West Control Solutions MRC 8000 - Manual (Page 65)

65
If the relay is connected to a
high impedance AC device,
the snubber network used to
protect the relay contact may
cause the output to appear
to be activated when the
relay is off. To cure the
problem, cut the snubber
resistor for the output that is
being affected. Resistor Relay
R1 Relay A
R2 Relay B
R3 Relay C
R4 Relay D
FIGURE A-2 - SPST RELAY/SSR DRIVER OUTPUT BOARD
TB6 TB7
TS1 R1 TS2 R2 TS3 R3 TS4 R4
C1 C2 C3 C4
K1 K2 K3 K4
P7
(rlyA) (rlyB) (rlyC) (rlyD)