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APP. NOTES
APP Note 500: Calculating Capacitor Charge Time
APP Note 502: Calculating AC Line Currents
APP Note 505: Charging units as Continuous Output DC  Supplies
APP Note 507: Charging Large Load Capacitors
APP Note 509: What is Regulation and Repeatability?
APP Note 513: Power Factor Correction
APP Note 517: Protection Against Voltage Reversal
Appn. Questionnaire
 
ALE 402 Resources

Remote Control Interface
The 402 power supply features a common interface with the 802 and XR802, via a 25pin D-type female connector located on the rear panel of the unit. The table below shows details of the function and the pin-out for the connector.

PIN SIGNAL NAME I/O DESCRIPTION
1 VANALOG OUTPUT 0-10V analog of output charging voltage waveform (+/- 1%).
3 INHIBIT LED OUTPUT Open collector output. Indicates the PS is receiving an inhibit input
5 EOC LED OUTPUT Open collector output. Indicates the PS has reached end of charge
7 INHIBIT INPUT 5 to 15V inhibits unit operation, Open or Gnd allows operation. Use this signal to disable charging during HV switch recovery
8 ENABLE/RESET INPUT 15V = High Voltage On, Gnd or open = High Voltage Off
9 VPEAK OUTPUT 0-10V Peak detector of output waveform
10 HV ON LED OUTPUT Open collector output. Indicates the HV is ON
12 GND   Control circuit return. Also chassis ground
13 IANALOG OUTPUT Analog of output waveform (+/-1%)
14 +15V OUTPUT 15V through 100ohm series resistor
16 OVERTEMP LED OUTPUT Open collector output. Indicates Overtemp fault
17 INTERLOCK LED OUTPUT Open collector output. Indicates the interlock is open
18 LOAD FAULT LED OUTPUT Open collector output. Indicates output overload, over-voltage, or open circuit condition
19 SUMMARY FAULT LED OUTPUT Open collector output. Indicates summary fault
20 INHIBIT INPUT 0V inhibits unit, 15V or open allows operation
22 V PROGRAM INPUT 0-10V signal = 0 to 100% of rated voltage
23 HV OFF LED OUTPUT Open collector output. Indicates the HV is OFF
24 GND   Control circuit return. Also chassis ground
25 +12V LED OUTPUT 12V at 100mA max for powering status LEDs

HV Output
The HV output connector on all oil insulated units is a proprietary ALE design. A standard 10ft high voltage cable is supplied which is terminated at the power supply end only. If the supply is operated at voltages above 20kV and 200Hz rep rate it is recommended that a silicone grease such as Dow Corning DC-4 is applied to the cable termination before insertion in the supply. Greasing should be repeated to ensure as much air as possible is displaced from the connector.

Mechanical Details
The 402 power supply is packaged in a standard 19" rack mount chassis with the following external dimensions.

Height: 7" (178mm)
Panel Width:19" (482.6mm)
Chassis Width: 17" (432mm)
Chassis Depth: 17" (432mm)

Rack mountable with General Devices CTS-122 or CTS-222 or equivalent slides with 3.875" hole centers
Click here for a PDF format chassis drawing

Panel Configurations
The 402 power supply is available with 3 panel configurations the L, S, and OEM. The L or Lab version features a fully instrumented front panel with the following functions;

• 10 turn output voltage control potentiometer (L only)
• Digital average voltage and current meters (L only)
• Digital average voltage and current bars (L only)
• Local/Remote/Off removable keyswitch (L only)
• Power On/Off switch (L/S only)
• View set switch (L only)
• HV On/HV Off switches (L only)
• HV ON, HV OFF, INHIBIT, END OF CHARGE, INTERLOCK OPEN, LOAD FAULT, OVERTEMP indicator LEDs (L/S only)

The rear panel is equipped with the following

• 25pin D-type remote interface connector (female)
• 25pin D-type slave interface connector (male) (L only)
• BNC INHIBIT Input Connector (L only)
• Interlock terminal strip (L/S only, optional on OEM)
• AC Input terminal strip
• HV Output connector


402 Series ordering details

402 X-XXkV-XXX-XXX-XX
Package (L/S/OEM)
Rated Voltage (kV)
Polarity (POS/NEG)
AC Input Voltage Options
3P208 208VAC 3ph RS Remote load voltage sense
3P400 400VAC 3ph + N 5V 0 to +5V programming = 0 to full scale output voltage (standard 0-10V)
    LP Latching Overload Protection
    CT AC line contactor (OEM only)

Ordering Example
402L-20kV-POS-3P400-RS
Model 402 with L front panel, 0-20kV rated output voltage, positive polarity, 400VAC 3 phase input, remote sense option.

 
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