1 0
OMRON SCIENTIFIC TECHNOLOGIES INC.
Fremont CA USA
Tel: 1/888/510-4357 in USA and Canada
© OSTI 1209 PN99584-0050 Rev. E
Original Instructions
38
10.1.1
C
ONNECTING
TO
A
S
AFETY
M
ONITORING
D
EVICE
The wiring from the 4700 system to the machine control circuit must be control reliable as described in
ANSI B11.19-1990. Normally PLCs are not designed to be control reliable. Safety devices, such as the
4700 system should not depend on a PLC to stop a guarded machine.
However, safety related monitoring devices are now available. See
for connection to such
a device. Note that all safety inputs are directed to the monitoring device which also performs the
MPCE monitoring function.
OSSD
RTN
TAN
MPCE
AUX 1
OUT
GRAY
VIOLET
WHITE
DATA L
CAN V-
START
RETURN
PINK
BLACK
+24VDC
BLUE
LCM Controller
ORANGE
BROWN
OSSD1
0 VDC
START
MPCE
RETURN
DATA H
CAN V+
OSSD 2
AUX 2
OUT
YELLOW
RED
FB/CS
Interlock
Stop
Run
Re
ce
iv
e
r
T
ra
n
sm
itte
r
MPCE 2
+24 VDC
EARTH
0 VDC
POWER SUPPLY
LCM
INPUT 1
LCM
INPUT 2
SAFETY
INTERLOCK
INPUTS
OTHER
SAFETY
DEVICES
Safety Monitoring Device
MPCE
Monitoring
Output 1
Output 2
MPCE 1
2. 25A 24 VDC 54VA
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
PROGRAM
Arc Suppressor
MPCE 2
MPCE 1
Arc Suppressor
Auxiliary Output 1: NPN, 100 mA max. ,
30 VDC max.
Auxiliary Output 2: PNP, 500 mA max. ,
Vsupply -2V
1
2
3
If remote START is not used, connect START
output to START RETURN.
1
2
3
Must be accessible only
by key.
Figure 10-1 Connecting to a Safety Monitoring Device