Aerotech Ndrive ML Series, Hardware Manual

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56 Chapter 2 www.aerotech.com
2.5. Emergency Stop Sense Input (TB101)
The ESTOP sense input is used to monitor the state of an external safety circuit only. This state is indicated
by the software and may be used to facilitate system restart. This ESTOP sense input is not intended to be a
complete safety system.
Refer to Section 2.5.1. for interconnection details.
W A R N I N G : The user is responsible for assessing operator risk levels and designing the
external safety circuits appropriately.
W A R N I N G : Opening the motor leads at the Motor Output while the axis is enabled will
damage the drive. To protect the drive, the ESTOP circuit should open the DC motor power
input (Motor Supply). Refer to
Figure 2-29 for interconnection details.
The ESTOP input is scaled for an input voltage of 5-24 volts.
If the ESTOP bit is enabled in the FaultMask axis parameter, the ESTOP input must be driven to prevent the
ESTOP fault condition.
Figure 2-28: ESTOP Sense Input (TB101)
N O T E : Connecting the ESTOP input to a relay or other noise producing device requires the use of noise
suppression devices such as those in Table 2-25 . These devices are applied across the switched coil to
suppress transient voltages.
Table 2-25: 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
Table 2-26: Mating Connector Part Numbers for the ESTOP Connector (TB101)
Description Aerotech P/N Phoenix P/N
Tightening
Torque (Nm)
Wire Size:
AWG [mm
2
]
2-Pin Terminal Block ECK01250 1803578 0.22 - 0.25 0.14 - 1.5 [26-16]
Ndrive ML Installation and Configuration