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3.2.3
ON/OFF Control by Enable
SIGNAL RETURN and ENABLE control are isolated from the output terminals and"-SENSE".
3.2.4
Output Voltage Programming by Built-in Potentiometer
Output Voltage of RFE2500 Series can be trimmed by potentiometer between approximately 80%-120% for
24V, 48V and 80%-110% for 12V of nominal output voltage (For Output voltage limits see Graph below).
3.2.5
Output Voltage Programming by PMBus (Optional)
Output Voltage of RFE2500 Series can be programmed by PMBus between approximately 80%-120% for 24V, 48V and
80%-110% for 12V of nominal output.
For section 3.2.4, 3.2.5 and 3.2.6 Current programming pin (J1-4) must not be left open.
RFE2500
ENABLE
J1-9
SIGNAL RETURN J1-19
Figure 3–4:
RFE2500
VOLTAGE PROG.
Figure 3–5:
Control by Ex. Potentiometer
Vout
Voltage Trimmer by Potentiometer
60
50
40
38.4
30
20
19.2
10
9.6
0
0%
Potentiometer position
Figure 3–6:
Output Voltage Limits
RFE2500
VOLTAGE PROG.
Figure 3–7:
Programming by PMBus
ATTENTION:
Switch closed: Output ON
Switch open:
Output OFF
Control by ENABLE
J1-3
TRIM
J1-13
58
RFE2500-48
48
RFE2500-24
29
24
RFE2500-12
13.2
12
........
50%
100%
J1-3
V_REF
J1-5
13
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