Omron NX-SID Series User Manual page 90

3 Part Names and Functions
Type
OMRON Single-beam
Safety Sensors
OMRON Non-contact
Door Switches
OMRON Safety Mats
OMRON Safety Edges
3 - 12
E3ZS and E3FS
Conforms to Type 2 and PLc.
*
D40Z
Conforms to PLe and Safety Category 4.
*
D40A
Conforms to PLd and Safety Category 3.
*
UM
Conforms to PLd and Safety Category 3.
*
SGE (4-wire connection)
* Conforms to PLd and Safety Category 3.
Example
NX-series Safety Control Unit User's Manual (Z930)