User Manual – Rev BE AMETEK Programmable Power
MX Series 140
Constant Current mode will maintain the load current at
the maximum level set by the current limit value, even
if the maximum power level is exceeded. This is done
by reducing the voltage as needed. As such, the
voltage will be reduced from the set level down to zero
depending on the load requirement. This mode is
useful for starting up motor or capacitor loads that may
require a high inrush current. This mode also has a
user programmable trip delay.
Voltage sensing for regulation and measurement can be
selected for internal or external. External voltage
sensing can compensate for voltage drops caused by
load cable impedance. To achieve the best output
regulation, select external sense and connect the
voltage sense wires at the load.
INITIAL SETUP The initial setup menu can be used to determine the AC
source settings at power up. CAUTION: The initial setup
can be used to power up the AC source with the output
on and a high voltage present at the output. For normal
situations, this is not recommended due to the potential
danger to operators. It is recommended that the initial
voltage be set low and/or the output relay be
programmed to OFF for most situations.
LIMIT SETUP The Limit menu shows the frequency, voltage, and
current limit capabilities of the AC source. Any attempt
to program the output beyond these limits will result in
a “-222 Data Out of Range error”. Note that these limits
are hardware determined and cannot be changed by
the user. They are shown for reference only.
UTILITY 2
CONFIGURATION The Configuration menu shows the installed options.
This screen is for reference only and typically, no fields
can be changed by the user.
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