6.8.2.5
SRLY + WROG
Option board IS400WROGH1A adds fused power distribution for all twelve relays. Isolated voltage sensing that is not
polarity sensitive is provided for each fuse. Refer to the
table for compatible applications.
IS400WROGH1A has default fuse values of 3.15 A. Electrically, SRLYS2A plus IS400WROGH1A together have circuitry
displayed in the following figure. Fuses FU1 through FU12 are associated with relay circuits 1 through 12 respectively.
Connector JW2 and its connections to JA1 are omitted for clarity.
S WROG Circuitry
168
GEH-6855_Vol_II
GEH-6855_Vol_II Mark VIeS Functional Safety Systems Volume II
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