User Manual – Rev BE    AMETEK Programmable Power 
MX Series  154 
4.2.12  OUTPUT IMPEDANCE Menu  [MX30-3Pi or MX45-3Pi Model in 3 phase mode only] 
 
Figure 4-27: OUTPUT IMPEDANCE Menu 
The MX30-3Pi and MX45-3Pi offers programmable output impedance in three-
phase mode of operation. This allows the user to simulate line impedance 
conditions by programming resistive and inductive elements of the AC source’s 
output impedance. 
NOTE:  No programmable impedance function is available in single 
phase mode or on MX system configurations other than the 
MX45-3Pi.  
The OUTPUT IMPEDANCE menu can be accessed from MENU 3. The following 
fields are available in this menu: 
Entry  Description   
RESISTIVE  Sets the resistive component of the output impedance. 
  (The lower limits for the resistive and inductive 
components may vary on different AC source models 
and are set as part of the source calibration.) 
INDUCTIVE  Sets the inductive component of the output impedance. 
  (The lower limits for the resistive and inductive 
components may vary on different AC source models 
and are set as part of the source calibration.) 
SET MINIMUM  Selecting this field and pressing the ENTER key sets 
both impedance components to their minimum values. 
This effectively turns the programmable impedance 
function off. 
NOTE:  The Programmable Impedance function of the MX30-3Pi or 
MX45-3Pi is mutually exclusive with the Automatic Voltage 
Level Control (ALC) mode of operation. One must be turned off 
the enable the other.