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Si12-308
Troubleshooting
Service Diagnosis
179
5.7
Shutter Drive Motor / Shutter Limit Switch Abnormality
Remote
Controller
Display
C7
Method of
Malfunction
Detection
The shutter open / close performance is detected by the limit switch attached on its structure. In
this way, the shutter drive motor and the shutter limit switch are checked for failure.
Malfunction
Decision
Conditions
When the shutter is open, the limit switch is closed.
Supposed
Causes
Shutter drive motor defective
Shutter limit switch defective
Shutter itself deformed (warped)
Shutter's sealing material too thick
Detection error by broken relay harness or disconnected connector
Detection error due to defective PCB (2)
Foreign substance in blow port
Troubleshooting
Check No.3
Refer to P.207
Turn off the power.
Check No. 3
Check the limit switch continuity.
Remove such substance.
Replace the limit switch.
Reconnect the connector or
replace the relay harness.
Replace the shutter drive
motor or the PC board (2).
Check the shutter's sealing
material.
Check the shutter for
deformation or its sealing
material.
(Q0346)
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Foreign substance in
the shutter structure?
YES
NO
NO
NO
YES
Shutter closed?
NO
Shutter opening itself?
YES
YES
YES
NO
Relay harness
broken or connector
disconnected?
Limit switch on power?
Open the shutter and turn on the
power.
Summary of Contents for Super Multi NX B series
Page 7: ...Si12 308 vi Table of Contents ...
Page 29: ...List of Functions Si12 308 18 List of Functions ...
Page 71: ...Specifications Si12 308 60 Specifications ...
Page 175: ...Instruction Si12 308 164 System Configuration ...
Page 227: ...Check Si12 308 216 Service Diagnosis ...
Page 288: ...Si12 308 Wiring Diagrams Appendix 277 FTXD50BVMC FTXD60 71BVMC ...
Page 299: ...Si12 308 iv Index ...