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Electrical connection
6.7 Final checks
Table 6-5
Maximum voltage peaks at the motor terminals for line (DOL) motors, converter operation possible
Rated motor voltage
V
≤ 500 V
Table 6-6
Maximum voltage peaks at the motor terminals for motors specifically designed for converter operation (e.g. VSD
10)
Rated motor voltage
V
≤ 500 V
> 500 V to 690 V
6.7
Final checks
Before closing the terminal box/terminal base of the machine enclosure, check the following:
● Establish the electrical connections in the terminal box in accordance with the information
in this documentation.
● Maintain the air clearances between non-insulated parts as described in Chapter Minimum
air clearances. (Page 53)
● Avoid protruding wire ends.
● In order not to damage the cable insulation, freely arrange the connecting cables.
● Connect the machine corresponding to the specified direction of rotation.
● Keep the inside of the terminal box clean and free from trimmed-off ends of wire.
● Ensure that all seals and sealing surfaces are undamaged and clean.
● Correctly and professionally close unused openings in the terminal boxes. Observe the
information in this documentation.
● Observe the information on torques in this documentation.
See also
Tightening torques for screw and bolt connections (Page 111)
60
Maximum peak voltage at the motor terminals
Û
Û
Û
phase-to-phase
phase-to-ground
V
pk
1500
900
Maximum peak voltage at the motor terminals
Û
Û
Û
phase-to-phase
phase-to-ground
V
pk
1600
1000
2200
1000
dependent on the rise time t
max
Rise time t
V
pk
1100
0.5
900
0.1
dependent on the rise time t
max
Rise time t
V
pk
1400
0.5
1000
0.1
1800
0.5
1000
0.1
1PC134, 1PC136 crane motors SH 132 ... 315
Operating Instructions, 02/2019, A5E43212221A
r
DC link U
r
μs
V
750
r
DC link U
r
μs
V
750
1080
DC
DC
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