Refer to Section 5.5 for explanation of the FOLD function prior to performing the procedure
below.
1. Ensure that the output voltage is set to approx. 10% of the unit rating.
2. Adjust the CURRENT encoder to set the current limit to approx. 10% of the unit rating.
3. Momentarily press the FOLD button. Ensure that the FOLD LED illuminates. The output
voltage remains unchanged.
4. Short the output terminals momentarily (approx. 0.5 sec.). Ensure that the output voltage falls
to zero, the VOLT display shows “Fb” and the ALARM LED blinks.
5. Press the FOLD button again to cancel the protection. The output voltage remains zero.
6. Press OUT button. Ensure that the output voltage returns to it’s last setting.
7. Turn the output off by pressing OUT button. Ensure that the VOLT display shows “OFF”.
1. Press and hold the REM/LOC button for approx. 3sec. The VOLT display will show the
communication port address.
2. Using the VOLT adjust encoder, check that the address can be set within the range of 0 to 30.
1. Press and hold the REM/LOC button for approx. 3sec. The CURRENT display will show the
communication port Baud Rate.
2. Using The CURRENT adjust encoder, check that the Baud Rate can be set to 1200, 2400,
4800, 9600 and 19200.
3.8.8 Address Setting
3.8.9 Baud Rate Setting
3.9 CONNECTING THE LOAD
18
Shorting the output may expose the user to hazardous
voltages. Observe proper safety procedures.
Turn off the AC input power before making or changing any
rear panel connection. Ensure that all connections are
securely tightened before applying power. There is a potential
shock hazard when using a power supply with a rated output
greater than 40V.
WARNING
WARNING
3.9.1 Load Wiring
3.9.2 Current Carrying Capacity
at least
The following considerations should be made to select wiring for connecting the load to the power
supply:
* Current carrying capacity of the wire (refer to 3.9.2)
* Insulation rating of the wire should be at least equivalent to the maximum output voltage of
the power supply.
* Maximum wire length and voltage drop (refer to 3.9.2)
* Noise and impedance effects of the load wiring (refer to 3.9.4).
Two factors must be considered when selecting the wire size:
1. Wires should be
heavy enough not to overheat while carrying the power supply load
current at the rated load, or the current that would flow in the event the load wires were
shorted, whichever is greater.
3.8.7 Foldback Check
CAUTION
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.)
19
Table 3-2: Maximum wire length for 1V drop on lead (in feet)
Table 3-3: Maximum wire length for 1V drop on lead (in meters)
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
2.526
1.589
0.9994
0.6285
0.3953
0.2486
0.1564
0.0983
5A
80
120
200
320
500
800
1200
2000
10A
40
60
100
160
250
400
600
1000
20A
20
30
50
80
125
200
300
500
50A
8
12
20
32
50
80
125
200
150A
2
3.4
6
10
16
26
40
68
Resistivity
Ohm/1000ft
Maximum length in Feet to limit
voltage drop to 1V or less
Cross sect.
area
(mm )
2
2.5
4
6
10
16
25
35
8.21
5.09
3.39
1.95
1.24
0.795
0.565
5A
24.0
39.2
59.0
102.6
160.0
250.0
354.0
10A
12.0
18.6
29.4
51.2
80.0
125.0
177.0
20A
6.0
9.8
14.8
25.6
40.0
62.0
88.0
50A
2.4
4.0
5.8
10.2
16.0
25.2
35.4
150A
0.8
1.4
2.0
3.4
5.4
8.4
11.8
Resistivity
Ohm/Km
Maximum length in meters to limit
voltage drop to 1V or less
For currents not shown in Table 3-2 and 3-3, use the formula:
Maximum length=1000/(current x resistivity)
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.
18
Summary of Contents for Genesys GENH6-100
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