Installing the Converter 3-9
590D DC Digital Converter - HA467078
External AC Field (D1, D2)
If an external field supply is required to
the controller for application reasons,
connect this supply to terminals D1 and
D2. The magnitude of this voltage is
determined by the desired field voltage.
The supply must be protected externally
with suitable fuses. Always derive the
supply from the Red and Yellow phases
of the main power supply, with the Red
phase connected to terminal D1 and the
Yellow phase to terminal D2.
IMPORTANT: It is important that connection of the controller and the external field supply is consistent
when using an externally supplied field regulator. 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.
To change the controller from an internal to an external field type refer to
30
HMotor Field
Connections, page 3-
31
H14.
H6 D1 D2 D7 D8 D6 D5 L1 L2
AC FIELD
SUPPLY
**
USE INTERNAL
FIELD CONNECTION
FOR EMC COMPLIANCE
*
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