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Chapter 3 – Mechanical Installation
Mounting Inside
the ACS 603
3-4
The work inside the frequency converter should be carried out by a
qualified electrician only.
WARNING! Pay attention to the slowly discharging voltage of the
capacitor bank and the voltages that are connected from external
control circuits to the digital inputs and to the relay outputs.
WARNING! Do not touch the printed circuit boards. The integrated
circuits are extremely sensitive to electrostatic discharge.
Mounting instructions:
1. Stop the drive.
2. Switch off the power supply of the drive and all dangerous voltages
connected to the digital inputs and relay outputs. Lock the fuse
switch to the open position.
3. Wait for five minutes to ensure that the capacitors in the
intermediate circuit have discharged.
4. Open the front door of the cabinet.
5. Locate the position for the module (see Appendix D - Assembly
Drawings ).
6. If the module can be mounted inside the converter unit
(in ACS-603-0100-3/0120-5 and ACS 603-0120-3/0140-5,
there is room for one option module):
• Remove the front cover of the converter unit.
• Ensure that the mains cable, motor cable and capacitor bank
(UDC+ and UDC-) are not powered.
• Remove the two screws from the assembly plate.
• Fasten the mounting rail to its place using the two screws.
7. Push the module onto the rail. The module can be released by
pulling the locking spring with a screwdriver (see Figure 3-1).
Installation and Start-up Guide for NMBP-01
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