mm
/0/1/n1
1
mm
/0/1/n1
2
Then assign the output, OUT
Using the LCD:
where n1=1,2,3,4 and n2=1,2,3,4,5,6
Using RS232:
where n1=Parameter # and n2=1,2,3,4,5,6
4.10 Setting Output Control With Alarm
The TTC-1000 monitors two critical conditions: processor (DEVICE) and
temperature (TPROBE) and allows the user to control how each output reacts
when an alarm occurs. A DEVICE alarm occurs anytime the microprocessor
detects a failure in any of the peripheral hardware including the non-volatile E
memory, the real time clock, analog outputs, corruption of stored data and power
supply brown out.
The TPROBE alarm is generated anytime the processor is unable to obtain
reliable temperature information. This failure can be due to a discontinuity in the
leads connected to the temperature probe or with any of the internal circuitry
associated with the analog to digital conversion process. For a single probe
alarm condition, only temperature set point evaluation for that probe channel are
suspended until the alarm condition is cleared.
The TTC-1000 allows you to program how an output will react whenever there is
a DEVICE or TPROBE alarm. There are three (3) ways an output can react
whenever there is a DEVICE or TPROBE alarm:
1. Unchanged (UNCHG): the output remains as it was prior to the
2. Picked Up (PCKUP): the output picks up when alarm occurs.
3. Supervised (SUPVS): the output drops out when alarm occurs.
4. No action (NOACT): the output logic is not processed at all.
The TTC-1000 output control default is UNCHG for each output.
Because of redundant top oil probe operation, the TTC-1000 will only invoke this
function for a failure under the following conditions:
Only one RTD probe named top oil.
Any RTD probe named winding.
where mm
=Parameter # and n1=1,2,3,4,5,6
1
where mm
=Parameter # and n1=1,2,3,4,5,6
2
, commanding cooling to OUT
n2
OUT
OUT
n2
n1
n1/0/0/n2
alarm.
68
as follows:
n1
V6.70 20131017
2
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