General Purpose Input Signals(Ninpos,Nalarm); Encoder Signals - ICP DAS USA I-8094 Getting Started Manual

2.3.3 General Purpose Input Signals(nINPOS,nALARM)

INPOS is a digital input signal to indicate the In-Position signal of the driver. User can
enable or disable the signal from the software instruction in I8094/I8094F software
manual.
ALARM is a digital input signal to indicate the servo alarm signal of the driver. The
output pulse will be stop if PISO-PS400 receives the ALARM signal. User can enable
or disable the signal from the software instruction in I8094/I8094F software manual.
Fig. 2.12 General Digital Input circuit

2.3.4 Encoder Signals

The following diagram is for Differential-Type encoder signals. Connect the Phase A
signal to A+ and A- pins and connect Phase B signal to B+ and B- pins. After the high
speed photo coupler isolation, the isolated encoder signals are connected to motion IC.
Fig. 2.13 Encoder signal connection
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