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5.3 Selection criteria
The following criteria must be considered when selecting the connection diagram:
• Motor to be operated with
– one line voltage (e.g. 400 V, 50 Hz) or
– two line voltages (e.g. ∆/Y 230/400 V 50 Hz or YY/Y 240/480 V 60 Hz)
• Motor designed for one or two speeds
• Common or separate power supply to motor and brake
• Control module selected:
– GE for normal excitation
– GS for high-speed excitation
– GP for normal excitation for pole-changing motors
– GF for pole-changing ZBF motors up to size 100
• Switch-off method:
– in the DC circuit for short operating times (e.g. hoist drives, positioning drives)
– in the AC circuit for medium operating times (e.g. travel drives, conveyor
belts)
– in the motor circuit for stopping the motor in a non-critical time.
Refer to the following flow charts and selection tables.
Note:
• The motor and brake of inverter-fed drives must have separate
power supplies.
• SE modules must not be used with inverter-fed drives.
•
Connection diagrams
– Connection diagram selection (flow chart) for line and inverter-
fed drives and related tables → section 5.5.
– Connection diagrams → Section 5.6
Diagrams shown in ascending ident. number order
– Connection diagram arranged in the motor terminal box lid.
•
Condition when supplied for inverter operation:
If the motor has been ordered for inverter operation, GE or GS
brake control modules are NOT connected to the motor winding.
The brake control module must be provided with a separate AC
power supply.
•
Designation on the terminal board
The terminal designations used in the connection diagrams are
printed on the white motor connecting leads. The designations on
the terminal board in the motor only apply to single-speed motors
with 6 connecting leads.
21
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