Flame Control - Honeywell Krom Schroder BCU 580 Technical Information

Function

3 .1 .4 Flame control

Ionization control in double-electrode operation
I
ϑ1
62 61
UVS control
uft
I
min
ϑ1
62 61
P73
uft
min
P73
BCU 580 · Edition 11.15l
5 6 7 8 9 10 11 12
c
c
24V
DC
3,15AT
88
5 6 7 8 9 10 11 12
p
c
c
u PZL
GZL
2
µC
24V
BCU 580..F1
DC
HT
3,15AT
P
88
P69 P70
P70 P70
p
u PZL
GZL
2
µC
BCU 580..F1
0,6 × I
N
L1 +24 V
UVD control
A voltage supply of 24 V DC is required to operate the
UV sensor for continuous operation UVD 1.
The 0 – 20 mA current output can be used to display
the flame signal. The cable to the control room must be
screened. The 0 – 20 mA current output is not required
for normal operation.
Depending on Parameter 79, the following connection
2
1
diagrams apply, see also page 73 (Pilot burner).
Alternating pilot burner (Parameter 79 = 0):
max. 1 A;
24 V DC,
250 V AC
V4
V3
V2 ϑ1
V1
2
1
ϑ2
mA
Permanent pilot burner (Parameter 79 = 1):
max. 1 A;
L1
24 V DC,
250 V AC
Luft
min
Luft
0 V N
(P40 = 2/3) => 51
V4
V3
0–20 mA
+
V2
ϑ1
V1
mA
P71
ϑ2
P72 P72
P73
I
62 61 5 6 7 8
c
24V
DC
24 V
1
0 V
2
UVD1
3
4
5
6
88
–
62 61 5 6 7 8
c
µC
BCU 580..F1
24V
DC
2
9 10 11 12
1
c
max.
24 V D
N
250 V A
3,15AT
V1
2
9 10 11 12
1
c
max.
24 V D
250 V A
22
3,15AT
V