Diamond 36kW Manual
Dynatronix, Inc.
198-1600-00 Rev F
Page 71 of 146
10. Once the volt meter offset value stabilizes press the voltage encoder switch to accept the
computed volt meter offset value and exit the CL02 or CL06 calibration step.
11. From the module read back calibration menu rotate the current encoder until the display
shows “CAL” “End”. Press the voltage encoder switch to exit the module read back
calibration menu and return to the “Calibrate Configuration Menu”.
12. If changes were made to any calibration values you will be prompted to store the changes.
Select “yES” to accept the changes or “no” to cancel the changes to the calibration values.
10.2.2. Output and Read Back Gain Calibration
This sequence sets the calibration gain values for the output and the readings of one 18kW power
module.
NOTE:
Each 18kW module must be individually calibrated
NOTE:
The existing calibrati
on values can be viewed without changing them by selecting “no” if
prompted to store changes. The gain calibration values can only be viewed while the power
supply is operating (CL3,4,7,&8), the associated calibration signal setting can be changed to zero
(zero volts or zero amps) to minimize power supply output while viewing the calibration values.
1. Connect the appropriate load and shunt for current calibration as determined in Section
2. Enter the module A or module B read back calibration menu as defined in Section
(“rd A” or “rd b”). The module read back calibration menu contains a “dFLt” sub menu to
load default calibration values (see
10.1.3:Restoring the default calibration values
) and it
contains sub menu selections for each calibration point (CL01 to CL08). Each calibration
point should be calibrated in numerical order (first calibrate CL01, then CL02, and so on
until CL08 is calibrated). The calibration points can be viewed in any order at any time.
When viewing calibration points CL3,4,7, or 8 set the associated signal level to zero and
then press the operate button to view the calibration point. The chart in section
describes each calibration point and the text displayed for each point.
3. From the module read back calibration menu rotate the current encoder until the display
shows “CAL” “CL03” (module A) or “CL07” (module B). Press the voltage encoder switch
to view and change CL03 or CL07. When CL03 or CL07 are viewed the top display will
show “I.rd SEt CL0#”. The bottom display shows the current setting (output value) that will
be used to calibrate the amp meter gain value.
4. The amp meter gain value can be calibrated at any current output level greater than 10% of
the module output rating. However it is recommended to calibrate the amp meter gain at
95% of the module output current rating (the default output setting is 95% of the module
output rating). The connected load should be sized according to the current level that will
be used for calibration. Set the current output setting by turning the current encoder to
adjust the currently selected digit (blinking). Each press of the current encoder switch
advances to the next digit. A current output setting of zero can be used to view the amp
meter gain value with minimal power supply output.
5.
Push the “OPER” switch to enable the power supply output. The top display shows “I.rd
gAin CL0#”, the bottom display shows the gain value. Use the current encoder to adjust
the gain value until the measured module output matches the output level set in the
previous step. Increasing the gain value will decrease the module output. The module
