Programmable Maximum Output Voltage (Vout_Max); Programming Output Current Limit; Enabling / Disabling Monitoring Filter - Tdk-Lambda Rfe2500 Serie Bedienungsanleitung

5.3.5

Programmable Maximum Output Voltage (VOUT_MAX)

The output Voltage can be programmed using the "Direct data Format".
Please refer to Table 5-1 for the Coefficients to be used for calculating the Voltage Programming.
Command Used
24h
Example: Power Supply RFE2500-24;
To program the maximum programmable output voltage to 29V.
Send (853x29+(-15360))/10 = 938 (DEC).
5.3.6

Programming Output Current Limit

The accuracy of the Current Limit Programming is +/-8%.
It is possible to program the OCP with the PMBUS. The OCP can be programmed between 50%~110% of nominal load
current. Please refer to Section 1.1 for the current limits at respective levels.
The output Current can be programmed using "Direct data Format".
Please refer to Table 5-1 for the Coefficients to be used for calculating the Current Programming.
During Current programming, Vout Max must be programmed to maximum limit.
Command Used
21h
When using the PMBUS to program the current limit, the output voltage is set to the rated value as a default.
To set the output voltage to different level, Please refer to Section 3.2.5; 3.2.6.
Example: Power Supply RFE2500-48;
To program the Current Limit to 100%, send (146x100+(-5830))/10 = 877 (DEC);
Read the actual Current (Ex: 53A) / Accuracy is (52-53)/60(*1)x100 = 1.6%.
Supply (*1)
RFE2500-12
RFE2500-24
RFE2500-48
5.3.7

Enabling / Disabling Monitoring Filter

Monitoring filter can be enabled in order to reduce the effect of noise on the readback data.
Command Used
D6h
D6h
Type
R/W Word
Type
R/W Word
IMPORTANT:
Type
R/W Byte
R/W Word
24
#Data Bytes
2
#Data Bytes
2
Full Scale (*1)
240A
120A
60A
#Data Bytes
00h=OFF
01h=ON