Table of Contents
Advertisement
How to Control the Frequenc...
Bit 13, Voltage OK/limit exceeded
Bit 13="0" - there are no voltage warnings.
Bit 13="1" - the DC voltage in the frequency converters
intermediate circuit is too low or too high.
Bit 14, Torque OK/limit exceeded
Bit 14="0" - the motor current is lower than the torque
limit selected in 4-16 Torque Limit Motor Mode or
4-17 Torque Limit Generator Mode.
Bit 14="1" - the torque limits in 4-16 Torque Limit Motor
Mode and 4-17 Torque Limit Generator Mode have been
exceeded.
Bit 15, Timer OK/limit exceeded
Bit 15="0" - the timers for motor thermal protection and
VLT thermal protection, respectively, have not exceeded
100%.
Bit 15="1" - one of the timers has exceeded 100%.
5.5 DS 402 Control Profile
5.5.1 Control Word According to DSP 402
Profile
(Parameter 8-10=DSP 402 profile)
Master-slave
CTW
Bit
no.:
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Illustration 5.4 Control Word Profile
Bit
Bit value=0
00
Switch off
01
Disable voltage
02
Quick stop
03
Disable operation
04
Disable ramp
05
Freeze
06
Ramp stop
07
No function
08
09
10
11
Jog 1 OFF
12
13
Setup select (LSB)
14
Setup select (MSB)
15
Forward
Table 5.9 Definition of Control Bits
MCA 123 POWERLINK Operating Instructions
Speed ref.
Bit value=1
Switch on
Enable voltage
Run
Enable operation
Enable ramp
Run enable
Start
Reset
Reserved
Reserved
Reserved
Jog 1 ON
Reserved
Reversing
®
MG92C102 - VLT
is a registered Danfoss trademark
Explanation of the control bits
Bit 00, Switch OFF/ON
Bits 00, Switch OFF/ON
Bit 00="0" - executes transition 2, 6 or 8.
Bit 00="1" - executes transition 3.
Bit 01, Disable/Enable Voltage
Bit 01="0" - executes transition 9, 10 or 12.
Bit 01="1" - enables voltage.
Bit 02, Quick stop/Run
Bit 02="0" - executes transition 7, 10 or 11.
Bit 02="1" - quick stop not active.
Bit 03, Disable/enable Operation
Bit 03="0" - executes transition 5.
Bit 03="1" - enables operation.
Bit 04, Quick-stop/ramp
Bit 04="0" - executes transition 7 or 11, Quick stop.
Bit 04="1" - enables ramp.
Bit 05, Freeze output frequency/run enable
Bit 05="0" - the given output frequency is maintained even
if the reference is changed.
Bit 05="1" - the frequency converter is again able to
regulate, and the given reference is followed.
Bit 06, Ramp stop/start
Bit 06="0" - the frequency converter controls the motor
down to stop.
Bit 01="1" - gives a start command to the frequency
converter.
Bit 07, No function/reset
Reset of trip.
Bit 07="0" - there is no reset.
Bit 07="1" - a trip is reset.
Bit 08, 09 and 10
DSP402 reserved.
Bit 11, Jog 1 OFF/ON
Activation of pre-programmed speed in 8-90 Bus Jog 1
Speed
JOG 1 is only possible if Bit 04="0", and bit 00-03="1".
Bit 12
Danfoss reserved.
Bits 13/14, Selection of Setup
Bits 13 and 14 are used for choosing among the four
menu Set-ups in accordance with Table 5.10:
5
5
19
Advertisement
Table of Contents
