Pinnacle Systems MG - Manual (Page 12)

Auxiliary Output Contact (K3)
Description: K3 relay uses the same driver circuitry
as the K1 relay, but has its own relay checking circuitry.
This means that you should never use the K3 relay in
series with the K1 relay unless you use K2 in another
stop circuit.
Usage: K3 has both N.O. and N.C. outputs off the
same common. This can be used in conjunction with
the standard output contacts. Never just use K3 by
itself or with K1.
N.O. contact is closed when the curtain is GREEN.
N.C. contact is open when the curtain is GREEN.
Cincinnati Interface
Description: Provided to allow an external device to
determine if the light curtain is still capable of shutting
down the safety control circuit. The Cincinnati Interface
allows an external device to override the light curtain,
initiate a RED condition, and open up the standard
output relay contacts.
Application: Cincinnati Press, PLC
Usage:
Type1: The press interface provides 24VDC when it
wants the guard to de-energize (go RED). Connect this
press signal to Terminal #5 and Ground to Terminal #6.
Type 2: The press interface provides Ground when it
wants the guard t de-energize (go RED). Connect this
signal to Terminal #6 and attach nothing to Terminal #5.
You must install the jumper J8 (bottom board).
(see Installation Procedures, “Controller Module Setup”)
External Relay Check
Description: Allows the MicroGuard to monitor a pair
of external relays in series using the external relays
secondary set of DRY contacts, provided that they are
N.C. and captive contacts. This captive or force-guided
contact will maintain the identical position as the primary
set of contacts on the external relays, except that the
secondary set of contacts are wired up to signal the
reverse of the primary. (i.e., primary are N.O., secondary
are N.C.) The circuit looks for both closure and opening
of the external relay contacts. This system is the only
safe External Relay Check.
Application: Monitoring external relay contacts for
shorts or opens.
Usage: Follow Figure 1 for wiring your external relays.
You must first activate this feature by using the spare
jumper and placing it across J19 labeled EXT (door
board). This system requires that both N.C. relay
contacts be wired in series then back to the terminals
inside the Controller Module. Relay contacts must be
DRY contacts. Both external relay contacts must be
closed when the light curtain is RED within .25 sec or an
Figure 1: Wiring External Relays
Standard Features
Metal Box Controller Module
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