76
Troubleshooting
Section 5-2
Special I/O Unit Restart Bits
Note
When an error cannot be cleared by turning ON the PLC or toggling the Unit’s
Special I/O Unit Restart Bit, refer to
5-1 Error and Alarm Processing
for details
on correcting the cause of the error.
5-2
Troubleshooting
If some problem develops with the Temperature Control Unit, use the following
procedure to isolate and correct the problem.
Bit
Function
Remarks
A50200
Unit 0 Restart Bit
The corresponding Special I/O Unit will
restart when its Restart Bit is turned ON and
OFF.
A50201
Unit 1 Restart Bit
:
:
:
:
A50215
Unit 15 Restart Bit
A50300
Unit 16 Restart Bit
:
:
:
:
A50714
Unit 94 Restart Bit
Check LED Indicators.
Check switch settings
and wiring.
Check the Temperature Controller Unit’s operating status with the
LED Indicators.
Follow the procedures described in
5-1 Error and Alarm Processing
to isolate and correct any problems indicated by the LED Indicators.
Check the switch settings and wiring.
•
Power Supply
1. Is the power supply ON?
2. Is the voltage at the terminals within the allowed range?
•
Switches
Are the switch settings correct for the system you are using?
•
Wiring
1. Is the terminal block wiring correct?
2. Is the polarity correct (not reversed)?
3. Are any power lines disconnected?
4. Are any of the systems wires and cables broken or shorted?
If the system checks did not reveal the source of the problem, try to
isolate the problem from the symptoms using the tables on the
following pages.
Troubleshoot from
symptoms.
Содержание Sysmac CJ Series
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Страница 2: ...CJ1W TC Temperature Control Units Operation Manual Revised December 2005...
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