AB Quality GuardPLC 1600 Manual de instruções de instalação - Página 16
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GuardPLC™ 1600 Controllers
Temperature Tests
The temperature of the controller is automatically and continuously monitored. The
alarm is triggered by the temperature conditions described in the table below.
Operating Temperature
< 60°C (140°F)
60° C to 70°C (140°F to 158°F)
> 70°C (158°F)
return to 64°C to 54°C (147.2°F to 129.2°F)
return to < 54°C (129.2°F)
Troubleshooting with LED Indicators
Indicator
State
24V dc
On
Off
RUN
On
Flashing
Off
ERROR
On
Off
PROGress
On
Flashing
Off
FORCE
On
Flashing
Off
Publication 1753-IN001B-EN-P - March 2004
Condition
24V dc operating voltage present.
No operating voltage.
This is the normal status of the controller.
A routine, which has been loaded into the controller, is executed.
The controller processes input and output signals, carries out communication and
performs hardware and software tests.
The controller is in STOP mode and is not executing a routine.
All system outputs are reset.
STOP mode can be triggered by setting the Emergency stop system variable to TRUE
in the routine, or by direct command from the programming software.
The controller is in ERROR_STOP (see ERROR).
• A hardware error has been detected by the controller. The controller goes to
ERROR_STOP and the execution of the routine is halted. Hardware errors are
errors in the controller, errors in one or more of the digital input and output
modules, or errors in the counters.
• A software error in the operating system has been detected by the controller.
• The watchdog has reported an error due to exceeded cycle time.
All system outputs will be reset and the controller ceases all hardware and software
tests. The controller can only be restarted by a command from the programming
software.
No errors are detected.
The upload of a new controller configuration is in progress.
The upload of a new operating system into the Flash ROM is in progress.
No upload of controller configuration or operating system in progress.
The controller is executing a routine (RUN) and FORCE mode is activated by the user.
The controller is in STOP, but Forcing has been initiated and will be activated when
the controller is started.
Forcing is OFF.
Alarm
None (normal)
Warning ON
Main Alarm ON
Main Alarm OFF, Warning ON
None (return to normal)