Three: Local Operation; Introduction; Voltage And Current Metering Information; Operating Status Information - Ametek Amrel PLA Series Operation Manual

THREE: LOCAL OPERATION

INTRODUCTION

The programmable electronic load provides powerful control capabilit ies, wh ich consist of four operating modes
CV/CC/CR/CP. To complement and enhance these features, an internal transient generator is provided to simulate
dynamic operations. The Transient operation provides three programmable features, Transient frequency, Transient duty
cycle, and Transient slew rate. These features provide the user with precise and efficient control of the powerf ul eLoad to
handle the most diverse array of testing applications.
The programmable electronic load provides additional functions and capabilit ies, such as 256 point step programmable in
four user defined profiles, C ross Mode and Cross Range Operation and Short Operation. For battery testing, we provide
the "C" operand to help user in testing battery parameters without troublesome calculations.
The wide range of operating modes, accurate specifications, and advanced features provide the electronic load with
increased flexibility to work with different types of DUT and power source. Protection features such as Programmable
OVP, OCP, OPP, redundant OTP and hardware OP Protection are provided to protect the electronic load under different
load conditions. Please refer to the specif ications to check the maximum input current, voltage, and power range in order
to safely test and obtain the best results.
Note: Protection Mode will shut off the Load Bank input, please take the necessary precaution.

VOLTAGE AND CURRENT METERING INFORMATION

The programmable electronic load uses a DAC with a guaranteed 14 -bit resolution in the metering system and is active
once the unit is turn on. With sophisticated control circuits, the load can measure full-scale input voltages and currents
with Auto-Scaling capability. For example, when low vo ltages levels are applied, the display's decimal point will move
to accurately display the lower value. The same is true for the larger input values, the decimal will move to accurately
display the higher value. Refer to the Specifications for more pro gramming and read back information.

OPERATING STATUS INFORMATION

All operating status information will be d isplayed when they become active. For example, when the Over-
voltage is tripped, the LCD module will display OVP.
SYMBOL TYPE
-----------------------------------------------------
UNR WARNING
OVP ALARM
UVP ALARM
OCP ALARM
UCP ALARM
OPP ALARM
UPP ALARM
OTP ALARM
UTT WARNING
OSC ALARM
LV WARNING
OV ALARM
OC ALARM
OP ALARM
RCP ALARM
RSF ALARM
UVL WARNING
INT ALARM
M470039-01 REV-F
DESCRIPTIONS
unregulated
over voltage protection
under voltage protection
over current protection
under current protection
over power protection
under power protection
over temperature protection
under temperature protection
oscillation
low voltage
over voltage
over current
over power
reverse current protection
remote sense fault
under voltage lockout
interlock
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