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Preliminary Guidelines
4.6.3 Connecting the Power Equipment
To connect the power equipment, proceed as follows:
• External Mains
• Uninterruptible Power Supply (UPS)
Note: If there is any doubt concerning grounding, ask for a ground test, which must be
4.6.4 Grounding
Proper system grounding is an extremely important part of the system installation.
As with the AC power, the grounds for all system components should return to the same
circuit breaker panel. This helps you assure a common ground throughout the system, which is
necessary for protection of the RS-485 data loop circuitry.
Grounding for all system devices should be wired to the breaker panel ground bus bar, which
in turn should be grounded to a ground rod. A conduit ground does not provide sufficient
grounding. It is recommended that the neutral and ground bus bars be bonded together when it
is not prohibited by local codes.
4.7 Wiring the Peripherals
The following describes the wiring procedures for Islander Prime peripherals.
4.7.1 Pump Wiring
Islander Prime is capable of driving pump motors through an additional external relay. A
separate circuit breaker should be supplied for each dispenser.
Note: The protection in communication circuits is part of the operator's responsibility.
To wire the pump, proceed as follows:
Wire one mains AC cable from the UPS MCC to the pump enclosure, intended for the pump
1
motor.
• For an electronic pump, wire RS-485/Current Loop/Tokheim communication cable from
2
Wire one 0.4-inch (10-mm) ground cable from the mains ground connection to the pump
chassis.
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Connect Mains power to the Mains Circuit Control Box (MCC).
1
Wire one 0.4-inch (10-mm) ground cable from the mains ground connection to the
2
MCC.
Connect the MCC to the UPS.
performed by a qualified electrician.
Islander Prime to the pump head.
MDE-5411A ForeHB Islander Prime Installation Manual · October 2018
4.7 Wiring the Peripherals
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