Danfoss VLT AutomationDrive Design Guide

Process block (PCD)
The PCD is made up of a data block of 4 bytes (2 words) and contains:
- Control word and reference value (from master to slave)
- Status word and present output frequency (from slave to master)
ADRLGESTX PCD1 PCD2 BCC
130BA269.10
Parameter block
The parameter block is used to transfer parameters between master and slave. The data block is made up of 12 bytes (6
words) and also contains the process block.
PKE INDADRLGESTX PCD1 PCD2 BCC
130BA271.10
PWE
high
PWE
low
Text block
The text block is used to read or write texts via the data block.
PKE IND
130BA270.10
ADRLGESTX PCD1 PCD2 BCCCh1 Ch2 Chn
11.6.7 The PKE Field
The PKE field contains two sub-fields: Parameter command and response AK, and Parameter number PNU:
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
130BA268.10
PKE IND
PWE
high
PWE
low
AK PNU
Parameter
commands and replies
Parameter number
Bits no. 12-15 transfer parameter commands from master to slave and return processed slave responses to the master.
RS-485 Installation and Set... FC 300 Design Guide
258 MG.33.BD.02 - VLT
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Danfoss VLT AutomationDrive Specifications

General

Supply Voltage	3 x 200-240 V ±10% 3 x 380-500 V ±10% 3 x 525-600 V ±10%
Enclosure	IP20
Output Power Range	0.25 kW - 1.5 MW
Communication Protocols	Modbus RTU
Protection Features	Overcurrent, Overvoltage, Undervoltage, Short circuit, Ground fault, Motor overload
Ambient Temperature Range	-10°C to +50°C (14°F to 122°F)