EASY-DRIVER – User’s Manual
24
3.3
EEPROM Memory Mapping
Each power supply module has an on-board EEPROM memory that stores all
information about calibration parameters, module identification, thresholds, etc. Some
fields can be user-defined to exactly fit the power supply to the specific application.
The EEPROM cell size is 32 bytes and, being the content stored in ASCII string
format, the total string can contain 31 bytes + ‘\r’ termination character.
The EEPROM structure is presented in
Table 4
:
Cell #
Cell Caption
Description
0
c0I_set
Zero-order current calibration coefficient
1
c1I_set
1st-order current calibration coefficient
2
c2I_set
2nd-order current calibration coefficient
3
c3I_set
3rd-order current calibration coefficient
4
Imax
Maximum settable current set-point
5
c0V_read
Zero-order voltage calibration coefficient
6
c1V_read
1st-order voltage calibration coefficient
7
c2V_read
2nd-order voltage calibration coefficient
8
c3V_read
3rd-order voltage calibration coefficient
9
c0 DC_Link
Zero-order DC-link calibration coefficient
10
c1 DC_Link
1st-order DC-link calibration coefficient
11
c2 DC_Link
2nd-order DC-link calibration coefficient
12
c3 DC_Link
3rd-order DC-link calibration coefficient
13
KP - proportional constant
PID regulator proportional gain
14
KI - integral constant
PID regulator integrative gain
15
KD - derivative constant
PID regulator derivative gain
18
Newton-Raphson Iterations
Number of iterations for inverse calibration
19
Diagnostic Iterations
Number of iterations for internal diagnostics
20
Max MOSFET Temperature
Maximum MOSFET heatsink temperature
21
Max SHUNT Temperature
Maximum shunt resistor temperature
22
Serial Number
Module serial number
23
Undervoltage Protection
Under-voltage protection threshold
24 … 25
reserved
26
Calibration Date
Date of last calibration
27
Identification
Module identification name
28
reserved
29
External Interlock Activation Level
“0”: Fault when INTK shorted
“1”: Fault when INTK open
30
Slew Rate [A/s]
Module start-up slew rate value
Table 4:
EEPROM Structure
