Option: Heater burnout alarm
5
(1)
This alarm is not available for detecting heater current
under phase control.
(2) Use the current transformer (CT) provided, and pass one
lead wire of the heater circuit into the hole of the CT.
(3) When wiring, keep the CT wire away from AC sources
or load wires to avoid the external interference.
(Fig. 4-3)
CT input Terminal
Power
supply
Heater
CT
(11)
(12)
5. Setup
Wire the power terminals only. After the power is turned on, the sensor input characters and temperature
unit are indicated on the PV display and the input range high limit value is indicated on the SV display for
approximately 3 seconds. (Table 5-1)
(If any other value is set during the scaling high limit setting, the set value is indicated on the SV display)
During this time, all outputs and the LED indicators are in OFF status.
Control will then start and the input value will be indicated on the PV display and main setting value (SV)
will be indicated on the SV display. (While control output OFF function is working,
is indicated on
the PV display.)
(Table 5-1)
Sensor input
PV display SV display
PV display
SV display
K
J
R
S
B
E
T
N
PL-
C (W/Re5-26)
Pt100
JPt100
4 to 20mA DC
0 to 20mA DC
0 to 1V DC
0 to 5V DC
1 to 5V DC
0 to 10V DC
Scaling high
limit value
Scaling high
limit value
