User Manual – Rev BE AMETEK Programmable Power
MX Series 146
OL MODE This field is used to select constant current (CC) or
constant voltage (CV) mode. The constant current
mode will limit the maximum amount of current drawn
by the load to the set value. The voltage will be
reduced as needed after the trip delay time to maintain
the level of programmed current.
The constant voltage mode will maintain the set voltage
if the current drawn by the load does not exceed the
current limit programmed. If the current limit is
exceeded, the output will be shut off after the trip delay
time.
TRIP DELAY The trip delay field may be used to set the amount of
time to hold off the current limit trip point. The
minimum amount of time is 100 ms or 0.1 sec. The
maximum amount of time is 5.00 sec.
VOLT SENSE This field selects the internal or external sense line
inputs. Internal sense does not require the external
sense lines to be connected as sensing occurs at the
output relay of the AC source. For best results, connect
the external sense lines and select the EXT sense mode
in this field. This will compensate for voltage drop in the
cables to the load. The measurements are also taken at
the sense points, so the external sense mode should be
used for best measurement results.
NO. OUTPUT This field is only accessible on the MX30-3Pi or MX45-
3Pi. (Phase mode). It allows the number of output
phases to be toggled between one and three. In single-
phase mode, all power is routed a single output
terminal block TB1B (A and Neutral). In three-phase
mode, power for phase A, B and C is available on
terminal block TB1A and the neutral connection is still
on TB1B but the A output on TB1B is not connected.
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