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Commander UCP 5000 / 5100 Series
4.2 Remote Status Indication
The Commander’s connectors J4 and J5 are intended for
remote indication — that is, the ability to drive a lamp or signal
input on some remote equipment which indicates that the
Commander is in the Power On mode.
Each connector is a dry contact, each is wired independently,
and each is rated up to 250 volts, and up to 4 amps.
4.3 Connecting Additional EPO Buttons
The Commander’s J3 connector is a 24 Vdc source to loop out to one
or more auxiliary EPO buttons. Each switch, if there is more than one,
would be wired in series or parallel as indicated in the diagram to the
right. There is no remote reset. For safety, there is only the one reset in
the system at the Commander panel.
N.O. Models — Shorting J3 pin 1 to pin 2 returns the 24 Vdc signal,
and creates an EPO active state.
N.C. Models — J3 requires a shorting jumper when no external
switches are used. Adding switches in series to break Pin1 from Pin 2
creates an EPO active state.
The voltage rating of connector J3 is a significant change from the legacy UCP 3500.
UCP 5000/5100 models use 24 Vdc, whereas UCP 3500 models use 20 Vac.
Internal
Power On
Pin 3 : Return
Pin 1 : Enabled
Pin 3 : Return
Pin 1 : Enabled
Marway UCP
End User Equipment
J4
J5
L
Shown is conceptually what’s inside the UCP, and a simplified example
of how to use the J4 and J5 connectors for auxiliary Power On signals.
Internal
EPO Active
Internal
24 Vdc
Pin 2 : EPO Return
Pin 1 : EPO Out
J3
Marway UCP
End User Equipment
N.O. Models
Internal
EPO Active
Internal
24 Vdc
Pin 2 : EPO Return
Pin 1 : EPO Out
J3
N.C. Models
Must be jumpered when
there are no external switches.
This diagram shows conceptually what’s inside the UCP,
and how to use the J3 connector to attach one or more
external EPO buttons.
