AMETEK PLA-PLW - Manual (Page 13)

x Fan speed control for reduced acoustic noise under light load conditions (PLA Only)
x 0-10Vdc analog programmable
x Simple closed-case calibration
x Highest power density: up to 18KW in 2U height (PLW Only)
x Field-upgradeable capability for GPIB, RS232, USB and Ethernet
x Three ranges for each operating mode; Auto or Manual
x External analog programming control for each mode and range
x Panel lock capability
x Program the Slew rise time and Slew fall time independently
x 50us transient time at CC mode; 500us transient time at CV mode
x Anti-Oscillation controls: System bandwidth controls
x Oscillation detection and protection
x Anti-Saturation controls: Under Voltage Lockout
x 16 bits programming and read back capability
x Cross mode and Cross range capability; default off
x Remote Inhibit and Dry contact Fault output
x Pulse power capability with Over Power Protection
x Field-upgradeable firmware
x Self-diagnostic capability
x Redundant Over Temperature Protection
x Four Step profiles; 32 step points for each profile
x Soft-Start Functionality
x Convenient and efficient Hot Keys for mode and Transient Mode Selection, Input and Transient On/Off
Control, Slew Rate Settings, Front panel trigger, and Short.
x Independent Large Numerical Voltage and Current LED display
x Power Interruption (Current Interruption) for Impedance Measurement of Fuel Cells and Batteries
GENERAL INFORMATION AND OPERATING NOTES
Operating Modes:
The four modes of operation are:
Constant Current (CC):
The eLOAD will sink a current in accordance with the programmed value regardless of the input voltage.
Note 1: Never use CC mode for testing a constant current source. The regulation of the two units will fight for control of
the current and an unstable oscillation will result.
Note 2: During CC mode, the eLOAD can operate under the fastest transient time.
Constant Voltage (CV):
The eLOAD will attempt to sink enough current to control the source voltage to the programmed value. It acts
as a shunt voltage regulator when operating in the CV mode.
Note 1: Never use CV mode for testing a constant voltage source. The regulators of the two devices will buck each other
trying to gain control of the voltage which will lead to an unstable condition.
Note 2: In CV mode, the transient time will be adjusted to a slower setting to ensure stable operation.
Constant Resistance (CR):
The eLOAD will sink a current linearly proportional to the input voltage according to the programmed value.
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