D20/D200
Installation and Operations Guide
GE Energy
994-0078-2.00-7 General
56
Full
Connections and Configuration
, continued
WESTERM
D20A: External
Loop Supply
For connections to an external power supply for current loop powered transducers,
use TB1-49 and TB1-99 on the WESTERM D20A:
Jumpers Z3 and Z4 must be set for loop supply routing. Fuse F2 provides
overcurrent protection on the positive leg of the selected loop supply. See
“WESTERM D20A: Jumpers”, page 66.
WESTERM
D20S: External
DC Supply
For connections to an external DC power source for status input wetting, use TB1-65
and TB1-131 on the WESTERM D20S:
Jumpers Z2 and Z3 must be set for external supply source. Since bipolar status inputs
are allowed, the polarity of the external supply can be connected either way,
depending on the application. Fuses F2 and F3 provide fusing on each leg of the
supply. See “WESTERM D20S: Jumpers”, page 67.
Содержание D20
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