1
2
3
50/60Hz
4
5
6
7
8
Power
85 to 264 VAC
Thermocouple
Input
Heater (3A or less)
120V AC
L
N
CN4421TR-R1
Fuse
+
–
Relay Contact
Output
(250V, 1A)
Fuse
(250V, 3A)
23
4 to 20mA DC
• The output is a non-isolated analog signal used to drive a variety of
output devices such as SCRs and valve actuators.
• The load resistance must be less than 600
Ω
.
• Make sure the polarity is correct.
• The proportional time cycle parameter, “TC” is set to 0, and is not dis-
played on the programming menu.
Wiring Alarms
• Make sure the load does not exceed the rated capacity of the relay.
• Several types of alarm configurations can be programmed and does
not require a change in the wiring. Refer to parameters AL, AH, P-AH,
P-AL, P-An.
• For details on Heater Burnout alarm, please refer to Appendix D and
the Heater Burnout Alarm Setpoint parameter “Hb” in the program-
ming section.
System Wiring Diagram
Example:
