The power unit contains redundant power converters, each converter dimensioned for 100% load. At least
one of the two incoming supplies must be connected to a UPS. The power unit supplies the equipment on
the engine with 2 x 24 VDC and 2 x 110 VDC.
Power supply from ship's system:
•
Supply 1: 230 VAC / abt. 1500 W
•
Supply 2: 230 VAC / abt. 1500 W
14.1.5
Cabling and system overview
Figure 14.3
UNIC C3 overview
Table 14.1 Typical amount of cables
Cable types (typical)
From <=> To
Cable
3 x 2 x 0.75 mm
2
1 x Ethernet CAT 5
Engine <=> Integrated Automation System
A
1 x 2 x 0.75 mm
2
1 x 2 x 0.75 mm
2
1 x 2 x 0.75 mm
2
14 x 0.75 mm
2
14 x 0.75 mm
2
Engine <=> Propulsion Control System
Engine <=> Power Management System / Main Switchboard
B
2 x 0.75 mm
2
Power unit <=> Integrated Automation System
C
2 x 2.5 mm
2
(power supply)
2 x 2.5 mm
2
(power supply)
Engine <=> Power Unit
D
4 x 2 x 0.75 mm
2
2 x 2 x 0.75 mm
2
3 x 2 x 0.75 mm
2
1 x Ethernet CAT5
Engine <=> Gas Valve Unit
E
3 x 2 x 0.75 mm
2
2 x 5 x 0.75 mm
2
Gas Valve Unit <=> Exhaust gas fan and pre-lube starter
F
2 x 2 x 0.75 mm
2
1 x Ethernet CAT5
Gas Valve Unit <=> Integrated Automation System
G
1 x 2 x 0.75 mm
2
Gas Valve Unit <=> Gas detection system
H
Product Guide Wärtsilä 34DF - 3/2012
117
Product Guide
14. Automation System
