM MicroDrive service specialist |
Closing signal is active. |
Remove closing signal |
Electrical specialist |
Too high trigger sensitivity set for the loop. |
Check the response sensitivity of the loop and adjust if necessary. |
MHTM MicroDrive service specialist |
Malfunction: Barrier does not open completely.
Possible cause |
Corrective action |
Removal by |
Spring tension in the balancing springs of the lever system set too weakly for the barrier arm weight. |
Adjust balancing springs. → See page 75, chapter 8.14. |
MHTM MicroDrive service specialist |
Malfunction: Barrier does not close. The message "Waiting for release" appears on the display.
Possible cause |
Corrective action |
Removal by |
The message appears after the power supply is switched on, after voltage returns and after reset. |
The release signal can be given by an external closing signal or by pushing the left operating button at the control unit. → See separate document "Description of control units MGC and MGC Pro for MHTMTM MicroDrive barriers", chapter "Startup settings". |
Operator |
Malfunction: Barrier does not close. The message "Waiting for passage" appears on the display.
Possible cause |
Corrective action |
Removal by |
The message appears after the power supply is switched on, after voltage returns and after reset. |
n The barrier closes once a vehicle passes. → See separate document "Description of control units MGC and MGC Pro for MHTMTM MicroDrive barriers", chapter "Start-up settings". n Confirm message with the left button at the control unit. |
Operator |
Malfunction: Barrier does not close. The display shows:
Possible cause |
Corrective action |
Removal by |
Loop not connected. |
Connect loop |
MHTM MicroDrive service specialist |
Detector mode incorrectly parameterised. |
Check parameterisation of the detector module and correct if required. → See separate document "Description of control units MGC and MGC Pro for MHTMTM MicroDrive barriers", chapter "Detector 1 (A-B)". |
MHTM MicroDrive service specialist |
Loop defective. |
Replace loop. |
MHTM MicroDrive service specialist |
Transfer resistance at the terminals |
Cut connecting leads, strip and connect them again without end sleeves. |
MHTM MicroDrive service specialist |
Malfunction: Barrier does not close.
Possible cause |
Corrective action |
Removal by |
Opening command is active. |
Cancel the opening command. |
Electrical specialist |
Induction loop reports engaged, although no vehicles are present. |
n Check and if necessary adjust loop frequencies. n Measure loops. Insulation resistance: > 1 Mohm contact resistance: 0.8 to 2.5 ohm Replace loop if the measured values differ from the specified values. |
MHTM MicroDrive service specialist |
Wire bridge between terminals X11 IN and OUT missing. |
If no safety light barrier is connected, a wire bridge must be installed between the clamps X11 OUT and IN. → See page 131, chapter 17.1. |
MHTM MicroDrive service specialist |
Message "Boom contact active": At the "Boom contact" input, boom ejection was detected. |
Barrier with SwingAway and automatic return: Wait for delay. |
Operator |
Barrier with SwingAway and manual return: Put barrier arm in the original position manually. |
Operator |
|
Barrier with flange FLVB02: Assemble barrier arm |
Operator |
|
Barrier without Swing Away: Replace the barrier arm |
MHTM MicroDrive service specialist |
Malfunction: Barrier does not close immediately after through traffic, but only after the hold-open time.
Possible cause |
Corrective action |
Removal by |
Opening signal is active for too long. |
Shorten opening signal to max. 1 second. |
Electrical specialist |
Safety loop does not respond. |
Check the response sensitivity of the safety loop. Adjust setting if necessary. |
MHTM MicroDrive service specialist |
Malfunction: Barrier does not close completely.
Possible cause |
Corrective action |
Removal by |
Spring tension in the balancing springs of the lever system set too strongly for the barrier arm weight. |
Adjust balancing springs. → See page 75, chapter 8.14. |
MHTM MicroDrive service specialist |
Impact was recognised. |
Wait several seconds, barrier closes if no obstacle is below the barrier arm anymore. |
– |
Malfunction: Barrier closes, although a vehicle is standing on the safety loop.
Possible cause |
Corrective action |
Removal by |
Option "monitoring" for the parameters "Mode A" or "Mode B" not selected in the menu "Loop detector 1 (A-B)". |
Select option "Monitoring". |
MHTM MicroDrive service specialist |
Cut off angle incorrectly parameterised. |
Check and adjust the cut off angle. |
MHTM MicroDrive service specialist |
Too low trigger sensitivity set for the loop. |
Check the response sensitivity of the loop and adjust if necessary. |
MHTM MicroDrive service specialist |
Unsuitable loop geometry installed. |
Install an appropriate loop geometry. |
MHTM MicroDrive service specialist |
Loop fault due to external loop detectors or other barriers in the proximity. |
Check the operating frequency of the loops and adjust if necessary |
MHTM MicroDrive service specialist |
Safety light barrier connected incorrectly or defective. |
Check safety light barrier function. |
MHTM MicroDrive service specialist |
User misbehaviour e.g. driving into closing barrier, or following behind another vehicle. |
Retrofit signal light, such as red/green signal light and parameterise lead time. |
MHTM MicroDrive service specialist |
Upgrade signs. |
Operator |
Malfunction: Menu items of the plug-in modules, such as "Detector 1 (A-B) are displayed but cannot be operated.
Possible cause |
Corrective action |
Removal by |
The SW-version of the plug-in module is lower than 0.10. The SW version is displayed in the respective menu in the submenu "Information". |
n Use plug-in module with a SW version 0.10 and up. n Perform update to SW-Version 0.12. |
MHTM MicroDrive service specialist |
Malfunction: The menu language of the plug-in module is English although another language was set.
Possible cause |
Corrective action |
Removal by |
The SW-version of the plug-in module is 01.10. The SW version is displayed in the respective menu in the submenu "Information". |
Perform update to SW-Version 0.12. |
MHTM MicroDrive service specialist |
12.3 Warning and interference messages on the display
The control unit differentiates between events, warnings and errors. The corresponding message is displayed.
Event messages "INFO" Event messages inform about events such as "switching to battery operation". The barrier continues to run normally. Event messages do not influence the outputs of the control unit.
Warning messages "WARNING" Faults that could be reset by the control unit are displayed as warnings. Operation of the barrier is not or only briefly impaired.
If the function "Warning" has been chosen for an output, this output is deactivated at pending warnings (fail safe).
Error messages "ERROR" Faults that cannot be reset by the control unit are displayed as errors. The barrier is shut down.
If the function "Error" has been chosen for an output, this output is deactivated at pending warnings (fail safe).
To take the barrier into operation again, the fault must be removed by an MHTM MicroDrive service specialist and a reset according to chapter 12.4. must be performed.
→ For requirements to the MHTM MicroDrive service specialist, see page 17, chapter 2.4.
With some messages, the control unit tries to reset
WARNING. If the attempt failed, the message is displayed as ERROR.
12.3.1 Event, warning and error messages – Logic control (Control unit)
Number |
Description |
Possible cause |
Corrective action |
FF01 WARNING |
Error barrier mechanics |
The first closing motion could not be performed completely. |
n If required, remove obstacle below the barrier arm. n Check barrier mechanics. n Check the spring setting of the balancing springs. |
FF02 WARNING |
Detector monitoring signal |
Communication between logic control and detector module impaired. |
n Perform reset. → See page 118, chapter 12.4. n Check plug contacts. n Clean plug contacts with spirit. Observe ESD provisions. n Replace the control unit. |
FF03 ERROR |
Monitoring device is missing |
No monitoring loop is connected to the detector module and no safety light barrier to the clamps X11 and X20. |
Connect either the safety loop or safety light barrier. → See page 131, chapter 17.1. |
Safety device defective |
Replace safety device. |
||
Sensitivity settings in the "Detector" menu too low. Not all vehicles are recognised. |
Change sensitivity. → See separate document "Description of control units MGC and MGC Pro for MHTMTM MicroDrive barriers", chapter "Detector 1 (A-B)". |
||
FF04 ERROR |
Barrier too fast |
Spring tension in the balancing springs of the lever system set too weakly for the barrier arm weight. |
n Adjust balancing springs. → See page 75, chapter 8.14. n Contact service if required. |
Number |
Description |
Possible cause |
Corrective action |
|
||||
FF05 WARNING |
Book contact / Swing-sway active |
At the "Boom contact" input, boom ejection was detected. |
n Barrier with SwingAway and automatic return: Wait for delay. n Barrier with SwingAway and automatic return: Put barrier arm in the original position manually. n Barrier with FLVB02 flange: Mount barrier arm. n Barriers without Swing Away or FLVB02 flange: Replace the barrier arm n If required, choose the option "Off" in the "Boom contact settings" menu. n Verify cables. |
|
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FF06 WARNING |
Vandalism |
The barrier arm was either lifted from the lower end position or stopped when closing. |
In the closed position, check that the lever system latches. |
|
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FF07 INFO |
Battery Backup active |
The barrier is supplied with voltage via the battery backup. |
Check and restore voltage supply. |
|
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FF08 INFO |
Mains operation active again after battery mode |
The barrier is supplied with mains voltage again. |
– |
|
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FF09 INFO |
Reduced opening angle |
In some barrier types, the opening angle can be mechanically limited with attachments. The control unit performs the required parameter adjustments automatically. |
Message appears although the opening angle has not been limited mechanically. n Remove obstacle to ensure that the lever system can lock in both end positions. |
|
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FF30 WARNING |
Impact detection |
Impact was recognised by the input "external impact contact". |
n Wait for a few seconds. The barrier closes if no obstacle is below the barrier arm anymore. n When no obstacle is present below the barrier arm, check input, e.g. contact strip. |
|
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3120 ERROR |
Mains voltage fluctuations |
Short-term mains outage was recognised |
n Check supply voltage/mains quality |
|
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5530 ERROR |
EEPROM checksum |
Check sum of the parameter incorrect |
n Re-set parameters to factory defaults. → See separate document "Description of control units MGC and MGC Pro for MHTMTM MicroDrive barriers", chapter "Factory settings". n Contact service if required. |
|
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|
Number |
Description |
Possible cause |
Corrective action |
||||
|
6000 ERROR |
Module update error |
A firmware update was not performed correctly. |
n Restart the control unit n If the error continues to be present, perform the update again via the service module. |
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|
6102 ERROR |
Software error system bus |
Within the control, an error is pending in communication. |
n Check FW versions of all plug-in modules. If required, perform update via service module. n If all FW versions are up to date, contact service. |
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|
6105 ERROR |
Error during homing |
The barrier could not perform any reference run. |
n Check motor communication. n Check mechanics. n Perform reset. → See page 118, chapter 12.4. |
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|
8130 WARNING |
Note monitoring |
Communication with a plug module was interrupted. |
n Check if all plugged modules are listed in the main menu. n Perform reset. → See page 118, chapter 12.4. n Contact service if required. |
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Table 24: Event, warning and error messages – logic control (control unit)
12.3.2 Event, warning and error messages – Motor GW
Number |
Description |
Possible cause |
Corrective action |
2220 WARNING |
Overcurrent |
Overcurrent was recognised |
n Warning may appear in connection with impact. n If no impact took place, check the cables. n Contact service if required. |
3211 WARNING |
Overvoltage |
Overvoltage was recognised |
n Warning may appear in connection with impact. n If no impact took place, check the cables. n Contact service if required. |
Number |
Description |
Possible cause |
Corrective action |
|
||||
3221 WARNING
|
Undervoltage
|
Undervoltage was recognised
|
The message may occur at an impact below the cut off angle. n Check if an impact has occurred below the cut off angle. |
|
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There is no impact. n Check wiring. n Check if there is an overload of the 24 V DC-supply. Supply additional consumer via separate mains unit. n Check the balancing spring settings. If required, remove heavy attachments from the barrier boom. n If required, contact Service. |
|
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4210 WARNING |
Overtemperature |
A high temperature was recognised. |
n Check motor temperature via display. The temperature must be below 100 °C. → See separate document "Description of control units MGC and MGC Pro for MHTMTM MicroDrive barriers", chapter "Motor GW". n Contact service if required. |
|
||||
4220 WARNING |
Derating error |
Motor power intake is reduced to avoid further temperature increase. |
n Remove impermissible attachments n Check the spring setting of the balancing springs. n Reduce speed of the barrier arm. n Contact service if required. |
|
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|
Number |
Description |
Possible cause |
Corrective action |
||||
|
FF30 WARNING |
Impact detection |
Current increase and speed deviation |
n Check safety devices. n Adjust menu "Cut off angle" → See separate document "Description of control units MGC and MGC Pro for MHTMTM MicroDrive barriers", chapter "Cut off angle". n Check setting of the parameter "Sensitivity" and adjust if required. → See separate document "Description of control units MGC and MGC Pro for MHTMTM MicroDrive barriers", chapter "Impact settings". n If there was no impact on an obstacle/vehicle, check the spring settings of the balancing springs and mechanics. |
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|
7510 ERROR |
Motor communications error |
Communication between motor and control impaired or interrupted |
n Verify cables n Contact service if required. |
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|
FF32 ERROR |
HW-Enable-Test failed |
– |
Contact service. |
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|
FF33 ERROR |
LS-Test failed |
Safety light barrier test failed |
Check light barrier and light barrier connection. |
||||
|
FF36 WARNING |
Motor reset Homing is performed automatically. |
A short overload or drop of the voltage supply of the motor controller has triggered a motor reset. |
Check the balancing spring settings. If required, remove heavy attachments from the barrier boom. |
||||
|
FF37 ERROR |
Motor update failed |
An error occurred when updating the software |
n Perform reset. → See page 118, chapter 12.4. n Contact service if required. |
||||
|
FF3A INFO |
Motor update performed |
This message is for information only. |
– |
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Table 25: Event, warning and error messages – Motor GW
12.3.3 Event, warning and error messages – Detector
The warning messages "FF4B" and "FF4C" are also reported through the output function "Error".
Number |
Description |
Possible cause |
Corrective action |
FF4A ERROR |
Hardware error |
Internal HW function test failed |
n Perform reset. → See page 118, chapter 12.4. n Contact service if required. |
FF4B WARNING |
Loop error A or C |
Short circuit or idle loop A or C |
n Remove loop error and perform adjustment. n If no loop is connected, select the option "Inactive" in the menu "Detector". |
FF4C WARNING |
Loop error B or D |
Short circuit or idle loop B or D |
n Remove loop error and perform adjustment. n If no loop is connected, select the option "Inactive" in the menu "Detector". |
Table 26: Event, warning and error messages – Detector
12.3.4 Event, warning and error messages – All modules
Number |
Description |
Possible cause |
Corrective action |
6010 WARNING |
Watchdog reset |
SW error |
Contact service if required. |
8110 WARNING |
Bus fault |
Warning |
Contact service if required. |
8120 WARNING |
Bus HW fault |
Warning |
n Check DIP switch next to service interface (position ON) n Remove devices at service interface if required. |