GB-3
D
GB
F
NL
I
E
Installing the BGT
CAUTION
Please observe the following to ensure that the PFA and
the automatic burner control units PFU are not damaged
during operation:
– It must be ensured that the module subrack is well
ventilated in order to avoid overheating.
– In the case of several module subracks mounted on
top of one another, we recommend removing the per-
forated plates
A
from between the module subracks,
and inserting a rack-mounted fan
B
underneath the
module subracks.
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B
A
132
mm
483 mm
465 mm
200 mm
58
mm
A
DANGER
Electric shocks can be fatal! Module subracks must be
integrated in the equipotential bonding system.
▷
Installation position: any.
▷
Distance between PFU and burner: max. 100 m
(328 ft).
Wiring the BGT
Disconnect the system from the electrical power sup-
ply.
▷
Use a resistor with low impedance at high frequencies
for grounding the BGT.
▷
Ensure an equipotential bond between the various
slaves.
▷
Switch on the terminal resistor on the first (PLC) and
last (BGT/PFA) station on the Profibus plug – see page
▷
There are four digital inputs (X10.1 to X10.4) and four
digital outputs (X10.6 to X10.9) available.
▷
Load per input: 24 V DC, ± 10%, < 10 mA.
▷
Load per output: relay contact, max. 1 A, 24 V (not
fused internally).
BGT SA-9U/DP
Wire as shown on the circuit diagram, see page 8
(BGT SA-9U/1DP connection diagram).
BGT SA-8U/DP
Wire as shown on the circuit diagram, see page 10
(BGT SA-8U/1DP connection diagram).
Setting the PFA
▷
All the unit-specific parameters for the PFA are saved
in a device master data file (GSD file, see www.
docutheck.com).
Copy device master data for the PFA into the program-
mable logic controller (PLC).
▷
The steps required to copy the file are described in
the instructions for the PLC.
Configure the PROFIBUS DP using the appropriate
tools for the PLC you are using.
▷
The PFA will automatically identify the baud rate (max.
1.5 Mbit/s).
▷
The max. range depends on the baud rate:
Baud rate
Range
[kBit/s]
[m]
[yd]
93.75
1200
1300
187.5
1000
1090
500
400
545
1500
200
220
▷
The ranges may be increased by using repeaters. Do
not connect more than three repeaters in series.
PFA 700
▷
Input/output bytes: inputs 5 bytes, outputs 3 bytes.
Input bytes
(PFA
▶
master)
Bit Byte 0
Byte 1
Byte 2
Byte 3
Byte 4
0
1, 2
ϑ
A
P
A
P
DI
on
on
on
PFU 1
1, 2
ϑ
A
P
A
P
DI
on
on
on
PFU 9
1, 2
ϑ
A
P
A
P
DI
on
on
on
PFU 8
1, 2
ϑ
A
P
A
P
DI
on
on
on
PFU 7
1, 2
ϑ
A
P
A
P
DI
on
on
on
PFA
1
1, 2
ϑ
A
P
A
P
DI
on
on
on
PFU 2
1, 2
ϑ
A
P
A
P
DI
on
on
on
PFU 1
1, 2
ϑ
A
P
A
P
DI
on
on
on
PFU 9
1, 2
ϑ
A
P
A
P
DI
on
on
on
PFU 8
2
1, 2
ϑ
A
P
A
P
DI
on
on
on
PFU 3
1, 2
ϑ
A
P
A
P
DI
on
on
on
PFU 2
1, 2
ϑ
A
P
A
P
DI
on
on
on
PFU 1
1, 2
ϑ
A
P
A
P
DI
on
on
on
PFU 9
3
1, 2
ϑ
A
P
A
P
DI
on
on
on
PFU 4
1, 2
ϑ
A
P
A
P
DI
on
on
on
PFU 3
1, 2
ϑ
A
P
A
P
DI
on
on
on
PFU 2
1
4
1, 2
ϑ
A
P
A
P
DI
on
on
on
PFU 5
1, 2
ϑ
A
P
A
P
DI
on
on
on
PFU 4
1, 2
ϑ
A
P
A
P
DI
on
on
on
PFU 3
2
5
1, 2
ϑ
A
P
A
P
DI
on
on
on
PFU 6
1, 2
ϑ
A
P
A
P
DI
on
on
on
PFU 5
1, 2
ϑ
A
P
A
P
DI
on
on
on
PFU 4
3
6
1, 2
ϑ
A
P
A
P
DI
on
on
on
PFU 7
1, 2
ϑ
A
P
A
P
DI
on
on
on
PFU 6
1, 2
ϑ
A
P
A
P
DI
on
on
on
PFU 5
4
7
1, 2
ϑ
A
P
A
P
DI
on
on
on
PFU 8
1, 2
ϑ
A
P
A
P
DI
on
on
on
PFU 7
1, 2
ϑ
A
P
A
P
DI
on
on
on
PFU 6
1, 2
ϑ
A
P
A
P
DI
on
on
on
PFA
