TC 816 Operation Manual
THERMON…The Heat Tracing Specialists
®
Operation Manual 0503 E TC 816
Page 27 of 42
4.2.2
Parameter P02:
HI-ALARM
This Parameter is:
•
Valid for Temperature Controller Zones
- Zones 1 through 16
- unit in: °C or °F
•
Not valid for
Limiter Zones
•
Valid for Current Zones
- Zones 17 through 32
- unit in: 0,1 x A => value of 10 means 1 A
Measurement above the value set for parameter P02 triggers the respective zone
HI-ALARM
, this results
in:
•
tripping the appropriate
Hi
-alarm contact on the AF TPA Thermon Power supply module AC
•
the green
Hi
-LED on the AF TPA module
extinguishes
Adjustment thresholds: 0...630
Default value:
630
NOTE:
HI-ALARM
is not supervised when the reference set point in the circuit display is set to 0.
But
HI-ALARM
is supervised when operation mode (P06:
OP MODE
) is set to OFF. The rea-
son for this practice is that a faulty actuator (for instance short circuited) which is connected to the
output modules will cause high alarm and thus be detected.
4.2.3
Parameter P03:
DEV-ALARM
This Parameter is:
•
Valid for Temperature Controller Zones
- Zones 1 through 16
- unit in: °C or °F
•
Not
valid for
Limiter Zones
•
Valid for Current Zones
- Zones 17 through 32
- unit in: 0,1 x A => value of 10 means 1 A
As soon as the actual value of a zone deviates from the reference set point in the circuit display by more than
the value set for P03 the respective zone
DEV-ALARM
is triggered, this results in:
•
tripping the appropriate
Dev
-alarm contact on the AF TPA Thermon Power supply module AC
•
the
Lo
-LED on the AF TPA module
lights up red
Adjustment thresholds: 1...630
Default value:
15
NOTE:
DEV-ALARM
is not supervised when the reference set point in the circuit display is set to “0” or op-
eration mode (P06:
OP MODE
) is set to OFF.
