S11
S12
24 V
OSSD
S22
S12
S11
S12 S22
S22
①
②
③
K1
K2
S35
S33
K1
K2
S35
S33
S34
S33
S34
S33
①
②
④
③
3 Installation
ESR5-BWS-31-24VDC
11/23 MN049020EN Eaton.com
28
3.4.3 Terminal models Signal encoder
▶
Connect suitable signal encoders to S11/S12/S22.
Figure 16:
Terminal models Signal encoder
a
Single-channel connection
b
Dual-channel connection without cross-circuit detection
c
Dual-channel connection with
external
cross-circuit detection by the signal encoder
3.4.4 Connection options Start and feedback circuit
Automatic start
▶
Connect the contacts S33/S35.
Manual, monitored start
▶
Connect a reset pushbutton to contacts S33/S34.
A connected reset pushbutton is monitored.
Start and feedback circuit
▶
To monitor external contactors or expansion devices with positively
driven contacts, connect the respective N/Cs to path S33/S34 or
S33/S35.
Figure 17:
Connection options Start and feedback circuit
a
Automatic start
b
Manual start with monitored contact expansion module
c
Manual, monitored start with monitored contact expansion module
d
Manual, monitored start
→
If single-channel driving via a PLC is used, then the PLC's digital
output must meet the requirements for the required safety
integrity.