83-507-013 Rev. A
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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 Output Current setting to approx. 10% of the unit rating.
3. Momentarily press the FOLD button. Ensure that the FOLD LED illuminates. The Output Voltage re-
mains 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 the OUT button. Ensure that the Output Voltage returns to its last setting.
7. Turn the output off by pressing the OUT button. Ensure that the VOLT display shows “OFF”.
3.8.8 Address
Setting
1. Press and hold the REM/LOC button for approx. 3 sec. The VOLT display will show the communica-
tion port address.
2. Using the VOLT adjust encoder, check that the address can be set within the range of 0 to 30.
3.8.9 Baud Rate Setting (RS-232 and RS-485 only)
1. Press and hold the REM/LOC button for approx. 3 sec. The CURRENT display will show the com-
munication port Baud Rate.
2. Using The CURRENT adjust encoder, check that the Baud Rate can be set to 1200, 2400, 4800,
9600 and 19200.
3.9 CONNECTING THE LOAD
3.9.1 Load
Wiring
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 Section 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 Section 3.9.2)
∗
Noise and impedance effects of the load wiring (refer to Section 3.9.4).
3.9.2 Current Carrying Capacity
Two factors must be considered when selecting the wire size:
1. Wires should be at least heavy enough not to overheat while carrying the power supply load cur-
rent at the rated load, or the current that would flow in the event the load wires were shorted,
whichever is greater.
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
WARNING
Shorting the output may expose the user to hazardous
voltages. Observe proper safety procedures.
WARNING
Turn Off the AC input power before making or changing any
rear panel connection. Ensure that all connections are se-
curely tightened before applying power. There is a potential
shock hazard when using a power supply with a rated out-
put greater than 40V.
