Diagnostics
LD-16 Door Operator - Modernization
70
© Vertical Express
Troubleshooting Guide
Problem
Possible Causes or Solutions
The Door Does Not Move At All
If STATE LED is blinking = Fault; the fault codes can be read by either IMS or WPT.
(# blinks) Fault Type
(1) Motor or Encoder Fault
(3) Internal Board Fault
(4) Abnormal Operation
(5) Learn Error
1.
Check if power is ON. The POWER LED must illuminate if X19 is connected and the circuit
breaker in the elevator control panel is ON.
2. Check WD LED. If continuous illuminate/blink, switch OFF/ON or replace electronic unit.
3. Verify the motor and encoder wires (plug X4 and X10) are correctly connected and the
motor is not overheated.
4. Verify the control panel is sending an Open or Close Command.
•
Discrete interface system: I1-I2/X1, LED I1, I2
•
Serial system: see Serial Communication for TKE Legacy Control Systems on
page 71.
5. Verify that the friction is not too high when the door is manually moved. If the STATE
LED flashes, use IMS or the WPT to read the faults; switch OFF/ON.
6. Verify the DIP Switch settings.
The Door Does Not Reopen
1.
When Automatic Reopen is selected (DIP switch S1/2 is ON), an Automatic Reopen pro-
cess is executed by the IPD input (safety edge input) or by the Close Force Limiter.
2. Check the following reopen devices:
•
Curtain of Light: not defected or dirty.
•
Close Force Limiter: friction is not too high.
Faults Cause Reset or
Switch Off
If STATE LED is blinking = Fault; the fault codes can be read by either IMS or WPT.
(# blinks) Fault Type
(1) Motor or Encoder short circuit - open wires and/or missing signals
(3) Overcurrent, e.g., power stage or motor short circuit.
(3) Internal electronic fault.
(4) Door mechanically blocked
(5) Mechanical end not found (>=3.5m).
OFF = Undervoltage; supply voltage is measured and if too low, power stage switches OFF.
Faults Decrease Door
Performance
If STATE LED is blinking = Fault; the fault codes can be read by either IMS or WPT.
(# blinks) Fault Type
(4) Motor and/or power stage temperature too high, and the software reduces the
motor power. If the temperature exceeds a higher limit, the power stage is shut
down for cooling.
(5) Faulty reference switch.
OFF = Low voltage supply, low line voltage.
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