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3-22
Installing the Converter
590+ Series DC Digital Converter
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 single phase 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 – PCB Reference 466701 (Frames 4 & 5)
This power board (printed with the above number) can be altered for use with either an internal
or external motor field supply:
Internal Motor Field (default for this board)
Terminals F+ and F-, 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 FL1 and FL2 are not
energised. The internal motor field supply is fused by the 30A fuses FS1 and FS2.
External Motor Field Connections
Terminals FL1 and FL2 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 field supply and
prepares terminals FL1 and FL2 for the
external ac supply connection.
You should provide suitably rated
external, fast-acting semi-conductor
fusing, to a maximum of 30A.
Re-Wiring Procedure
WARNING!
Isolate all power to 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
red
link from the Faston connector “F2” and connect it to the staging post “F3”
nearby (EX L1).
3.
Remove the
yellow
link wire from the Faston connector “F5” and connect it to the staging
post “F6” nearby (EX L2).
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 single phase transformer.
L1 must be in phase with FL1, and L2 must be in phase with FL2.
The external field supply can now be connected and power restored to the drive.
F1
F13
F14
F3
F6
F4
F2
F5
FL1 FL2
F+
F-
yellow
red
EX A- EX A+
EX L1
EX L2