Connecting-up
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 A1 §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.
P24
Emerg.
stop
A1
Y10 Y11 Y12
Y21 Y22 13
23
31
3TK2828
A
Y33 Y34
PE
14
24
32
2
K1
-K1
M
Fig. 7-9
7-16
Request protective
device enable
open
closed
-S1
47
57
A1
Y10
Y11 Y12
3TK2828
A
48
58
Y33 Y34
PE
2
Reset
S3
Sample application of "safe stop" function with contactor safety
combination for monitoring a moving protective device in Safety Category
3 to EN 954-1
6
switching cycles. The safety relay is
S2
K2
-Y1
K2
Y21 Y22
13
23
31
47
57
14
24
32
48
58
-K2
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)
6SE7087-6JK50
Operating Instructions
SIMOVERT MASTERDRIVES
05.2006
Mains
Main switch
-Q1
K1
U1 V1 W1
-X533
1
2
3
P2
PV
4
4
M
X101
X
OFF3
Y
n = 0
CU control
board
SIMOVERT
MASTERDRIVES
OFF1
U2 V2 W2
M
3
Siemens AG