Danfoss iC2, Application Manual

Page: 82 / 292

Table 29: Conversion
Conversion index Conversion factor
74 3600
2 100
1 10
0 1
-1 0.1
-2 0.01
-3 0.001
-4 0.0001
-5 0.00001
6.1.6.2.13
Process Words (PCD)
The block of process words is divided into 2 blocks of 16 bits, which always occur in the defined sequence.
Table 30: Process Words (PCD)
PCD 1 PCD 2
Control telegram (master->follower control word) Reference value
Control telegram (follower->master) status word Present output frequency
6.1.6.3
Examples
6.1.6.3.1
Overview of Examples
Bits 0–11 transfer parameter numbers. For more information on parameter number, see 7.1 Reading the Parameter Table . As an example,
for P 5.4.2 Operation Mode , the parameter number is 100.
6.1.6.3.2
Writing a Parameter Value
Change P 5.8.2 Motor Speed High Limit [Hz] to 100 Hz.
Write the data in EEPROM.
PKE = E19E hex - Write single word in P 5.8.2 Motor Speed High Limit [Hz] . The parameter number is 414.
l
IND = 0000 hex.
l
PWE
HIGH
= 0000 hex.
l
PWE
LOW
= 03E8 hex.
Data value 1000, corresponding to 100 Hz, see 6.1.6.2.12 Conversion .
The telegram looks like the following illustration.
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Application Guide | iC2-Micro Frequency Converters