EUCHNER CES-A-UEA-04B (Multicode) - Manual (Page 7)

Operating Instructions Safety System CES-A-UEA-02B/CES-A-UEA-04B
7
Block diagram CES-A-UEA-02B
Trans-
ponder
Trans-
ponder
Kopf 1 Kopf 2
A B
0 V
UB
TST
0V
S
H11 H21 H12 H22 SH1 SH2
DI A 14 13 23 Y1 24 Y2
Demodulator
Filter
Verstärker
Komparator
KA KB
Kopf - HF - Multiplexer
( 1 aus 4 )
J2 J1
O1 O2
+24 V
KA KB
CPU-A (Typ 1)
LED
STAT E
OUT
DIA
Star t
CPU-B (Typ 2)
STA T E O U T DIA
Y
S
H2
H1
ON 1
2
5
6
Activation of the
teach-in operation with
jumper
on J1, J2
Read heads
Coded actuators
Trans-
ponder
Trans-
ponder
Head 1 Head 2
DC
+ 24 V
Operating
voltage
Demodulator
Filter
Amplifier
Comparator
Head selection
CPU-A
(type 1)
Head - RF - multiplexer
(1 of 2)
CPU-B
CPU-B
CPU-A
CPU-A
Start
CPU-B
(type 2)
DIP switch
+UB, 0 V Power supply
J1, J2 Short circuit bridge for teach-in operation
H11/H12/H21/H22 Connection for read heads 1 ... 2
SH1, SH2 Shield
TST Test input (see „Self-test with test input TST“ page 17)
O1 ... O2 Semiconductor monitoring outputs
DIA Diagnostics output
13, 14 Relay contact A connection, safety relay enable
23, 24 Relay contact B connection, safety relay enable
Y1, Y2 Feedback loop
S Start button connection (monitoring of the falling edge)