00197471-03_Service Manual Internal WPC5_6, EN_01-2019.pdf - 第68页
Service Manual In ternal WPC5 / WPC6 Page 3- 68 ➢ Remove all cable fixtures (cable ties etc.) an d disconnect all cables a nd plugs from the power supply unit. ➢ For connection detai ls and complete circ uit diagrams, …
Service Manual Internal WPC5 / WPC6
Page 3-67
3.6.5.4 Replacing the Complete Power Supply Unit
Spare Part
• WPC5 power supply unit [03072955-xx]
• WPC6 power supply unit [03056701-xx)
Overview
The power supply assemblies (1), such as the transformer, relays and contactors, inrush current
limitation board etc. are fitted on an mounting plate (2) and can be removed as a complete unit.
The mounting plate is fixed with 4 screws to the WPC frame:
• 2 x side, front (3)
•
1 x on frame, left side (4)
•
1x on frame, right side - in cable duct (6)
Removal
➢ To gain better access to the power supply unit, dismantle the side covers and, if necessary,
the front cover. See section.
➢ Check whether all cables are labeled.
➢ Make sure that you are able to correctly assign all cables and plugs again. Where
necessary, label cables, plugs and connections for easier reconnection later.
DANGER
Voltage at cable to the main switch
When the WPC power cable is connected and the main switch has been turned off,
voltage is still present at the cable to the main switch, at the line filter and at the terminals
to the main switch.
Disconnect the WPC from the power supply.
Service Manual Internal WPC5 / WPC6
Page 3-68
➢ Remove all cable fixtures (cable ties etc.) and disconnect all cables and plugs from the
power supply unit.
➢ For connection details and complete circuit diagrams, please refer to the following
documentation:
➢ Detailed circuit diagrams [00196627-xx] German/English
➢ Loosen the 4 fastening screws (3), (4) and (6).
➢ Disconnect the ground terminal (5) from the mounting plate of the power supply unit.
➢ Remove the mounting plate with the complete power supply unit from the WPC, by pulling
the power supply unit out to the side.
CAUTION
! Heavy weight of the power supply !
When pulling out the mounting plate, make sure you always provide support from below as the
transformer is very heavy and the plate could bend if support is not provided.
➢ The power supply assemblies are now accessible for further service work, such as
replacement of the lines filter, rectifiers or transformers.
Strain relief on the power supply unit
(example of WPC6 shown)
➢ When pulling out the power supply (1),
take care of the strain relief.
Service Manual Internal WPC5 / WPC6
Page 3-69
3.7 Limit Switches, Sensors and Light Barriers
3.7.1 Indroduction
3.7.1.1 Overview
WPC5
Schematic location and position - top view WPC5
A = Feed axis; B = Tower (lift axis)
1
sensor WPTC available [03056853-xx]
6
Reference sensor, lifting axis
[03047278-xx]
2a/
2b
crash light barrier for normal components with LED
(see table on page 3-83)
7
Sensor "WPTC present in tower"
[03057841-xx]
3a/
3b
crash light barrier for high components
(see table on page 3-83)
8
Sensor "WPTC lock closed"
[03056854-xx]
19a/
19b
crash light barrier for very high components
(see table on page 3-83)
9
Reference sensor, feed axis
[03057837-xx]
4a/
4b
crash light barrier for feed axis, tower [03056927-xx]
13
Locking switch for door
5
Limit switch for lifting axis up [03047279-xx]/
limit switch for lifting axis down [03047280- -xx]
(fitted when lifting axis is down