Npaq® Hardware Manual
Options
3.3. Emergency Stop Options (ESTOP1,2,3)
ESTOP1, 2, and 3 are integrated emergency stop hardware options available on the Npaq.
l
ESTOP1 uses a single relay to disconnect the motor power supply from the internal drive modules.
l
ESTOP2 uses two relays in series to disconnect the motor power supply from the drive modules.
l
ESTOP3 uses two relays in series to disconnect the motor power supply from the drive modules and
dissipates the stored energy in the motor power supply.
All relays are force guided and have a monitor contact.
The ESTOP1,2,3 options can be used to provide performance in accordance with EN ISO 13849-1 as shown
in
.
Table 3-3:
ESTOP Safety Ratings
Option
Relays
EN ISO 13849-1
ESTOP1
1 force guided relay with monitor contact
Category 2, PL d
ESTOP2
2 force guided relays with monitor contacts
Category 3, PL d
ESTOP3
2 force guided relays with monitor contracts
Category 3, PL d
W A R N I N G : The machine integrator, OEM, or end user is responsible for performing the
design, integration, and test of the safety system in accordance with the relevant safety
standards. This responsibility includes the use of safety monitoring devices, interlocks,
switches, light curtains and all other means of providing operator protection.
All ESTOP1,2,3 connections must be made to the optional J70 ESTOP connector. The Misc I/O J12
connector pin 7 (ESTOP +) and pin 8 (ESTOP -) must be left unconnected in this case (see
).
The Npaq's Emergency Stop Sense Input (see
) is internally connected to the J70 ESTOP
connector when present (see
,
, and
). This state allows the A3200 system to
report the Emergency Stop status and to facilitate restarting the system after the Emergency Stop condition
has been removed. The response of the system to the Emergency Stop input is configurable using the
FaultMask parameters. However, this operation is not considered part of the safety circuit and is not
compliant with EN ISO 13849-1.
Table 3-4:
Relay Specifications
ESTOP1 CR1 and ESTOP2 CR1 and CR2
Relay Part Number
Aerotech: ECW01106
Sprecher & Schuh: CA7-16E-01-24E
AC-1 (resistive load)
Rating of 32 A
Turn On
The coil requires 17.0 W to turn on (which is equal to 700 mA @ 24 V)
On / Holding
The coil requires 1.7 W on (holding) current (which is equal to 70 mA @ 24 V)
ESTOP3 CR1 and CR2
Relay Part Number
Aerotech: ECW01107
Sprecher & Schuh: CA7-16E-M31-24E
AC-1 (resistive load)
Rating of 32 A
Turn On
The coil requires 17.0 W to turn on (which is equal to 700 mA @ 24 V)
On / Holding
The coil requires 1.7 W on (holding) current (which is equal to 70 mA @ 24 V)
94
Chapter 3
www.aerotech.com
