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1. Stop the drive and do the steps in section
you start the work.
2. Open the door of the brake chopper cubicle and remove the shrouding.
3. Connect the resistor cables:
•
Connect the power cable between the brake chopper and the brake resistor. Note
the connection of the third conductor and the cable shield. See the connection
diagram.
•
Connect the power cables of parallel brake resistors as shown below.
Note: The cable between the chopper and the first resistor must be able to carry
the entire braking power. Provide adequate support for the cables below the chopper
and resistor units.
Chopper
R+
•
Connect the cable between the brake chopper cubicle and the resistor monitoring
circuit. See the connection diagram.
Factory installed brake resistors (option +D151):
•
Connect the cable between the brake resistor cabinet and a user-defined 230 V
AC power supply. See the circuit diagrams delivered with the unit.
•
Connect the cabling between the brake resistor fan control circuit and the brake
chopper cubicle. See the circuit diagrams delivered with the unit.
User-defined brake resistors:
•
Connect the possible additional cabling between the brake chopper cubicle and the
brake resistor cabinet. See the circuit diagrams delivered with the unit.
•
Make the possible user-defined connections to the brake resistor cabinet.
Electrical safety precautions (page 29)
Resistor
R–
R+
R–
Electrical installation 33
before
Resistor
R+
R–
11
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