Azbil AUR355, User Manual

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12
Chapter 2. Installation and Wiring
„
Example of wiring with external devices
(terminals 1–24: sub-base; terminals 25–35: front connector)
z Flame sensor: UV sensor
F
G
Flame detection
circuit
Shutter drive
circuit
Flame sensor
Shutter coil
S1
S2
+
+
AUD300C/500C
flame detector
Flame output
Contact output common
Flame output
(with start check)
Flame relay N.C. output
L1 L2(N)
K3
Input
circuit
K5
Control
circuit
(CPU)
Contact reset
Start
Input
common
DC24 V
Flame voltage
output circuit
FV
+
FV
−
RS-485
DA
DB
SG
FL
SHUT
AL
DISP
switch
RESET
switch
K7 K8
K6
Loader jack
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
1
2
3
4
5
6
7
8
9
10
11
12
33
34
35
Display
Power circuit
2.5 A
Event output
25
35
Terminal layout of connector
for front wiring
K3: Start check relay
K5, K7, K8: Flame relay
K6:
Event relay
Handling Precautions
•
After mounting the connector for front wiring, secure it in place with the
mounting screw on the side of the connector.
•
Use the contact reset input (terminal 24) for one AUR only. Do not use the
terminal for contact reset input to other AUR355 devices.