12.13.2 Status Word According to FC
Profile (STW) (
8-10 Control Profile
=
FC profile)
Output freq.
STW
Bit
no.:
Follower-master
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
130BA273.11
Illustration 12.17 Status Word
Bit
Bit = 0
Bit = 1
00
Control not ready
Control ready
01
Drive not ready
Drive ready
02
Coasting
Enable
03
No error
Trip
04
No error
Error (no trip)
05
Reserved
-
06
No error
Triplock
07
No warning
Warning
08
Speed ≠ reference
Speed = reference
09
Local operation
Bus control
10
Out of frequency limit
Frequency limit OK
11
No operation
In operation
12
Drive OK
Stopped, auto start
13
Voltage OK
Voltage exceeded
14
Torque OK
Torque exceeded
15
Timer OK
Timer exceeded
Table 12.23 Status Word Bits
Explanation of the Status Bits
Bit 00, Control not ready/ready
Bit 00 = ’0’: The frequency converter trips.
Bit 00 = ’1’: The frequency converter controls are ready but
the power component does not necessarily receive any
power supply (in case of external 24 V supply to controls).
Bit 01, Drive ready
Bit 01 = ’1’: The frequency converter is ready for operation
but the coasting command is active via the digital inputs
or via serial communication.
Bit 02, Coasting stop
Bit 02 = ’0’: The frequency converter releases the motor.
Bit 02 = ’1’: The frequency converter starts the motor with
a start command.
Bit 03, No error/trip
Bit 03 = ’0’ : The frequency converter is not in fault mode.
Bit 03 = ’1’: The frequency converter trips. To re-establish
operation, enter [Reset].
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 e.g. 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
Local control
in
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
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 greater than 0 Hz.
Bit 12, Drive OK/stopped, autostart
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
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%.
RS-485 Installation and Set...
VLT
®
AutomationDrive FC 301/FC 302 Design Guide, 0.25-75 kW
MG33BF02 - Rev. 2013-12-20
189
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