Siemens SINUMERIK 840D Description Of Functions page 415

11.03
Circuit diagram
Fig. 7-23
The EMERGENCY STOP button is monitored using a safety relay K1
(3TK2805). When the EMERGENCY STOP button is pressed, safety relay K1
drops out immediately and opens the NO contacts that are included in the
connection between terminal 9 and terminal 64 on the infeed/regenerative
feedback module and in the supply path for delay module 3TK29.
As soon as the selected delay time has elapsed, delay module K2 (3TK29.3)
also drops out and opens the NO contacts that are included in the connection
between terminal 9 and terminals 48/63 and in the connection between terminal
NS1 and terminal NS2. EMERGENCY STOP can only be acknowledged when
the line contactor in the infeed/regenerative feedback module and the delay
module K2 have dropped out.
© Siemens AG 2003 All Rights Reserved
SINUMERIK 840D/SIMODRIVE 611 digital SINUMERIK Safety Integrated (FBSI) - Edition 11.03
EMERGENCY
STOP
EMERGENCY
STOP
K2 K1
Time relay
. LV1 . LV2 . 9 . 64
L1
L2
L3
Connecting-up the infeed/regenerative feedback module without SPL
7 Configuring example
7.4 Safety Integrated without SPL
Leading contact
Q1
from power switch
EMERGENCY STOP
K2
Time relay
0V
. 63 . 48 . 19
Kl Kl
. 213 . 111
BEI2_11.DSF
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