Main Level Local Operation - Ametek Amrel PLA Series Operation Manual

MAIN LEVEL LOCAL OPERATION

There are three levels of operations: MAIN level, TRANSIENT level and TRIGGERED level. The M AIN level operation
and its associated set of values are for static operation. TRANSIENT and TRIGGERED operations are for various types
of dynamic applications.
The main level pro gramming values for the four different operating modes are entered in the same manner; the difference
is the unit of measurement for each operating mode. For example, CV mode is in V (Voltage) unit, CC mode is in A
(Amps) unit, CR mode is in  (Ohm) unit and CP mode is in W (Watts) unit.
The CV, CC, C P and CR modes have more than one operating range. The low ranges provide better resolution for low
settings. Each mode's range is selected by pressing the "RANGE" key. See example below.
Example 1.
1. Press the "CC" Hot Key. Select the programming range by pressing "Range," and turn the encoder to the desired
range (set to lo w range). Let's assume main level pro gramming value indicates 10 amps, in the lo w range. Try to set
the programming value to 15.0 Amps.
2. Press and hold the encoder and wait for a numerical key entry for a new value. On the second line of the LCD module
the following format will be displayed: CURR = 10.000A
3. Enter the following numerical key sequence "1", "5", "." and "0" or another current value below the max rated current.
4. If the number that was entered is not correct, then press the "CLEAR" key to erase the wrong entry and repeat step 3.
5. Press the "ENTER" key to complete the entry operation.
6. If the entered value is over the maximum rating of the current range, then the eLOAD LC D will d isplay "Overflow",
and allow the user to enter another value. Either change the entered value to a number that is within the current range
or select the correct range by pressing the RANGE key as indicated in step 1.
Example 2.
1. Assume that the eLOAD is in the CP mode and main level programming value indicates 40 Watts. Try to set the
programming value up to 50.0 Watts.
2. Press the "CP" Hot Key. Select the programming range by pressing "Range," and turn the encoder to the desired
range (set to lo w range). Press and hold the encoder and wait for a numerical key entry for a new value. On the
second line of the LCD module the following format will be displayed: POWER = 40 W
3. Enter the following numerical key sequence "5", "0", "." and "0".
4. If the number that was entered is not correct, then press the "CLEAR" key to erase the wrong entry and repeat step 3.
5. Press the "ENTER" key to complete the entry operation.
6. If the entered value is over the maximum rating of the power range, then the eLOAD LCD will d isplay "Overflow",
and allow the user to enter another value. Either change the entered value to a number that is within the current range
or select the correct range by pressing the RANGE key as indicated in step 1.
After the entry steps have been completed, the new main level pro gramming values will immediately be in effect and the
eLoad will return to the metering mode.
M470039-01 REV-F Page 59