IRF3000 series
Instruction manual v1.1
22
© ads-tec Industrial IT GmbH • Heinrich-Hertz-Str.1 • 72622 Nürtingen • Germany
6 Electrical interfaces
6.1 Power supply
Pin
Signal
DI
Digital input #1: +24 VDC ± 20
%
(Reference potential is 0V of the device)
FE
Functional earth (required for EMC)
0V
Reference potential 0 V
V+
Supply v24 VDC ± 20 %
Requirements on the power supply
•
Conformity:
- Class PS2 acc. to IEC 62368-1
or
- Limited Power Source (LPS) acc. to IEC 60950-1
- For devices with UL-Certification: NEC Class 2
•
Voltage: 24 VDC ± 20
%
•
Short-circuit current: < 8 A
Devices with UL certification (Underwriter Laboratories, USA):
•
For the power supply of the device, a power adapter acc. to
NEC Class 2
must be used
(LPS = Limited Power Source).
•
Only use copper conductors to connect the power supply.
Schematic diagram for the wiring of digital input no. 1:
Recommendation for use
:
Use flexible cables with a wire cross section of 0.5
mm² / AWG20 and appropriate cable end sleeves.
To minimise mechanical strain between the
individual wires and the plug, the distance between
jacket and plug should be at least 30 mm.