Emergency Stop Sense Input

WARNING: It is your responsibility to assemble the external safety circuits of your system to minimize the risk to the operator.

IMPORTANT: The ESTOP sense input is not a safety-rated system.

Use the ESTOP sense input to monitor the state of an external safety circuit only. The software identifies this state by using the Emergency Stop Input Level bit of the Drive Status. To get the software to generate an ESTOP fault when power is removed at the ESTOP input, set the ESTOP bit in the FaultMask parameter.

The ESTOP input is scaled for an input voltage of 12 - 24 volts.

Figure 2-20: ESTOP Sense Input Schematic

Table 2-32: ESTOP Pins on the Encoder Input Connector

Pin #	Label	Description	In/Out/Bi
5	ESTOP+	Emergency Stop Digital Input +	Input
6	ESTOP-	Emergency Stop Digital Input -	Input

IMPORTANT: If you connect the ESTOP input to a device that makes electrical noise, you must connect an electrical noise suppression device across the switched coil. Refer to Electrical Noise Suppression Devices to see the types of devices you can use.

Table 2-33: Electrical Noise Suppression Devices

Device	Aerotech P/N	Third Party P/N
RC (.1uf / 200 ohm) Network	EIC00240	Electrocube RG1782-8
Varistor	EID00160	Littelfuse V250LA40A