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10
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11
TDK-Lambda
DBM20
INSTRUCTION MANUAL
PA640-04-01B
5.4.3 Refer to figure 15 below.
5.4.4 Slide it downward until it hits the stop.
5.4.5 Press against the bottom front side for locking.
Shake the unit slightly to check the locking action.
5.4.6 In order to tighten the unit mounting, the Din rail
stopper attached on both sides of the unit is
recommended.
5.5. Buffer Module removal from DIN RAIL
5.5.1 Refer to figure 16.
5.5.2 Switch off power and disconnect your system
from the supply network. Pull the Latch on the rear
lower edge of the unit downwards and gently lift lower
front edge of the unit (tipping upwards) and remove it.
6. Buffer Derating – DBM20
7. The Life Expectancy
The life expectancy of buffer module depends on the life of
the built-in aluminium electrolytic capacitors. The life is
described in reliability data.
The life of the aluminium electrolytic capacitor varies
depending on the method of mounting the buffer module, the
load current and the ambient temperature. Please refer to the
“Electronic Capacitor Lifetime”.
Please do not use the product which passed over the life
expectancy. There is a risk of unexpected buffer shutdown
and specifications may not be satisfied.
Please contact us for maintenance or exchange the product
which exceeded the life expectancy.
8. Wiring Method
Use all wires as thick and short as possible to make
lower impedance. Noise can be eliminated by attaching
capacitor to the load terminals.
For safety and EMI considerations, connect of
input/output connector to ground terminal of equipment.
Caution on use :
a)
Kindly keep the input wires as short as possible, this is
to avoid mistriggering of signals during dynamic load
conditions.
9. EMC
This model complies with the provisions of the EMC
directive and meets the following standards :
Emissions: EN55032 Class B, CISPR32-B
Immunity: EN61000-4-2, -3, -4, -5, -6
0
25
50
75
100
125
-25
0
25
50
75
100
BUFFER
C
URRENT
(
%
)
Ta (
o
C)
DERATING CURVE
Figure 16
Figure 15
REM OVAL LATCH
