5702269-C Installation 5-7
Pinnacle™ Plus+ 10 kW
Contactor Interlock
The CONTACTOR INTLK port, located on the rear panel, is a 9-pin, male,
subminiature-D connector (see Figure 5-3 on page 5-7). Before turning on output,
ensure that the interlock loop is closed.
Note: Avoid injection of RF or noise from any power cables.
To enable the Pinnacle Plus+ supply’s main contactor short together pins 3 and 4 on
the CONTACTOR INTLK port (through a cheater plug, external switch, or relay).
Pin 4 supplies the interlock system (string) with 18 V, and it can source 60 mA. Pin 3
can sink 60 mA, and the voltage on pin 3 and pin 4 should not exceed 20 V. Pins 1 and
2 on this port are feedback connections from a set of (normally closed) auxiliary
connectors on the main contactor.
Figure 5-3. Contactor interlock connector
Note: The mating connector, connector shell, and post screws are included in the
hardware kit that accompanied your Pinnacle Plus+ unit.
Connecting Input Power
All power supplies leave the factory with their input voltages identified on the rear
panel and on an enclosed test checklist. The Apex generator power supply provides
the following input voltages (depending on your unit configuration):
• 208 VAC (wye or delta connection)
• 230/400 VAC (wye connection only)
• 277/480 VAC (wye connection only).
All input voltages are three-phase, 50/60 Hz.
The Contactor interlock is not a safety interlock.
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