Maintenance
128
Replacing supply and inverter modules
Note: Performing this action requires the following accessories that are not included
with the drive as standard:
• Winch (order code: 68847826)
• Installation stand (order code: 68847711).
WARNING! Follow the instructions in chapter Safety instructions. Ignoring the
instructions can cause physical injury or death, or damage to the equipment.
WARNING! When re-attaching coolant hoses, do not overtighten
the outer nuts of the unions – leave 2 to 3 mm of thread visible.
Overtightening will break the hose.
1. Disconnect the drive from the power line.
2. Open the module cubicle door and remove the shroud to gain access to the fan.
3. Close the inlet (a) and outlet (b) valves of the cubicle, and drain the cooling
circuit (see Draining the internal cooling circuit on page 140. Note: Drain (d) and
bleed (c) valves have locking handles. Release the mechanism before turning.
4. Fasten the right-hand side support of the winch to the support frame of the
cubicle (four bolts). Fasten the left-hand side support of the winch to the support
frame of the cubicle (four bolts). Note: Position the guide pins of the supports in
the holes of the cabinet frame before tightening the bolts. For detailed
instructions see Installing the winch on page 132.
5. Install the winch: Lead the crossbeam through the left and right winch support
and the winch body. Lock the crossbeam with two locking pins (a).
6. Open the swing-out frame: two screws on the left-hand side, two on the right.
7. Open the locking of the auxiliary hinge of the swing out frame to allow the frame
to open fully: one screw on top (a), one on bottom (b).
8. Decouple the cooling circuit inlet pipe from the module: Unscrew the locking nut
until fully open and pull the pipe out.
9. Decouple the cooling circuit outlet pipe from the module: Unscrew the locking
nut until fully open and pull the pipe out.
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