Danfoss VLT AutomationDrive FC 360 Design Manual page 100

Design Guide | VLT® AutomationDrive FC 360
Process Words (PCD)
9.4.13
The block of process words is divided into 2 blocks of 16 bits, which always occur in the defined sequence.
Table 38: Process Words (PCD)
PCD 1
Control telegram (master to follower control word)
Control telegram (follower to master) status word
Examples
9.5
Writing a Parameter Value
9.5.1
Change parameter 4-14 Motor Speed High Limit [Hz] to 100 Hz.
Write the data in EEPROM.
PKE = E19E hex - Write single word in parameter 4-14 Motor Speed High Limit [Hz]:
IND = 0000 hex.
l
PWEHIGH = 0000 hex.
l
PWELOW = 03E8 hex.
l
Data value 1000, corresponding to 100 Hz, see the chapter
The telegram looks like the Figure
E19E H 0000
PKE
Figure 57: Telegram
Parameter 4-14 Motor Speed High Limit [Hz] is a single word, and the parameter command for write in EEPROM is E. Parameter
4-14 Motor Speed High Limit [Hz] is 19E in hexadecimal.
The response from the follower to the master is shown in the
119E H 0000
PKE
Figure 58: Response from Master
Reading a Parameter Value
9.5.2
Read the value in parameter 3-41 Ramp 1 Ramp Up Time.
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57.
H 0000 H
IND PWE high
H 0000 H
IND PWE high
PCD 2
Reference value
Present output frequency
9.4.12 Conversion.
03E8 H
PWE
low
NOTICE
Figure 58.
03E8 H
PWE
low
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