Compac ComTank Монтажный лист - Страница 10

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Electrical Preparation

Compac Industries Ltd.

The ComTank control unit requires its own wiring from the power supply. Power and

communication cables must meet or exceed local regulation requirements.

If no local regulations exist, we recommend as a minimum:

Power: 3 core 2.5 mm

Steel Wire Armour (SWA) cable

Comms (standard current loop): 2 core 1.5 mm

The length of the communications cable must not exceed 100 metres.

The power output from onsite generators can cause power spikes that may damage

electrical components within the cabinet. When connecting to sites powered by

generators, please take the following precautions:



Install a power conditioner. Although generators are fitted with power

regulators, most are not filtered sufficiently for powering sensitive electrical

components. We recommend installing a commercial power conditioner

and/or UPS between the generator and the unit.



Starting up. Before starting a generator, make sure the power to the unit is

turned off.



Start the generator, let the generator reach stable operating speed and wait

30 seconds before reconnecting the power to the unit.



For units where the generator starts and stops on demand, install a delay

timer or PLC to automatically isolate the unit until the operating speed and

consistent power output is achieved.



Isolate the unit before shutting down the generator.

Page 10

Precautions if Using Generator Power

Steel Wire Armour (SWA) cable