Serial Communication Reference - Danfoss VLT 2800 Design Manual

Programming
Bit
00
01
02 Coasting stop
03
04
05
06
4 4
07
08
09 Local control
10
frequency range
11
12
13
14
15
Table 4.16 Bit Definition
Bit 00, Control not ready/ready
Bit 00='0' means that the Bit 00, 01 or 02 in the control
word are '0' (OFF1, OFF2 or OFF3) or the frequency
converter is not ready for operation.
Bit 00='1' means that the frequency converter is ready for
operation.
Bit 01, Drive ready
See description in chapter 4.7.7 Status Word According to FC
Profile.
Bit 02, Coasting stop
Bit 02='0' means that bits 00, 02 or 03 in the control word
are '0' (OFF1, OFF3 or Coasting stop).
Bit 02='1' means that bits 00, 01, 02 and 03 in the control
word are '1', and that the frequency converter has not
tripped.
Bit 03, No trip/trip
See description in chapter 4.7.7 Status Word According to FC
Profile.
Bit 04, ON 2/OFF 2
Bit 04='0' means that bit 01 in the control word='1'.
Bit 04='1' means that bit 01 in the control word='0'.
Bit 05, ON 3/OFF 3
Bit 05='0' means that bit 02 in the control word='1'.
Bit 05='1' means that bit 02 in the control word='0'.
Bit 06, Start enable/start disable
Bit 06='1' after reset of a trip, after activation of OFF2 or
OFF3 and after connection of mains voltage. Start disable is
reset by setting bit 00 in the control word to '0', and bit
01, 02 and 10 are set to '1'.
Bit 07, Warning
See description in chapter 4.7.7 Status Word According to FC
Profile.
114
Bit=0
Control ready
Drive ready
No trip
ON 2
ON 3
Start enable Start disable
Warning
Speed ref. Speed=ref.
Ser. communi.
Outside Frequency limit
Motor running
Voltage warn.
Current limit
Thermal warn.
Danfoss A/S © Rev. May/2014 All rights reserved.
Design Guide
Bit 08, Speed
Bit=1
See description in chapter 4.7.7 Status Word According to FC
Profile.
Bit 09, No warning/warning
Trip
See description in chapter 4.7.7 Status Word According to FC
OFF 2 Profile.
OFF 3
Bit 10, Speed ref/speed = ref.
See description in chapter 4.7.7 Status Word According to FC
Profile.
Bit 11, Running/not running
See description in chapter 4.7.7 Status Word According to FC
Profile.
OK
Bit 13, Voltage warning high/low
See description in chapter 4.7.7 Status Word According to FC
Profile.
Bit 14, Current limit
See description in chapter 4.7.7 Status Word According to FC
Profile.
Bit 15, Thermal warning
See description in chapter 4.7.7 Status Word According to FC
Profile.

4.7.10 Serial Communication Reference

Illustration 4.33 Serial Communication Reference
The serial communication reference is transferred to the
frequency converter as a 16-bit word. The value is
transferred in whole numbers 0 to ±32767 (±200%).
16384 (4000 Hex) corresponds to 100%.
The serial communication reference has the following
format: 0-16384 (4000 Hex) ≅ 0-100% ( Parameter 204
Minimum ref.-Parameter 205 Maximum ref.).
It is possible to change the direction of rotation via the
serial reference. This is done by converting the binary
reference value to 2' complement. See example.
Example - Control word and serial communication ref.:
The frequency converter is to receive a start command and
the reference is to be set to 50% (2000 Hex) of the
reference range.
Control word = 047F Hex ⇒ Start command.
Reference = 2000 Hex ⇒ 50% reference.
MG27E402