Parker 590 series - Power Board - PCB Reference 385621

Installing the Converter 3-15
590D DC Digital Converter - HA467078
Power Board - PCB Reference 385621
This power board (printed with the above number) can be adjusted for use with an internal or
external motor field supply:
Internal Motor Field (default for this board)
Terminals D3 and D4, the motor field outputs, are energised when the 3-phase supply to
L1/L2/L3 is energised and the internal motor field is used. Terminals D1 and D2 are also
energised, but must not be used. The internal motor field supply is fused by the 20A fuses, FS2
& FS3.
External Motor Field Connections
Terminals D1 and D2 on the Power Board can
be used for an external ac supply connection
for the Motor Field Supply.
A simple re-wiring procedure disconnects the
internal motor field supply and prepares
terminals D1 and D2 for the external ac
supply connection.
You should provide suitably rated external,
fast-acting semi-conductor fusing, to a
maximum of 20A.
Re-Wiring Procedure
WARNING!
Isolate the drive.
1. Loosen the control board fixing screws (2 off) and position the control board to allow access
to the power board.
2. Remove the yellow link wire from the Faston connector to the left-hand side of terminal D1
and connect it to staging post “F8”, located on the left of the board.
3. Remove the red link from the Faston connector at the mid-point between terminals D1 and
D2 and connect it to staging post “F16”, located on the left of the board.
Caution
When using an external ac input it is important to have the correct phase relationship on
the terminals. The supply must be derived from L1 (Red) and L2 (Yellow) phases directly
or indirectly through a transformer.
L1 must be connected to D1, and L2 connected to D2.
The external field supply can now be connected and power restored to the drive.
POWER BOARD AH385621
D1 D2
D3 D4
Red
F8
F16
Yellow