Kromschroder PFA 710 - Page 3

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 remov-
ing the perforated plates A from between the
module subracks, and inserting a rack-mounted
fan B underneath the module subracks.
88 88 88 88 88 88 88 88 8888
88 88 88 88 88 88 88 88 8888
88 88 88 88 88 88 88 88 8888
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
supply.
▷
Use a resistor with low impedance at high fre-
quencies for grounding the BGT.
▷ Ensure an equipotential bond between the vari-
ous slaves.
▷ Switch on the terminal resistor on the first (PLC)
and last (BGT/PFA) station on the Profibus plug–
see page 12 (Profibus plug for PFA).
▷ 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
programmable logic controller (PLC).
▷ The steps required to copy the file are described
in the instructions for the PLC.
 Configure the PROFIBUS DP using the appropri-
ate 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 repeat-
ers. 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