38
IMS-MN-LMDA42C_A.pdf
External Power Supply Units
LMD CANopen
The graphic below shows power supply cabling 50’ (15.2 m) or greater, AC power to a full wave
bridge.
≥
50’ (15.24 m)
A
A
B
B
C
C
D
D
Shield to Earth
(Supply End Only)
Ŀ Type RFI Filter
≥
Required Current
Transformer: 10 to 28 VAC RMS
Shielded Twisted Pair (See AWG Table for Size)
Full Wave Bridge Rectifier, Rectifier Output
Connects to Cable Shown in Figure 3.1
+
-
To the DC Power
Supply Cable
The graphic below shows power cabling 50’ (15.2 m) or greater, DC power to an unregulated
DC power supply.
≥
50’ (15.2 m)
A
B
C
Shield to Earth
(Supply End Only)
A
B
C
Ŀ Type RFI Filter
≥
Required Current
120 or 240 VAC Dependant on DC Power
Supply AC Input Requirement
Shielded Twisted Pair (See AWG Table for Size)
Unregulated DC Power Supply
+
-
D
D
To the DC Power
Supply Cable
Wire Size
System EMI performance may be impacted by the wire size, length, and current.
Length [ft (m)]
10 (3.0)
25 (7.6)
50 (15.2)
75 (22.9)
100 (30.5)
Amps (peak)
Minimum AWG (mm
2
)
1
20 (0.5)
20 (0.5)
18 (0.75)
18 (0.75)
18 (0.75)
2
20 (0.5)
18 (0.75)
16 (1.5)
14 (2.5)
14 (2.5)
3
18 (0.75)
16 (1.5)
14 (2.5)
12 (4.0)
12 (4.0)
4
18 (0.75)
16 (1.5)
14 (2.5)
12 (4.0)
12 (4.0)
