F5 SERVICE MAUNAL.pdf - 第101页

SIPLACE 80S-20/F4 Service Manual 4 Power Supply Edition 01/96 4.3 Control Unit 4 - 15 4.3 Co ntrol Unit 4.3.1 Genera l The contr ol unit is loca ted at th e back of the SIP LACE machine in the m achine b ase (see Fi g. 4…

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4 Power Supply SIPLACE 80S-20/F4 Service Manual
4.2 Power Supply Unit Edition 01/96
4 - 14
SIPLACE 80S-20/F4 Service Manual 4 Power Supply
Edition 01/96 4.3 Control Unit
4 - 15
4.3 Control Unit
4.3.1 General
The control unit is located at the back of the SIPLACE machine in the machine base (see Fig. 4.1.1).
● Open the metal door of the control unit.
● In the top part of the control unit you will find power supply unit A26 with the associated voltage measure-
ment sockets (see Fig. 4.3.1).
4.3.2 Supply Voltages
● Switch the main switch of the machine on.
Power supply unit A26 supplies these direct voltages: + 5 V, + 12 V, – 12 V, + 15 V, – 15 V and 24 V.
● At the voltage measurement sockets measure the direct voltages listed here (see Fig. 4.3.1).
Fuse F1 is located in power supply unit A26 and protects against overload the 5 V voltage supply which is
routed to the gantries via the ribbon cable.
F1 is a 3.15 A fuse. Use the digital ohmmeter to check whether the fuse is okay.
NOTE
If automatic circuit-breaker F1 is defective this may result in faults in the limit switch loops (limit switch acti-
vated). When making detailed measurements or carrying out fault location in the terminal rails or circuits you
should refer to the relevant circuit diagrams.
4 Power Supply SIPLACE 80S-20/F4 Service Manual
4.3 Control Unit Edition 01/96
4 - 16
Fig. 4.3.1 Control unit - partial view of the front with power supply unit
To make measurements at the back of the control unit proceed as follows:
● Switch the placement machine off and disconnect it from the power supply.
● Undo the retaining screw of the control unit and pull out the control unit.
CAUTION
Q
Make sure you do not damage the cable or put tensile stress on the snap-in connections.
● If necessary, support the control unit on a stool.
● Reconnect the machine to the power supply. Switch it on and then carry out the measurements required
(see Fig. 4.3.2). You should comply with the safety instructions in Section 1.