Current; Voltage; Limits; Timers And Counters - Advanced Energy MDX II User Manual

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Advanced Energy

Current

Select current regulation from the control panel by pressing the CURRENT switch.
Through the serial port interface, use Command 3 to select current regulation.
Through the User port interface, pin 5 (I REG.D) must be low and pin 6 (PREG.D) must be
high.

Voltage

Select voltage regulation from the control panel by pressing the VOLTAGE switch.
Through the serial port interface, use Command 3 to select voltage regulation.
Through the User port interface, both pin 5 (I REG.D) and pin 6 (P REG.D) must be high.

Limits

This feature limits the maximum power output and the maximum current output. The current
limit is especially useful for limiting current into an arc. When you set a limit, you effectively
prevent your supply's full rated output from being delivered into a low impedance. Available
limits vary, depending on your tap selection (see page 5-8).

TIMERS AND COUNTERS

Ramp Timer

You can program the amount of time the MDXII unit takes to reach a programmed output
setpoint from the control panel, through the serial port, or through the User port. (You can
program only one ramp at a time through the User port.)
The standard ramp range is 0.6 s to 59 min and 59 s. (If you enter a zero, the ramp time will
be 600 ms.) With the fast ramp/run option, the minimum ramp time is 50 ms. (See page 2-11
for more information on this option.)
You can program up to five different ramp/run combinations (steps) to run consecutively,
which forms one recipe (see "Steps and Recipes" on page 5-4).

Run Timer

You can program the MDXII unit from the control panel or through the serial port to shut off
output after running for a specified amount of time. You cannot set or modify a run time from
the User port.
The standard run-time range is 0 s to 99 hr and 59 min and 59 s. With the fast ramp/run
option, the range starts at 0 ms (beginning after any specified ramp time); resolution is 10 ms
between 0 ms and 59.99 s.
5-2 Operation Overview 5700262-R