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 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
4-18 Current Limit
. Bit 14 = ’1’: The torque
limit in
4-18 Current Limit
is exceeded.
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%.
8.11.3 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 by
means of 2’s complement. The Actual Output frequency (MAV) is scaled in the same way as the bus reference.
Actual output
freq.
STW
Slave-master
Speed ref.
CTW
Master-slave
16bit
130BA276.10
The reference and MAV are scaled as follows:
Reverse
Forward
Par.3-00 set to
(1) -max- +max
Max reference
Max reference
Par.3-00 set to
(0) min-max
Max reference
Forward
Min reference
100%
(4000hex)
-100%
(C000hex)
0%
(0hex)
Par.3-03
0
Par.3-03
Par.3-03
(4000hex)
(0hex)
0%
100%
Par.3-02
130BA277.10
RS485 Installation and Set-...
VLT Micro Drive Design Guide
MG02K102 - VLT
®
is a registered Danfoss trademark
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