26

Carlo Gavazzi Ltd.

RGC2, RGC3

RGC2, RGC3 DS ENG

05/10/20

RGC..M Mode of Operation (continued)

SSR Short Circuit:

This condition is detected when the SSR output remains ON for more than 250 ms without control voltage. Upon this alarm,

an attempt is made to switch OFF the SSR output but this may not be possible in case of a damaged SSR output(s). Alarm

indication is given by 3 flashes of the red LED (same as the load loss alarm indication). In case of a self recovery, the SSR

will automatically reset.

During an SSR short circuit condition, the SSR output is ON unintentionally. In this case the auxiliary output does not work

in synchronisation with the SSR output.

Mains Supply (L1, L2, L3)

Load Supply (T1, T2, T3)

Load Current

Auxiliary Output, NO (21-24)

Auxiliary Output, NC (21-22)

Supply Voltage (Us)

Control Voltage (A1, A2)

Green LED (Control & Supply)

Yellow LED (Load status)

Red LED (Alarm LED)

Alarm Output, NO (11-14)

Alarm Output, NC (11-12)

Normal

Opera�on

SSR OFF

Normal

Opera�on

SSR ON

SSR short circuit condi�on

during control OFF

(>250ms)

Note 1

Note 1: For the AC external supply versions (RGC..A..A), the Auxiliary output, NC (21-22) will be closed only when the

external supply Us is present.