30
If using two outputs in a heat/cool type control, please refer to
Appendix C for more details.
Relay
• Connecting a load to full capacity of the relay will shorten the relay
life, especially if it is operated at a rapid rate. To protect the output
relay, an external relay or a contactor should be used. If a higher
current rating is required, a solid-state relay driver type output is
recommended.
• Connect the load between the normally opened contacts of the relay.
This way, if power to the controller is disrupted, the output circuit
would open, preventing the load from running out of control.
• Set the proportional time cycle parameter, “
TC
” to 15 secs. or more.
(30 secs typical).
• Use of MOV circuit is recommended to protect the relay against
switching surges and to ensure the product’s long life. Connect it
between the contacts of the relay as shown in the example below.
Part No.:
MOV-100
(power supply voltage: 100V)
MOV-200
(power supply voltage: 200V)
CN4431
(8-pin)
CN4321
Z-Trap
Summary of Contents for CN4321
Page 33: ...32 SYSTEM WIRING DIAGRAMS Example 1 Example 2...
Page 45: ...44 Deadband Overlap...
Page 48: ...47 Table of Input Type Codes...
Page 50: ...49...
Page 53: ...52 Table of Alarm Action Type Codes CN4321...
Page 54: ...53 Table of Alarm Action Type Codes CN4431...
Page 59: ...58 Table of Output Type Codes...
