Siemens 6SE7087-8KN50 Instructions De Service page 225

08.2008
P24
Emerg.
stop
A1 Y10 Y11 Y12 Y21 Y22 13 23
3TK2828
A
Y33 Y34 PE 14 24
2
K1
M
Siemens AG 6SE7087-7KN50
SIMOVERT MASTERDRIVES
The checkback contacts of the safety relay are capable of at least
100,000 switching cycles at the specified load (30 V DC / 1 A). The
mechanical service life is about 10
an important component in ensuring reliability and availability of the
machine. For this reason, the pcb with the safety relay must be
replaced in the case of malfunction. In this case, the unit must be
returned for repair or replaced. Function checks must be carried out at
regular intervals, which must be defined in compliance with Employer's
Liability Insurance Regulation BGV A3 §39, para. 3. Accordingly,
function checks must be performed as required by the relevant service
conditions, but at least once a year and additionally after initial
commissioning and any modification and/or maintenance work.
open
closed
-S1
31 47 57 A1
3TK2828
32 48 58 Y33 Y34
Reset
S3
-K1
Fig. 7-9 Sample application of "safe stop" function with contactor safety
combination for monitoring a moving protective device in Safety Category
3 to EN 954-1
Operating Instructions
6
switching cycles. The safety relay is
Request protective
device enable
S2
K2
-Y1
Y10 13 23 31 47
Y11 Y12 Y21 Y22
A
PE 14 24 32 48
2
X: Binary input, connect to OFF3
e. g. X101.8 --> P558 = 21
Y: Binary output, connect to "Comparison value
reached"
e. g. X101.6 --> P654 = 120; P796 = 0 (comparison value)
Connecting-up
K2
Main switch
57
58
-X533
1
2
3 P2
4
4
M
X101
X
OFF3
Y
n = 0
CU control
board
SIMOVERT
-K2
MASTERDRIVES
OFF1
Mains
-Q1
K1
U1 V1 W1
PV
U2 V2 W2
M
3
7-15