REXROTH RD 500 RD42, Operating Manual

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3-6
Electrical installation RD 500 RD42
DOK-RD500*-RD42*******-IB03-EN-P
3.6 Supply module connection
Power terminal X1
Terminal
X1 Designation
PE Protective conductor
U1
V1
W1
Supply connection via the external line filter
3 phases L1, L2, L3
Fig. 3-4: Power terminal X1
Power terminal X2
Terminal
X2 Designation
C DC link conn (double terminal)
D DC link connection – (double terminal)
Fig. 3-5: Power terminal X2
Power terminal X3
Terminal
X3 Designation
121
122
Checkback signal contact (NC contact) from the main contactor
U1
V1
W1
Control supply voltage, 3-ph. 380 V – 500 V AC
Fig. 3-6: Power terminal X3
Please observe the following when connecting the control voltage:
Depending on the control voltage, the power supply transformer must be
changed-over. The power supply transformer T1 has 3 connections:
380/400 V, 460 V and 500 V; also refer to Fig. 1-2: Circuit principle RD42.
You can see the position of the power supply transformer from Fig. 3-7:
Terminal diagram for size Classes D to F.
The control voltage must be externally fused using 2A slow-acting fuses.
When connecting the control voltage, the phase rotation and phase
position must be the same as the three-phase system at terminals X1,
power input U1,V1,W1.