Danfoss VLT Refrigeration Drive FC 103 Design Manual page 87

System Integration
Bit 04, No error/error (no trip)
Bit 04=0: The frequency converter is not in fault mode.
Bit 04=1: The frequency converter shows an error but does
not trip.
Bit 05, Not used
Bit 05 is not used in the status word.
Bit 06, No error/triplock
Bit 06=0: The frequency converter is not in fault mode.
Bit 06=1: The frequency converter is tripped and locked.
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 might, for
example, be the case when the speed ramps up/down
during start/stop.
Bit 08=1: The motor speed matches the preset speed
reference.
Bit 09, Local operation/bus control
Bit 09=0: [Stop/Reset] is activated on the control unit or [2]
Local control in parameter 3-13 Reference Site is selected.
Control via serial communication is not possible.
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
parameter 4-11 Motor Speed Low Limit [RPM] or
parameter 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 greater than 0 Hz.
Bit 12, Drive OK/stopped, auto start
Bit 12=0: There is no temporary overtemperature on the
inverter.
Bit 12=1: The inverter stops because of overtemperature,
but the unit does not trip and resumes operation once the
overtemperature stops.
Bit 13, Voltage OK/limit exceeded
Bit 13=0: There are no voltage warnings.
Bit 13=1: The DC voltage in the frequency converter's DC
link 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 parameter 4-18 Current Limit.
Bit 14=1: The torque limit in parameter 4-18 Current Limit is
exceeded.
MG16G202
Design Guide
Bit 15, Timer OK/limit exceeded
Bit 15=0: The timers for motor thermal protection and
thermal protection are not exceeded 100%.
Bit 15=1: One of the timers exceeds 100%.
If the connection between the InterBus option and the
frequency converter is lost, or an internal communication
problem has occurred, all bits in the STW are set to 0.
3.9.12.3 Bus Speed Reference Value
Speed reference value is transmitted to the frequency
converter in a relative value in %. The value is transmitted
in the form of a 16-bit word; in integers (0–32767) the
value 16384 (4000 hex) corresponds to 100%. Negative
figures are formatted with 2's complement. The actual
output frequency (MAV) is scaled in the same way as the
bus reference.
Master-follower
CTW
Follower-master
STW
Illustration 3.58 Actual Output Frequency (MAV)
The reference and MAV are scaled as follows:
Par.3-00 set to
(1) -max- +max
Par.3-00 set to
(0) min-max
Illustration 3.59 Reference and MAV
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16bit
Speed ref.
Actual output
freq.
-100% 0%
(C000hex) (0hex)
Reverse
Par.3-03 0
Max reference
0%
(0hex)
Par.3-02
Min reference
3
100%
(4000hex)
Forward
Par.3-03
Max reference
100%
(4000hex)
Forward
Par.3-03
Max reference
85
3