User Manual – Rev BE AMETEK Programmable Power
MX Series 317
• Toggle VOLT REF = EXT *Use shuttle, or, +/- key to change
field.)
Once the MX is set to EXTD mode turn the output ON then apply the external
signal. If the external signal is applied prior to the output being turned ON,
ringing can occur, and the controller will shut down the system. Ensure the
EXTD is enabled, and the output is ON prior to applying the external signal.
The MX EXTD circuit includes high frequency protection circuitry that results in a
100µsec delay from Internal EXTD input the amplifier output.
Caution should be taken to minimize DC voltage when equipment under test
includes a transformer. Any DC voltage present on the external signal will be
amplified, causing transformer saturation and automatic shutdown of the MX
Series.
The MX voltage slew rate is approximately 0.5V/µsec. External drive signal
slew rates should be set to similar speeds to avoid overshoot or ringing of the
amplifier during voltage transient generation.
It is recommended to discontinue use of the VIRTUAL PANELS while in EXTD
mode of operation.
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