KEYENCE SL-R12EX - Manual (Page 14)

Chapter 1 Specifications
1-6
1
English ENGLISH
1-4 Power Supply Precautions
1-4-1 Power Units that Can Be Used as Power Supplies for SL-C Series and SL-R11/SL-R12EX
The power supply units that can be used as the power supply for SL-C Series, SL-R11 and SL-R12EX must
completely satisfy the following requirements in order to satisfy the requirements of UL61496-1 for the SL-C
Series, SL-R11, and SL-R12EX.
(a) Rated output voltage is 24V DC ±10%.
(b) The power supply to be used shall be a dedicated power supply for the SL-C Series, SL-R11 and/or SL-
R12EX and shall not be used to supply power to other devices.
(c) The power supply output must satisfy the requirements for a Class 2 Circuit or Limited Voltage/Current
Circuit as prescribed by UL508. (This requirement applies only when the SL-C Series, SL-R11 and/or SL-
R12EX is to be used in North America.)
(d) The power supply must comply with the laws, regulations, and standards covering electrical safety,
electromagnetic compatibility (EMC), etc., for the country or region in which the SL-C Series, SL-R11 and/
or SL-R12EX will be used.
(e) The output hold time is 20 ms min.
1-4-2 Recommended Dedicated Power Supply Unit
The SL-U2 is offered as the SL-C Series, SL-R11 and SL-R12EX dedicated power supply. The SL-U2 is a
power supply that completely satisfies the above requirements.
Standard No.
EN60950
Safety EN50178
standard
UL60950 (R/C)
UL508 (Listing)
EN55011 Class A
EMC standard EN61000-6-2
FCC Part 15B Class A
SL-U2
24V DC
100 to
240 V AC
+
–
PE (GND)*
SL-U2
OC
+
-
N
L CA
UTION 100-240V A
C
ONL
Y
Connection hooks
(*) The PE terminal is a protective conductor terminal that must be connected to a protective earthing
conductor in the building.