Trane VarioTrane TR1 2800 Series, Руководство по эксплуатации

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Some frequency converters have parameters to
which a text may be written. To be able to write a text
via the PWE block the parameter command (AK) must
be set to 'F' Hex.
For a write command the text must have the follow-
ing format:
Data types supported by frequency transformer:
Data types Description
3 Integer 16
4 Integer 32
5 Unsigned 8
6 Unsigned 16
7 Unsigned 32
9 Text string
Unsigned means that there is no operational sign in
the telegram.
Example - Write a parameter value:
Parameter 202
Output frequency high limit, f MAX to be
changed to 100 Hz. The value must be recalled after
a mains failure, so it is written in EEPROM.
PKE = E0CA Hex - Write for parameter 202 Output
frequency high limit, f MAX
IND = 0000 Hex
PWEHIGH = 0000 Hex
PWELOW = 03E8 Hex - Data value 1000, corre-
sponding to 100 Hz, see conversion.
The response from the slave to the master will be:
Example - Selection of a data value:
You wish to select kg/hour [20] in parameter 416
Process units . The value must be recalled after a mains
failure, so it is written in EEPROM.
PKE = E19F Hex - Write for parameter 416 Process
units
IND = 0000 Hex
PWEHIGH = 0000 Hex
PWELOW = 0014 Hex - Select data option kg/hour
[20]
The response from the slave to the master will be:
60 TR1 2800 Series VFD
Programming