MEAN WELL RCP-1UT [8/8] Series
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MEAN WELL RCP-1UT [8/8] Series

MEAN WELL RCP-1UT [8/8] Series
RCP
seri e s
6. Analog Function (Read Only)
7.EEPROM Function (Read Only)
6.1 Analog function are provided by a single PCF8591 4-channel 8-bit A/D converter. When this device is read by the I C bus controller, it provides an 8-bit
6.2 A/D scaling
The EEPROM is a 2048 bit (256 byte) device which is preprogrammed at the factory with the following data :
word with the following information:
The voltage reading is made inside the power supply unit before the "Oring diode" and is typically 0.5V higher than the actual output voltage.
The following table for the scaling should be employed:
VALUE = BYTE VALUE x RESOLUTION
PCF8591 slave address
PCF8591 control byte
2
3
4
Bit
Bit
Output Voltage
Address
12V
4
12V
56
12V
104
24V
20
24V
72
24V
254
48V
40
48V
88
48V
Range
Bytes
0~16V
16
16
16
16
16
16
0~33V
20
0~65V
0~80A
0~55A
0~30A
0~100
℃
0~100
℃
2
0~100
℃
Scaling
Data
0.0625V/Bit
Manufacturer
Serial Number
Revision
Country of production
Model Name
Output Voltage
Date of production
Check Sum
0.129V/Bit
0.254V/Bit
0.312A/Bit
0.215A/Bit
0.117A/Bit
0.391 /Bit
℃
0.391 /Bit
℃
0.391 /Bit
℃
Tolerance
±5%
A/D Channel 1
A/D Channel 2
A/D Channel 3
Voltage
Current
Temperature
+3%,-5%
+2%,-5%
±10%
±10%
±10%
±3
℃
±3
℃
±3
℃
Value
Value
2
1
A/D Channel FUNCTION
Output Voltage
Output Current
Internal Temperature
Not Used
7
7
1
0
6 5
6 5
0 0
0 0
4
4
1
0
3
3
A2
0 0
2
2
A1
1
1
A0
0
0
0
0
1
0
1
0
: Output Voltage
: Output Current
: Internal Temperature
R/W
1000 ~ 3000W Front End Power System
Fi le Name:RCP series-SPEC 2015-02-11
5.2 Digital Function (Read Only)
Digital function are provided by a PCF8574 8-bit I/O port device. When this device is read by the I C bus controller, a single 8-bit word provides the
following information.
BIT FUNCTION GOOD STATE FAIL STATE MEANING
Input power fail
Output voltage is less than specification
Internal temperature is over 60 . PSU turns on℃
Temperature exceeds nominal operating limit. PSU turns off
Failure of an internal fan
Not used
Not used
Not used
0 1
1
1
1
1
0
0
0
0
------ ------
------ ------
------ ------
0 AC Input Fail
1 Output Power Good / Fail
2 Temperature Warning
3 Over Temperature Protection
4 Fan Fail Warning
5 Not Used
Not Used
Not Used
6
7
2
EEPROM slave address
Bit 7 6 5 4 3 2 1 0
Value 1 0 1 0 A2 A1 A0 R/W
PCF8574 slave address
Bit 7 6 5 4 3 2 1 0
Value 0 1 0 0 A2 A1 A0 R/W
Read : 1
Write : 0

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