84
Conversion
The different attributes for each parameter can be seen in the section
on factory settings.
Since a parameter value can only be transferred as a whole number,
a conversion factor must be used to transfer decimals.
Example:
Parameter 201: Minimum Frequency, conversion factor 0.1. If
parameter 201 is to be set to 10 Hz, a value of 100 must be trans-
ferred, since a conversion factor of 0.1 means that the transferred
value will be multiplied by 0.1. A value of 100 will, therefore, be
understood as 10.0.
Index Factor
74 3.6
2 100
110
01
-1 0.1
-2 0.01
-3 0.001
-4 0.0001
Conversion Table
Control Word
The control word is used for transmitting commands from a master
(PC) to a slave (drive).
Master➝Slave
1514131211109876543210Bit no.
Bit Bit = 0 Bit =1
00 Preset ref. lsb
01 Preset ref. msb
02 DC braking
03 Coasting stop
04 Quick stop
05 Freeze output frequency
06 Ramp stop Start
07 Reset
08 Jog
09 No function No function
10 Data not valid Data valid
11 Activate relay 1
12 Activate relay 2
13 Choice of setup lsb
14 Choice of setup msb
15 Reversing
Bit 00/01:
Bits 00 and 01 are used for choosing between the four pre-pro-
grammed references parameters 211 through 214, Preset Reference,
as shown in the table below.
Preset Reference Parameter Bit 01 Bit 00
121100
2 212 0 1
3 213 1 0
4 214 1 1
NOTE
Parameter 508, Choice of Preset Reference, is
used to choose how bits 00/01 are to be gated
with the corresponding functions of the digital
inputs.
Bit 02, DC BRAKE:
Bit 02 = 0 enables DC braking. Set braking current and duration in
parameter 114, DC Braking Current, and in parameter 115, DC
Braking Time.
NOTE
Parameter 504, DC Brake, is used for selecting
how bit 02 is to be gated with the correspond-
ing function of terminal 27.
Serial com.
ref.
Control
word
Data Type
Data type shows the type and length of the packet.
The data types shown in the table are supported by the drive.
Unsigned means there is no sign included in the packet.
Data type Description
3 Integer 16
4 Integer 32
5 Unsigned 8
6 Unsigned 16
7 Unsigned 32
9 Text string
Data Type Table
To Next Page
Loading...
