Moons' MSSTAC6 User Manual page 16

MSSTAC6 Step Motor Drive User Manual
Wiring a Mechanical Limit Switch
Normally open or normally closed limit switches may be used and should be wired as below:
Wiring a Limit Sensor
Some systems use active limit sensors that produce a voltage output rather than a switch or relay
closure. These devices must be wired differently than switches.
If a sensor with an open collector output or a sinking output is being used, it should be wired as below:
If the sensor output goes low at the limit, select the option "closed" (in the software). If the output is
open or high voltage, choose "open".
Other sensors having sourcing outputs, meaning that current can flow out of the sensor input, but not
into it. The sensor should then be wired as below:
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