VLT
®
AutomationDrive EtherNet/IP
MG.90.J1.02 – VLT is a registered Danfoss trademark
26
Status Word according to FC Profile (STW)
(Par. 8-10 = FC profile)
Slave
→
master
STW Output
freq.
Bit
no.:
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
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
Trip lock
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
Thermal ok
Thermal exceeded
Explanation of the Status Bits
Bit 00, Control ready:
Bit 00 = ‘0’ means that the frequency
converter has tripped.
Bit 00 = ‘1’ means that the frequency
converter controls are ready, but that the
power component is not necessarily receiving
any power supply (in the event of external 24
V supply to controls).
Bit 01, Drive ready:
Bit 01 = ‘1’. The frequency converter is ready
for operation.
Bit 02, Coasting stop:
Bit 02 = ‘0’. The frequency converter has
released the motor.
Bit 02 = ‘1’. The frequency converter can start
the motor when a start command is given.
Bit 03, No error/Trip:
Bit 03 = ‘0’ means that the frequency
converter is not in fault mode.
Bit 03 = ‘1’ means that the frequency
converter is tripped, and that a reset signal is
required to re-establish operation.
Bit 04, No error/Error (no trip):
Bit 04 = ‘0’ means that the frequency
converter is not in fault mode.
Bit 04 = ‘1’ means that there is a frequency
converter error but no trip.
Bit 05, Reserved:
Bit 05 is not used in the status word.
Bit 06, No error / Trip lock:
Bit 06 = ‘0’ means that the frequency
converter is not in fault mode.
Bit 06 = ‘1’ means that the frequency
converter is tripped, and locked.
Bit 07, No warning/Warning:
Bit 07 = ‘0’ means that there are no warnings.
Bit 07 = ‘1’ means that a warning has
occurred.
Bit 08, Speed≠ reference/Speed = reference:
Bit 08 = ‘0’ means that the motor is running,
but that the present speed is different from the
preset speed reference. For example, this
might occur while the speed is being ramped
up/down during start/stop.
Bit 08 = ‘1’ means that the present motor
speed matches the preset speed reference.
Bit 09, Local operation/Bus control:
Bit 09 = ‘0’ means that [STOP/RESET] is
activated on the control unit, or that Local
control in par. 3-13 Reference site is selected.
It is not possible to control the frequency
converter via serial communication.
Bit 09 = ‘1’ means that it is possible to control
the frequency converter via the fieldbus/ serial
communication.
Bit 10, Out of frequency limit:
Bit 10 = ‘0’, if the output frequency has
reached the value in par. 4-11 Motor speed low
limit or par. 4-13 Motor speed high limit.
Bit 10 = ‘1’ means that the output frequency is
within the defined limits.
Bit 11, No operation/In operation:
Bit 11 = ‘0’ means that the motor is not
running.
Bit 11 = ‘1’ means that the frequency
converter has a start signal or that the output
frequency is greater than 0 Hz.
