Zanotti un0 010, Workshop Manual

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163
5.7 Power Supplies
Electronics and wiring
Rectifier
Function:
Rectifier converts alternating current(AC), which periodically reverses direction, into direct current(DC)
Battery
Specifications:
Tension 12V
Electrical Charge: 100Ah
Function:
Power Cab Command and starting system when unit is turned off.
Alarm: A15 - Low battery
KSF Phase Sequencer Relay
Function:
Power Cab Command and starting system when unit is turned off.
Specifications:
This device has A and B inside relays.
Contact Status Closing conditions
7-8 N.O. V Δ > 320V
12-10 N.C. L1 − 2 − 3
12-11 N.O. L1 − 3 − 2
Connections:
Contact Wire From/to
1 L1 Elc. Main
3 L2 Elc. Main
5 L3 Elc. Main
7 NE1012 J10-12 th
8 93 J8-7 th
10 55 K1
11 56 K2
12 94 FM1
Test:
Connect unit to electrical main and check which contactor, K1 or K2, has been
activated. Disconnect from electrical main and reverse 2 phase wires inside
main plug.
Reconnect and check that active contactor has changed.
Digital Input Label: Electric Standby Selected