Modbus telegram. Coil 127 decimal is addressed as coil
007Ehex (126 decimal).
Holding register 40001 is addressed as register 0000 in the
data address field of the telegram. The function code field
already specifies a holding register operation. Therefore,
the 4XXXX reference is implicit. Holding register 40108 is
addressed as register 006Bhex (107 decimal).
Coil
number
Description
Signal
direction
1–16
Frequency converter control word
(see
Master to slave
17–32
Frequency converter speed or
setpoint reference range 0x0–
0xFFFF (-200% ... ~200%).
Master to slave
33–48
Frequency converter status word
(see
Slave to master
49–64
Open-loop mode: Frequency
converter output frequency.
Closed-loop mode: Frequency
converter feedback signal.
Slave to master
65
Parameter write control (master to
slave).
Master to slave
0 = Parameter changes are written
to the RAM of the frequency
converter.
1 = Parameter changes are written
to the RAM and EEPROM of the
frequency converter.
66–65536 Reserved.
–
Table 7.15 Coil Register
Coil
0
1
01
Preset reference lsb
02
Preset reference msb
03
DC brake
No DC brake
04
Coast stop
No coast stop
05
Quick stop
No quick stop
06
Freeze frequency
No freeze frequency
07
Ramp stop
Start
08
No reset
Reset
09
No jog
Jog
10
Ramp 1
Ramp 2
11
Data not valid
Data valid
12
Relay 1 off
Relay 1 on
13
Relay 2 off
Relay 2 on
14
Set up lsb
15
–
16
No reversing
Reversing
Table 7.16 Frequency Converter Control Word (FC Profile)
Coil
0
1
33
Control not ready
Control ready
34
Frequency converter not
ready
Frequency converter ready
35
Coast stop
Safety closed
36
No alarm
Alarm
37
Not used
Not used
38
Not used
Not used
39
Not used
Not used
40
No warning
Warning
41
Not at reference
At reference
42
Hand mode
Auto mode
43
Out of frequency range
In frequency range
44
Stopped
Running
45
Not used
Not used
46
No voltage warning
Voltage warning
47
Not in current limit
Current limit
48
No thermal warning
Thermal warning
Table 7.17 Frequency Converter Status Word (FC Profile)
RS485 Installation and Set-...
Design Guide
MG18N202
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