B
DTRen-2008/SPA-5/LVA
Rev.:
a
Page 37
Bombardier Transportation (ZWUS) Polska Sp. z o.o.
4.4.9 EDZ-30
module
EDZ is a power module to control lamps of the control panel CP. One EDZ-30
module consists of two independent circuits. Each of circuits is responsible for the
activation of the lamp (green LED on means lamp activated from PLC) and
checking of the lamp circuit’s current (red LED on; not used in SPA-5/LVA).
The front panel of EDZ-30 module is shown below.
AMPLIFIER 1
Output 1
8
4
+U1
-U1
5
7
EDZ-30
Input 1
D1V
D1C
AMPLIFIER 2
Output 2
2
10
+U2
-U2
11
9
Input 2
D2V
D2C
1
3
EDZ-30 - internal scheme.
Figure 23
This
training
material
has
been
prepared
only
for
educational
purposes
and
it
isn't
technical
documentation.
