LNS Sprint 545 S2, Instruction Manual

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CHAPTER 4: ELECTRICS 4-17
SPRINT 545/565S2
4.2. Connection
4.2.1. Power supply
Voltage: 3 x 220-480 V, 50 / 60 Hz + Ground (± 10%)
Maximum current:
3 x 220 V = 3 A
3 x 480 V = 1.5 A
Before connecting, check to make sure that the voltage of the bar feeder corresponds to
the one provided by the lathe. The voltage of the bar feeder is indicated on the
identification plate.
In the case where the voltage supplied by the lathe does not match that provided for the bar feeder, the
following components must be adapted:
a) transformer T1
b) hydraulic pump motor
c) bar magazine motor
LNS bar feeders are equipped with their own thermal protection systems (breakers, thermal relays, fuses,
etc.). The power supply for the bar feeder should be connected to the output of a breaker mounted in the
electrical control box of the lathe (10 A max.).
For the wiring inside the lathe, the section of the cables should be at least 1.5 mm
2
.
4.2.2. Signals from the lathe to the bar feeder
Always refer to the electrical diagrams shipped with the bar feeder and placed in the electrical cabinet.

All the wires for the interface connections are numbered.

All LNS bar feeders are equipped with a + 24 V power supply.
a) 24 V dc power supply
Corresponds to the +24 V of the bar feeder. This power shall be used to connect the signals from the
lathe to the PLC.

All signals from the lathe to the PLC shall be powered by the +24 V of the bar feeder.

All signals from the bar feeder to the lathe shall be powered by the +24 V of the lathe.
For the other types of connections, please contact LNS S.A. or their local representative.
b) "EMERGENCY STOP" signal on the lathe XT8-XT9 (XT10-XT11)
This signal is part of the safety link (Emergency Stop circuit) on the bar feeder.
XT8-XT9 corresponds to the Emergency Stop signal of the lathe. If the circuit is open, the bar feeder will
go into an Emergency Stop mode.
When the lathe is in an Emergency Stop mode, or if the safety line of the bar feeder is interrupted, an
alarm will sound and the R1 relay of the bar feeder will be triggered (see description of the R1 relay,
below).