Page
9
of
11
TDK-Lambda
DBM20
INSTRUCTION MANUAL
PA640-04-01B
5.2. Mounting spacing vs. airflow
5.3. terminal on input/output connector
terminal must be connected to the Protective earth
terminal of the equipment. If not connected to the
Chassis(Conductor), the conducted noise, radiation noise
and output noise will increase.
5.4. Buffer Module mounting on DIN RAIL (TS35
or equivalent)
Make sure input and output wires are disconnected before
mounting buffer module onto rail
5.4.1 Refer to figure 14.
5.4.2 Tilt the unit slightly rearwards, fit the unit
over top hat rail
Figure 14
Figure 13
Do not exceed the buffer derating. Please refer to section 6. Leave enough space surround the units to ventilate heat
efficiently.
Minimum Installation clearances:
40mm on top, 20mm at the bottom, A=5mm which is recommended on the left and right side when products are permanently
loaded with full 480W in Ready mode.
In case the adjacent device is a heat source, A=15mm clearance is recommended.
The ambient temperature (T
a
) is reference 20mm from the bottom of the unit.
2 0 m m
o r
m o re
2 0 m m
o r
m o re
4 0 m m
o r
m o re
4 0 m m
o r
m o re
A ir Flo w
A
A
D ISC H A R G IN G
C H A R G IN G
2 4 V D C /2 0A
+ V
D B M 2 0
1
+ V ‐V ‐V
2
3
4
4 +
3 B u ffe r
2 R e ad y
1 In h ib it
D ISC H A R G IN G
C H A R G IN G
24 V D C /20 A
+ V
D B M 2 0
1
+ V ‐V ‐V
2
3
4
4 +
3 B u ffe r
2 R e a d y
1 In h ib it
D R F 4 8 0 ‐2 4 ‐1
2 4 V D C /20 A
+ V + V ‐V ‐V
D C
O K
D C O K
V . A D J
P E A K
10 0 ‐2 4 0 V A C
N
L
TD
TD
TD
F IX E D M O D E
V IN ‐1
B u ffe r
Le v e l
FIX E D M O D E
V IN ‐1
B u ffe r
L e ve l
