Danfoss VLT Micro Drive FC 51 Series Operating Instructions Manual page 29

5 Modbus RTU
Coil number
1 - 16
17 - 32
33 - 48
49 - 64
65
5
66 - 65536
Coil
01 Preset reference LSB
02 Preset reference MSB
03 DC brake
04 Coast stop
05 Quick stop
06 Freeze outp
07 Ramp stop
08 No function
09 No jog
10 Ramp 1
11 Data not valid
12 Relay 1 off
13 Not used
14 Setup 1
15 Not used
16 No reversing
Frequency converter control word (FC profile)
Register number
00001 – 00006
00007
00008
00009
00100 – 00999
01000 – 01999
02000 – 02999
03000 – 03999
04000 – 04999
...
49000 – 49999
50000
50010
...
50200
50210
Table 5.1: Holding Registers
* Used to specify the index number to be used when accessing an indexed parameter
28
Description
Frequency converter control word (see table below) Master to slave
Frequency converter speed or set-point reference
Range 0x0 - 0xFFFF (-200% ... ~ 200%)
Frequency converter status word (see table below) Slave to master
Open loop mode: Frequency converter output fre-
quency
Closed loop mode: Frequency converter feedback
signal
Parameter write control (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
Reserved
0 1
No DC brake
No coast stop
No quick stop
No freeze outp
Start
Reset
Jog
Ramp 2
Data valid
Relay 1 on
Not used
Setup 2
Not used
Reversing
MG.02.A4.02 - VLT
®
VLT Micro Drive FC 51 Operating Instructions
Signal direction
Master to slave
Slave to master
Master to slave
Coil 0
33 Control not ready
34 Unit not ready
35 Coasted
36
37
38 Not used
39
40 No warning
41 Not on reference
42 Hand mode
43 Out of freq. range
44 Not running
45 No res. brake fault
46 No voltage warning
47 Not in current limit
48 No thermal warning
Frequency converter status word (FC profile)
Description
Reserved
Last error code. See section Exception and Error Codes
Reserved
Parameter index*
000 parameter group (parameters 001 through 099)
100 parameter group (parameters 100 through 199)
200 parameter group (parameters 200 through 299)
300 parameter group (parameters 300 through 399)
400 parameter group (parameters 400 through 499)
...
4900 parameter group (parameters 4900 through 4999)
Input data: Frequency converter control word register (CTW).
Input data: Bus reference register (REF).
...
Output data: Frequency converter status word register (STW).
Output data: Frequency converter main actual value register (MAV).
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1
Control ready
Unit ready
Not coasted
Error, tripped
Error, no trip
Not used
Error, trip locked
Warning
On reference
Auto mode
In frequency range
Running
Resistor brake fault
Voltage warning
Current limit
Thermal warning
.