Harken HYDRO 2 Power Unit - Manual (Page 14)

14 Hydro 2
Electrical Installation
Connect HPU to Battery
Follow these steps to connect HPU to Battery:
1. A 250-300A circuit breaker or fuse (not supplied) must be installed between HPU motor and battery. Prior to making connection,
remove fuse element or verify circuit break is in OFF position.
2. Connect positive lead from fuse to open 8 mm terminal stud contactor on solenoid switch.
3. Connect from fuse to battery.
4. Connect negative lead from 10 mm stud on motor case to common terminal or (-) battery terminal.
CAUTION! DO NOT close the circuit with the fuse or circuit breaker until the Commissioning phase.
Connect HPU Motor and Valves to ECB
Each valve operates using a three-wire cable bundle with an M12
connector.
Notice: Valve wires supplied are 5M. These can be extended with
a 16-gauge wire if needed. (Refer to Wire Sizing Table, pg. 12.)
Follow these steps to connect HPU motors and valves to ECB:
1. Join mating ends of Deutsch Connector to connect the ECB
to the HPU motor.
2. Pass valve wires through gland into the ECB case.
3. Connect valve wires per Valve Wiring Table at right. Valve wire
sets connect to terminal strip labeled SWXA, SWXB and GND(–).
(See photo, pg. 13).
4. Connect valve cable to M12 connector on valve.
Note: Align key and keyway on connector.
Valve Black White Blue
1 SW1A SW1B Ground
2 SW2A SW2B Ground
3 SW3A SW3B Ground
4 SW4A SW4B Ground
5 SW5A SW5B Ground
6 SW6A SW6B Ground
7 SW7A SW7B Ground
8 SW8A SW8B Ground
9 SW9A SW9B Ground
Valve Wiring Table
White (N/C) Port A or B
Black (N/C) Port B or A
Blue (–)
Green/Yellow (Not Used)
Brown (Not Used)
1
2
4
3
5