Download Cable Specification for +/- 12 V Power Supply Used in Electric

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Cable Specification for +/- 12 V Power Supply Used in Electric Drives and Power-Pole Boards
The electric drives inverter board uses a +/- 12V power supply to power the current/voltage sensors.
This power supply is also used in the power-pole board for the current sensors and PWM
generation/gate drivers.
The connector on the boards for this input is a circular 5-pin DIN connector (J90 on both the drives and
power-pole boards). Elpac Power Systems power supply WM072-1950-D5 with +/-12 V output was
earlier used. However, this power supply is no longer in production. Elpac WM063-1950-D5 or SL Power
SW301MA0012F01 has been identified as a suitable replacement. These power supplies, however, are
triple output supplies with 5V and +/-12 V output voltages. The pinouts on these power supplies are
different than the earlier one also.
A simple crossover cable needs to be made in order to make WM063-1950-D5 or SW301MA0012F01
compatible with the electric drives and power-pole boards. The specifications and the parts required for
this cable are outlined here.
Figure 1: Pin numbers (connector side)
Pinouts
WM072-1950-D5
PIN
1
2
3
4
5
SIGNAL COM N/C +12 V COM -12 V
WM063 -1950-D5 or SW301MA0012F01
PIN
1
2
3
4
5
SIGNAL COM N/C +5 V -12 V +12 V
Parts Required for Cable
1. Circular 5-pin Male DIN Connector (Digikey Part Number: CP-1050-ND)
2. Circular 5-pin Female DIN Connector (Digikey Part Number: CP-1150-ND)
Cable Specification
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