Presence Sensing Safety Devices
Safety Edges
Safedge™ Controllers
Specifications
Standards
Safety Category
Approvals
Power Supply 251
252
Power Consumption 251
252
Fuses, Internal 251D, 251P
251P
252D
EN1760-2, EN954-1, ISO 13849-1,
AS4024.5, EN954-1, ANSI B11.19
Cat. 3 per EN954-1
CE marked for all applicable directives,
cULus, TuV
24V AC/DC or 110/230V AC 50/60Hz
24V AC/DC 50/60Hz
<6VA
<4VA
500mA Power Supply, Replaceable
2 x 2A Safety Output, Replaceable
500mA, Resettable
4A on AC, 2A on DC
6KΩ, 12V DC open circuit, 4V DC run
condition
1 N.O.
9KΩ
1KΩ
2 N.O.
1 N.O.
1 N.C.
2A/250V AC, 2A/125V AC
1A/30V DC
10mA/10V
13ms
Green = Run
Yellow = Open Circuit
Red = Stop
2500V
C in accordance with VDE0110
3
-10°C to 55°C (-14°F to 131°F)
90% RH
IP40 (NEMA 1)
IP65 (NEMA 13)
IP20 DIN 0470
1 x 4mm
2
(10AWG) stranded
1 x 4mm
2
(10 AWG) solid
1 x 1.1mm
2
(18AWG) stranded
1 x 1.5mm
2
(16AWG) solid
Polycarbonate
181g (0.4lbs)
450g (1.0lbs)
650g (1.4lbs)
0.15mm 10-55Hz
10g, 11ms half sine
Description
The Safedge controllers are designed to operate with the Safedge
profiles. The controller continuously monitors the profile for
actuation and generates an output signal when the profile is
depressed.
The Safedge controller provides a low voltage to the profile. When
the profile is pressed, the controller detects a change in resistance
and turns off its output relays. When pressure is released from the
profile, the output relays of the controller return to an on state. The
controller has redundant voltage free positively-guided output relays
which can be used to interface with a machine control system.
The ‘251’ controller comes capable of operating at 24V AC/DC, or
120/230V AC from separate terminals. An internal switch changes
the operating voltage from 120V AC to 230V AC. The ‘252’
controller operates at 24V AC/DC.
An auxiliary output relay is available to provide a signal about the
controller’s status. Three LEDs indicate whether the controller is in
RUN, STOP or OPEN condition. The controller operates in manual
or automatic reset mode.
Fuses, External
Safety Input Profile
Monitoring
Maximum Input Impedance
Profile
Monitoring Circuit
Outputs 251 Safety
252 Safety
251, 252 Auxiliary
Output Rating
Min. Switching Current/Volt.
Max. Response Time
Indication LEDs
Impulse Withstand Voltage
Installation Group
Pollution Degree
Operating Temperature
Humidity
Enclosure Protection
251D, 252D
251P
Terminal Protection
Max Conductor Size
251D, 252D
251P
Case Material
Weight 252D
251D
251P
Vibration
Shock
Features
•
•
•
•
•
•
1 N.O. or 2 N.O. Safety Outputs
1 N.C. Auxiliary Output
24V AC/DC or 120/240V AC
Output Monitoring
LED Indicators for RUN, STOP and OPEN
Automatic/Manual Reset
2-103
Presence Sensing Safety Devices
Safety Edges
Safedge™ Controllers
Typical Wiring Diagrams
L1
Reset
24V DC
L1 L2 L3
L +Ve Z1
Safedge
L1 L2 L3
L
Safedge
Z2
X1
13
23
31
K1
K2
+Ve
Z1
Z2
X1
13
23
31
K1
K2
440F-C251D
440F-C251P
440F-C251D
440F-C251P
N
-
Ve
X2 14
K1
24
K2
42
N
-
Ve
24V Ground
X2
14
K1
24
K2
42
M
M
N
Series Terminated, Safedge Input, Manual Reset,
Dual Channel Output, Monitored Output
Series Terminated, Cascaded, Safedge Input, Automatic
Reset, Dual Channel Output, No Output Monitored
+24V DC
+24V DC
Reset
L1 L2 L3
L1 L2 L3
+
Safedge
Safedge
Z1
Z2
X1
13
21
K1
K2
Safedge
+
Z1
Z2
X1
13
21
K1
440F-C252D
440F-C252D
-
24V Ground
X2
14
K1
22
-
M
24V Ground
X2
14
K1
22
M
K2
Parallel Terminated, Safedge Input, Manual Reset,
Dual Channel Output, Monitored Output
Series Terminated, Safedge Input, Automatic Reset,
Single Channel Output, No Output Monitored
Accessories
Description
Fuse, 500mA
Fuse, 2A
Page
14-6
14-2
Catalogue Number
440R-A31562
440A-A09197
2-105