CPFE1000FI SERIES
POWER SUPPLY
OPERATION MANUAL
27
19 August 2020
5.- Operation and Functions
5.1 Digital status
Digital status functions are provided by a status byte register. This is an 8-bit word when read by the I
2
C
controller.
Status Byte:
Address: 07
Bytes: 1
Example for CPFE1000Fi12 model:
Get the Hexadecimal number: 27
Convert the Hexadecimal number to Binary number: 00100111
Binary number is read from right to left, so for our example:
Bit
Function
Description
0
On_Off status
0 = Unit On ,
1 = Unit Off
ON/OFF status on the I2C command.
1
Enable
0 = Good ,
1 = Bad
See Section 13 for Output voltage threshold level above which
the Power ON signal is LOW (Good) and level below
which the signal is HIGH (Bad).
2
IOG
0 = Good ,
1 = Bad
Good if main Inverter is working OK,
Bad is main inverter stops working or it's working abnormally
3
OTW
0 = Good ,
1 = Warning
Good if base plate temperature is < ~80C,
Warning if base plate temperature is > ~80C, unit is ON
4
OTG
0 = Good ,
1 = Bad
Good if base plate temperature is < ~100C,
Bad if base plate temperature is >~100C, unit in OTP status
5
VoutOK
0 = Good ,
1 = Bad
Good if Vout is present,
Bad if not Vout is present
6
IOK
0 = Good ,
1 = Bad
Good if Iout is below or nom current,
Bad if Iout is in over current condition
7
AC_OK
0 = Good ,
1 = Bad
Good if AC is present,
Bad if AC is Lost
Function
Bit
Description
On_Off status
1
Unit is OFF
Enable
1
Vout < 6 volts
IOG
1
Main Inverter stops working
OTW
0
Base plate temperature <90C
OTG
0
Base plate temperature <100C, not
OTP
VoutOK
1
Vout is not present
IOK
0
Unit is not in OCP condition
AC_OK
0
AC Input Voltage Present
