Fujitsu MB3887 Datasheet page 21

PROCESSING WITHOUT USING THE CURRENT AMP
When Current Amp is not used, connect the INC1 terminal (pin 13) , INC2 terminal (pin 24) , INC1 terminal
(pin 12) , and INC2 terminal (pin 1) to VREF, and then leave OUTC1 terminal (pin 10) and OUTC2 terminal
(pin 2) open.
"Open"
12 INC1
1 INC2
10
OUTC1
2
OUTC2
6
VREF
Connection when Current Amp is not used
MB3887
INC1 13
INC2 24
21