参数资料
型号: FPSS1U
厂商: TDK-Lambda Americas Inc
文件页数: 23/57页
文件大小: 0K
描述: RACK 3 SLOT FOR FPS1000
视频文件: Redundant Power Systems
标准包装: 1
系列: FPS
附件类型: 机架系统
适用于相关产品: FPS1000 系列
配用: 285-1239-ND - PWR SUP FNT END 48V 1008W 21A
285-1238-ND - PWR SUP FNT END 32V 992W 31A
285-1237-ND - PWR SUP FNT END 24V 960W 40A
其它名称: 285-1240
7.3 Block diagram of the I 2 C option
Refer to Fig 7-1 for description of the I 2 C block diagram and for typical application.
A0
A1
A2
REGISTER
A0
A1
A2
ADC
Output Fail
OTP
Temperature Alarm
Fan Fail
AC Input Fail
Output voltage
Output current
Temperature
A0
A1
A2
Fig 7-1: I 2 C option bloack diagram
A0
A1
A2
EEPROM
Serial CLOCK
Serial DATA
7.4 Operation and functions
7.4.1. Digital status
Digital status functions are provided by a PCF8574, 8-bit Register. It provides a single 8-bit word when read by the
I 2 C controller. Fault is indicated by "1" and Good level is indicated by "0".
Refer to Table 7-1 for the register information.
BIT
FUNCTION MEANING
0
1
2
3
4
5
6
7
Output Fail
Over Temperature Protection
Temperature Alarm
Fan Fail
AC Input Fail
Not Used
Not Used
Not Used
Output voltage is <80% +/- 5% of Vout rated
Internal temperature is over 80 ° C. Supply turns off.
Internal temperature is over 70 ° C. Supply is on.
Failure of an internal fan.
AC Input <85Vac
Always "0".
Always "0".
Always "0".
Table 7-1
PCF8574 slave address:
Bit
Value
7
0
6
1
5
0
4
0
3
A2
2
A1
1
A0
0
R/W
7.4.2 EEPROM functions
A 256 bytes EEPROM included in the I 2 C option. The EEPROM type is AT24C02 and it is programmed at the factory
with the data shown in Table 7-2.
ADDRESS BYTES
DATA
0
4
20
40
56
72
88
104
254
4
16
20
16
16
16
16
16
2
Number of fields
Manufacturer
Serial number
Revision
Country of manufacture
Model name
Output voltage
Date of manufacture
Checksum
Table 7-2
The slave EEPROM address is:
Bit 7 6
Value 1 0
5
1
4
0
3
A2
2
A1
1
A0
0
R/W
20
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