Raymarine Hydraulic Linear Drive Installation Manual page 14

Hydraulic Linear Drive - Installation Guide
Table 2: Recommended cable sizes
Cable length
(pump to course computer)
Type 2 drive 12 V
up to 5 m (16 ft)
up to 7 m (23 ft)
up to 16 m (52 ft)
Type 2 drive 24 V
up to 3 m (10 ft)
up to 5 m (16 ft)
up to 10 m (32 ft)
up to 16 m (52 ft)
Type 3 drive 12 V
up to 5 m (16 ft)
up to 7 m (23 ft)
up to 16 m (52 ft)
Type 3 drive 24 V
up to 5 m (16 ft)
up to 7 m (23 ft)
up to 16 m (52 ft)
Connect the pump and ram to the course computer:
1. Measure the distance of cable run from the pump and ram to the
course computer:
• use Table 2 to identify the appropriate motor cable sizes
• use at least 1.5 mm
2. Join these cables to the ones on the pump and ram using
appropriate electrical connectors or junction boxes at the correct
power rating.
Note: To meet current EMC legislation, you must NOT untwist the
pump cables, and you must NOT remove the suppression ferrite.
3. Route the cables back to the course computer, taking into account
the EMC installation guidelines (page 6).
4. Connect:
the cables from the pump to the MOTOR terminals on the
•
course computer (see Figure 9): at this stage you can connect
either motor cable to either terminal. You will check these
connections after installing the rest of the autopilot system.
the cables from the hydraulic ram to the CLUTCH terminals on
•
the course computer (see Figure 9): brown (+) and blue (-)
Cable gauge
(AWG)
10
8
6
12
10
8
6
8
6
4
10
8
6
2
(16 AWG) copper cable for the clutch
13
Copper area
2
(mm )
6
10
16
4
6
10
16
10
16
25
6
10
16