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Carlo Gavazzi Ltd.

RGC2, RGC3

RGC2, RGC3 DS ENG

05/10/20

RGC..M Mode of Operation (continued)

SSR Open Circuit:

This alarm is issued when either one of the poles or all 3 poles do not switch ON within 250 ms when control voltage is

applied. This alarm type is identified by 4 flashes of the red LED. In the case of an open circuit on only 1 pole the load will

switch on 2 phases. The alarm output remains active (with control ON) until the alarm condition is removed.

Mains Supply (L1, L2, L3)

Load Current, I1

Load Current, I2

Load Current, I3

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)

Alarm Output, NO (11-14)

Alarm Output, NC (11-12)

Note 2

Note 2

Note 2

Note 1

Normal

Opera�on

SSR OFF

SSR open circuit

condi�on on pole L1-T1

(>250 ms)

SSR open circuit

condi�on on pole L2-T2

(> 250 ms)

SSR open circuit

condi�on on pole L3-T3

(> 250 ms)

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.

Note 2: Yellow LED and Auxiliary output is OFF if all the loads connected to the 3 poles T1, T2 and T3 are missing.