10310/1/1 | Honeywell Earth leakage detector

EARTH LEAKAGE DETECTOR CCThe 10310/1/1 module is an earth leakage detector (ELD) for 24 Vdc systems. It has a manually operated self-test and earth connection monitor (switch 2 in ‘TEST’ position).The system may include 48 Vdc and/or 60 Vdc supplies with a common 0 V railThe ELD module connects earth level with –12 Vdc (referenced to the0 V connection of the 24 Vdc supply). This connection is:• continuous (switch 1 in ‘DC’ position), or• interrupting at 1 Hz (switch 1 in ‘1 Hz’ position), or• interrupting at 0.25 Hz (switch 1 in ‘1/4 Hz’ position).With switch 1 in the ‘1 Hz’ or ‘1/4 Hz’ position, the green ‘MODE’ LEDon the module front flashes at the selected connection frequency.Switch 1 is normally used in the ‘DC’ position.The ‘1 Hz’ position should only be used to accommodate for solenoidsor relays that could stay energized by the negative earth voltage.The ‘1/4 Hz’ position can be used for locating earth faults. Locatingearth faults requires a current clamp (e.g. the C37 clamp from ChauvinArnoux) and a voltmeter (200 mV AC range).