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>>News Detailed

OP Fault Analysis
Source :    Release time:2014-01-17

OP is a terminal device for glass tempering furnaces controlled by operator so that it could control and monitor the tempering process during production. The operator may adjust technical parameters via OP related control screens or menus and store or call on saved technical parameters. Following basic information may help maintaining staff to judge possible failures on OP and enable them timely remove such failures.

When OP displays "#.### PLC ERROR" and the block displaying numerical value displays "#####" instead of numerical value, the problem may be due to no communication between PLC and OP. 

1. Check the adapter and its interfaces (check DP interface as well if two OPs); If the two indicators at the side of adapter flash, this means a normal state; 

2. Check whether the power supply of PLC is ok: check whether the DC24V of electric control cabinet is ok, otherwise solve the fault of power supply module according to circuit diagram. Following may be the reasons: 

1) AC220V power supply is not ok; 

2) DV24V wire is grounded. 

3. Check whether there are red and yellow indicators on. If there are ,  please timely contact LandGlass. 

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