CHQ-PCM-DIN(SCI) Instructions

2-3-0-1156/ISS2/OCT11 Connection Details The module has been designed for easy installation and contains two connector blocks for termination of the field wiring; refer to Fig. 4 (right) for correct connection details. A – EOL Monitoring Resistor, 10 K Ω B – Operational Resistor, 470 Ω (volt-free contact) Setting the Fault Monitoring The general purpose inputs on the CHQ-PCM(SCI) are fully monitored for open and short circuit, however, if the monitoring facility is not required then they can be disabled by the two-way DIL switch, refer to the table below: Fig 4 CHQ MODULE SWITCH 1 DOWN INPUTS 1 & 2 MONITORED In Non-Monitored mode * , the unit ignores open or short-circuit condition – but still requires 470 Ω to activate. SWITCH 1 UP INPUTS 1 & 2 NOT MONITORED SWITCH 2 DOWN INPUTS 3 & 4 MONITORED SWITCH 2 UP INPUTS 3 & 4 NOT MONITORED DIN MODULE SWITCH 1 DOWN INPUTS 1 & 2 NOT MONITORED SWITCH 1 UP INPUTS 1 & 2 MONITORED SWITCH 2 DOWN INPUTS 3 & 4 NOT MONITORED SWITCH 2 UP INPUTS 3 & 4 MONITORED