Motor Control Unit Familiarization; Fuses - Simrad SX90 - REFERENCE MANUAL REV D Reference Manual

Simrad SX90
Figure 44 Motor Control Unit familiarization
198

Motor Control Unit familiarization

During normal operational conditions, the two following
indicator lamps shall be lit:
• Indicator lamp
L1
is activated. This mean that the 3-phase voltage is applied
to the hoist/lower system, and that the three phases are
correctly connected with regard to the training direction of
the hoist/lower motor.
• Indicator lamp
L2
supply for the control electronic is operational.

Fuses

The Hull Unit is fused with two types of fuses located in the
Motor Control Unit.
A Internal 24 Vdc power supply
B Ethernet connector
• Fuse for internal power
(F301)
supply
• Terminal strip for AC mains
(E301)
input
• Hoisting contactor
(K301)
• Lowering contactor
(K302)
• Phase watch relay
(K303)
• Yellow indicator light
(L1)
• Green indicator light
(L2)
• Motor protecting switch
(S301)
• Hoist/lower selector
(S302)
• Hand crank with safety
(S303)
switch
• Connector for hull unit limit
(P302)
switches and rotation sensor
indicates that the phase watch relay
indicates that the internal +24 Vdc power
K303
307670/D