MEAN WELL ELN-30-48 用户手册
Dimming Control (Optional)
Vdc:1.1~10V
Vdc
(2)PWM (P type, & : ELN-30-
+
DIM+
f
t1
t1
t1+t2
f: 100Hz ~ 3KHz
Duty=
,0 ~ 100%
t2
V
f
DIM-
(1)1.1~10V (D type, & : ELN-30-
Lo:0V
Hi:10V
0
0%
1.1
11%
15%
27.5%
37.5%
60%
77.5%
87.5%
95%
2
20%
3
30%
4
40%
5
50%
6
60%
7
70%
8
80%
9
90%
10
100%
DC In put
Duty C ycle
10%
10%
0%
0%
20%
20%
30%
30%
40%
40%
50%
50%
60%
60%
70%
70%
80%
80%
90%
90%
100%
100%
5%
47.5%
30W Single Output Switching Power Supply
E L N - 3 0
s e r i e s
File Name:ELN-30-SPEC 2012-12-26
Level of output current can be adjusted through the dimming control function.
When there is no signal sending to the control wires (open circuit between the two control wires ), the power s upply
unit will operate as 0V (D-type) or 0% duty (P-type) of input signal and hence the output current will be zero.
unit will operate as 0V (D-type) or 0% duty (P-type) of input signal and hence the output current will be zero.
12 D)
12 P)