User Manual

63
Characters,
Factory Default
Setting Item, Function, Setting Range
and CT2
current value are
alternately
indicated in the
PV Display.
Heater burnout alarm 2 value
• Sets the heater current value for Heater burnout alarm 2.
Available only when using 3-phase.
Corresponds to [Heater burnout alarm 2 value] in Initial setting mode.
Characters and CT2 current value are indicated alternately in the PV
Display.
When OUT1 is ON, the CT2 current value is updated.
When OUT1 is OFF, the unit memorizes the previous value when OUT1 was ON.
Upon returning to set limits, the alarm will stop.
• Setting range:
20.0 A: 0.0 to 20.0 A
100.0 A: 0.0 to 100.0 A
Setting to 0.0 disables the alarm.
Available only when Heater burnout alarm (C5W, EIW, W options) is ordered.
Loop break alarm time
• Sets the time to assess the Loop break alarm.
Corresponds to [Loop break alarm time] in Initial setting mode.
Refer to ‘Loop Break Alarm’ on p.50.
• Setting range: 0 to 200 minutes
Setting to 0 (zero) disables the alarm.
Loop break alarm span
• Sets the temperature to assess the Loop break alarm.
Corresponds to [Loop Break alarm span] in Initial setting mode.
Refer to ‘Loop Break Alarm’ on p.50.
• Setting range: 0 to 150 ( ), 0.0 to 150.0 ( )
DC voltage, current inputs: 0 to 1500 (*1)
Setting to 0 (zero) disables the alarm.
(*1) The placement of the decimal point follows the selection.
[OUT1 rate-of-change]
For Heating control, if PV is lower than SV, the output is generally turned from OFF to ON as shown in
(Fig. 7.2-2).
If OUT1 rate-of-change is set, the output can be changed by the rate-of-change (Fig. 7.2-3).
This control is suitable for high temperature heaters (which are made from molybdenum, tungsten or
platinum, etc., and used at approx. 1500 to 1800 ) which are easily burnt out from turning on
electricity rapidly.
Usual output Output when Output rate-of-change is set
(Fig. 7.2-2) (Fig. 7.2-3)
20%/sec 10%/sec
5 sec
OFF
100%/sec
1 sec 10 sec
ON