Coil Number
Description
Signal Direction
1-16
Frequency converter control word (see table below)
Master to slave
17-32
Frequency converter speed or set-point reference Range 0x0 – 0xFFFF (-200% ...
~200%)
Master to slave
33-48
Frequency converter status word (see table below)
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 frequen-
cy converter.
66-65536
Reserved
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 freq.
No freeze freq.
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
Set up MSB
16
No reversing
Reversing
Frequency converter control word (FC profile)
Coil
0
1
33
Control not ready
Control ready
34
Frequency converter not
ready
Frequency converter ready
35
Coasting 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 freq. 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
Frequency converter status word (FC profile)
Holding registers
Register Number
Description
00001-00006
Reserved
00007
Last error code from an FC data object interface
00008
Reserved
00009
Parameter index*
00010-00990
000 parameter group (parameters 001 through 099)
01000-01990
100 parameter group (parameters 100 through 199)
02000-02990
200 parameter group (parameters 200 through 299)
03000-03990
300 parameter group (parameters 300 through 399)
04000-04990
400 parameter group (parameters 400 through 499)
...
...
49000-49990
4900 parameter group (parameters 4900 through 4999)
50000
Input data: Frequency converter control word register (CTW).
50010
Input data: Bus reference register (REF).
...
...
50200
Output data: Frequency converter status word register (STW).
50210
Output data: Frequency converter main actual value register (MAV).
* Used to specify the index number to be used when accessing an indexed parameter.
VLT
®
HVAC Drive Design Guide
7 RS-485 Installation and Set-up
MG.11.B9.02 - VLT
®
is a registered Danfoss trademark
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