Bit 07, No warning/Warning
Bit 07="0" - there are no warnings.
Bit 07="1" - a warning has occurred.
Bit 08, Speed reference/Speed = reference
Bit 08="0" - the motor is running, but the present speed is
different from the preset speed reference. It could, for
example, be the case while the speed is being ramped up/
down during start/stop.
Bit 08="1" - the present motor present speed matches the
preset speed reference.
Bit 09, Local operation/bus control
Bit 09="0" - [Stop/Reset] is pressed on the LCP, or that
Local control in 3-13 Reference Site is selected. It is not
possible to control the frequency converter via serial
communication.
Bit 09="1" - it is possible to control the frequency
converter via the fieldbus/serial communication.
Bit 10, Out of frequency limit
Bit 10="0" - the output frequency has reached the value in
4-11 Motor Speed Low Limit [RPM] or 4-13 Motor Speed High
Limit [RPM].
Bit 10="1" - the output frequency is within the defined
limits.
Bit 11, No operation/In operation
Bit 11="0" - the motor is not running.
Bit 11="1" - the frequency converter has a start signal or
the output frequency is higher than 0 Hz.
Bit 12, frequency converter OK/Stopped, auto start
Bit 12="0" - there is no temporary over-temperature on the
frequency converter.
Bit 12="1" - the frequency converter has stopped because
of over-temperature, but the frequency converter has not
tripped and resumes operation once the over-temperature
stops.
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
frequency converter thermal protection, have not
exceeded 100%.
Bit 15="1" - one of the timers has exceeded 100%.
4.6
Synchronise and Freeze
The control commands SYNC/UNSYNC and FREEZE/
UNFREEZE are broadcast functions.
SYNC/UNSYNC is used to synchronise control commands
and/or speed reference to all the connected frequency
converters.
FREEZE/UNFREEZE is used to freeze the status feedback in
the slaves to get synchronized feedback from all
connected slaves.
The synchronise and freeze commands affect only process
data (the PCD part of the PPO).
4.6.1 SYNC/UNSYNC
SYNC/UNSYNC can be used to obtain simultaneous
reactions in several slaves, for example synchronised start,
stop or speed change.
A SYNC command freezes the relevant control word and
speed reference. Incoming process data are stored but not
used until a new SYNC command or a UNSYNC command
is received.
An UNSYNC command stops the synchronisation
mechanism and enables normal DP data exchange.
4.6.2
FREEZE/UNFREEZE
FREEZE/UNFREEZE can be used for simultaneous reading of
process data, for example, output current, from several
slaves.
A FREEZE command freezes the actual values and upon
request the slave sends back the value that was present
when the FREEZE command was received.
Upon receipt of an UNFREEZE command the values once
again is continuously updated and the slave returns a
present value, for example, a value generated by
conditions at present time.
The values is updated when a new FREEZE or UNFREEZE
command is received.
Control Programming Guide
22 Danfoss A/S © Rev. 05/2014 All rights reserved. MG37G102
44
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