Danfoss VLT AutomationDrive FC 360 - 9.4.13 Process Words (PCD); 9.5 Examples; 9.5.1 Writing a Parameter Value; 9.5.2 Reading a Parameter Value

9.4.13 Process Words (PCD)
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 PCD 2
Control telegram (master to follower control word) Reference value
Control telegram (follower to master) status word Present output frequency
9.5 Examples
9.5.1 Writing a Parameter Value
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]:
l IND = 0000 hex.
l PWEHIGH = 0000 hex.
l PWELOW = 03E8 hex.
Data value 1000, corresponding to 100 Hz, see the chapter 9.4.12 Conversion.
The telegram looks like the Figure 57.
e30ba092.10
E19E
0000
0000 03E8
H H H H
PKE
IND
PWEPWE
high low
Figure 57: Telegram
 NOTICE
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 Figure 58.
e30ba093.10
119E
0000
0000 03E8
H H H H
PKE
IND
PWEPWE
high low
Figure 58: Response from Master
9.5.2 Reading a Parameter Value
Read the value in parameter 3-41 Ramp 1 Ramp Up Time.
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Design Guide | VLT® AutomationDrive FC 360