REXROTH EcoDrive Cs Project Planning Manual page 52

5-4
Electrical Connections
Meaning
mains filter
transformer
magnetic contactor
braking resistor
voltage supply of holding
brake
encoder cable
motor cable
RS232 cable
master communication
Note
Is used for radio interference suppression
When the mains voltage is higher than 240 V you must use a transformer (e.g.
autotransformer) to reduce the voltage
Switches the supply voltage of the motor on or off.
From the input of the magnetic contactor the lines for the control voltage are branched off.
L1-conductor at L1C and N-conductor at L2C.
By connecting an external braking resistor a derating of the continuous DC bus power can
be prevented.
Connection is realized at RB1 and RB2.
If you do not use any external braking resistor, the RB2 and RB3 connections must be
jumpered.
The braking resistor is available as an accessory.
If a motor with holding brake is used, the voltage supply of the holding brake must be
realized externally.
The holding brake is connected at the X5_3 interface (see page 5-18).
Data for the holding brake: see chapter "Holding Brake" on page 8-29
If a motor with encoder is used, an encoder cable must be connected to the X4 interface.
The encoder cable is available as an accessory.
The motor cable contains:
•
the lines for connecting the motor (U, V, W, ground)
•
the line with ring cable lug for connecting the cable shield to the ground connection of
the drive controller
•
the separately shielded lines including connector for connecting the holding brake to
the X5_3 interface (BR+, BR-)
The motor cable is available as an accessory.
The RS232 cable is used to connect a PC to the drive controller.
The RS232 cable is available as an accessory.
Depending on the design of the drive controller, one of the following master
communications can be used:
•
SERCOS
•
DeviceNet
•
PROFIBUS-DP
•
CANopen
Fig. 5-5: Notes on the schematic overall connection diagram
Rexroth EcoDrive Cs Drives
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