BeiJer BFI-H3 - Control from a Modbus Rtu Master

Beijer Electronics Frequency Inverter BFI-H3 KI00363B 2019-09
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5.10 Control from a Modbus RTU master
A Modbus RTU network with BFI-E3, BFI-H3 or BFI-P2 is connected as below:
Settings in BFI-H3 are speed setting is 115 200 bit/sec, 8 data bits, 1 stop bit, No Parity.
Hardware Function Comment
CAB 114 Shielded cable with one RJ45 and 3 wires marked
SDA, SDB and SG for screwte
rminals.
Cable length 3 m. Modbus RTU- pin7 and Modbus
RTU
+
p
in8
i
n
BFI.
CAB 113 Shielded cable with one RJ45 for BFI and one 9-pole
D
-
sub
for X2 pan
els
.
Cable legth 3 m. Built-in 120 ohm resistor in D-sub
b
etween
pin
7 and
pin
8
.
OPT-2-J45SP-BFI T-Connection of 2 serial cables into one drive. RJ45 male to BFI and 2 female RJ45 for network
connection
OPT
-
2
-
RJTRM
-
BFI
RJ45
with a
110 ohm resistor
.
To be put in the last BFI
-
splitter
.
Para-
meter
Name Default
settng
To be set Function
P1
-
12
Command Source
0
4
4
=
C
ontrol b
y
Modbus RTU
.
P1
-
14
Parameter Access
0
201
Get access
to
all
parameter
.
P5
-
01
Drive Fieldbus Adress
0
Stationnumber 0
-
63. First Drive should be stationnumber 1
P5
-
03
Baud Rate
115
9,6, 19,2, 38
,4,
57,6 or 115= kbs
P5-04 Data Format 0 0
0 or "n-1”= No Parity, 1 stop bit 1 or “n-2”= No parity, 2 stop bits
2
or
“0
-
1”
: Odd parity, 1 stop bit
3
or
“E
-
1”
=
Even parity, 1 stop bit
P5-05 Comm Loss Timeout 1,0
Drive behaviour if a communication command is not received within time
specified in this parameter.
Type of r
eaction decided in P5
-
06.
P5-06 Comm Loss Action 0
0: Trip and coast to stop 1: Ramp to stop and trip;
2: Ramp to stop and no trip
3: Preset speed 8 (P2
-
08)
P5-07 Fieldbus Ramp Ctrl 0
Decide which ramp for accelearation and deceleration to be used. 0: From
parameters
1:
From Modbus
RTU
2
1
DI1: Startsignal
+24 VDC
DI1 must always be closed to start
Modbus master RTU
SG
SDB
BFI
RDB
SDA
RDA
Put termination switch in 100 ohm
8
7
3
1 8
BFI
IP20
CAB 113
Patchcable
Cat 6
Modbus master
X2 panel
CAB 114
RS485 + Pin1
OPT-2-
RJTRM-
BFI
OPT-2-
J45SP
-
BFI
RS485 – Pin6
GND Pin5
Modbus master
Nexto Express
D+
D-
GND
BFI
IP
66