Metronix ARS 2302 Product Manual page 67

24V internal
Triggering of driver supply relay
(driver supply sw itch off)
High
1
"ON"Low
2
3
X3
4
5
Floating feedback
6
contact for driver
Triggering of holding brake
High = lift brake (active)
Low = apply brake
µP
Internal output
stage enabling
1. shut-down path
21
X1
9
Figure 7: Block diagram "Safe Torque-Off" as per EN ISO 13849-1, Performance Level d
If the "Safe Torque-Off" function is not needed, bridge pins 1 and 2 to [X3].
A "Safe Torque-Off" as per EN ISO 13849-1, Performance Level d, requires two channels, i.e. a restart
must be safely prevented two ways, completely independent of each other. These two ways of
interruption, the power supply to the drive and the safe pulse inhibitor, are called shut-down paths.
1. Shut-down path:
Metronix Meßgeräte und Elektronik GmbH
Kocherstraße 3
D-38120 Braunschweig
Germany
15V IGTB driver supply
= driver supply voltage
= "pulse inhibitor" active
2. shut-down path
supply
m o n ito ri n g
o f th e
d ri ve r su p p ly
6 6
Output stage driver
PWM signal inhibition
Telefon: +49-(0)531-8668-0
Telefax: +49-(0)531-8668-555
E-mail: vertrieb@metronix.de
http://www.metronix.de
"Locking" of holding brake in case of
triggeringDriver supply relay = low
+24V-IO
2
1
X6
3
6
7,8,9
IGBT output stage
Holding brake (optional)
SM