Wire Termination - TDK-Lambda Genesys GEN6-100 User Manual

2. Wire size should be selected to enable voltage drop per lead to be less than 1.0V at the rated
current. Although units will compensate for up to 5V in each load wire, it is recommended to
minimize the voltage drop (1V typical maximum) to prevent excessive output power consum-
ption from the power supply and poor dynamic response to load changes. Please refer to
Tables 3-2 and 3-3 for maximum wire length to limit voltage drop in American and European
dimensions respectively.
Wire size
AWG
14
12
10
8
6
4
2
0
Table 3-2: Maximum wire length for 1V drop on lead (in feet)
Cross sect.
area
2
(mm )
2.5
4
6
10
16
25
35
Table 3-3: Maximum wire length for 1V drop on lead (in meters)
For currents not shown in Table 3-2 and 3-3, use the formula:
where current is expressed in Amperes and resistivity in ohms/km or ohms/1000ft.

3.9.3 Wire termination

The wires should be properly terminated with terminals securely attached. DO NOT use unter-
minated wires for load connection at the power supply.
When local sensing, a short from +LS or +S to -V or -S or -LS,
will cause damage to the power supply. Reversing the sense
wires might cause damage to the power supply in local and
remote sensing. (Do not connect -S to +V or +S to -V.)
Maximum length in Feet to limit
Resistivity
Ohm/1000ft
5A
2.526 80
1.589 120
0.9994 200
0.6285 320
0.3953 500
0.2486 800
0.1564 1200
0.0983 2000
Maximum length in meters to limit
Resistivity
Ohm/Km
5A
8.21 24.0
5.09 39.2
3.39 59.0
1.95 102.6
160.0
1.24
0.795 250.0
0.565 354.0
Maximum length=1000/(current x resistivity)
CAUTION
voltage drop to 1V or less
10A 50A
20A
40 20
60 30
100 50
160 80
250 125
400 200
600 300 125
1000 500 200
voltage drop to 1V or less
10A 50A
20A
12.0 6.0 2.4
18.6 9.8 4.0
29.4 14.8 5.8
51.2 25.6 10.2
16.0
80.0 40.0
125.0 62.0 25.2
177.0 88.0 35.4
19
19
150A
8 2
12 3.4
20 6
32 10
50
16
80 26
40
68
150A
0.8
1.4
2.0
3.4
5.4
8.4
11.8