FC 300 Profibus
How to Control the FC 300
Status Word according to FC Profile (STW)
The status word is used to inform the master (e.g.
a PC) of the operation mode of the slave (frequency
converter).
Please refer to Application examples f or an example
of a status word telegram using PPO type 3.
Explanation of the Status Bits
Bit 00, Control not ready/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 case
of external 24 V supply to controls).
B
it 01, Drive ready
Bit 01 = "1". The frequency converter is ready for
operation, but there is an active coasting command
via the digital inputs or via serial communication.
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 Bit = 0 Bit = 1
00 Control not
ready
Control ready
01 Drive no t
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, autostart
13 Voltage OK Voltage exceeded
14 Tor q ue O K Torque exceeded
15 Timer OK Timer exceeded
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, Not used
Bit 05 is not used in the status word.
B
it 06, No error / triplock
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.
B
it 08, Speed≠ reference/speed = reference
Bit 08 = "0" means that the motor is running, but that the present speed is different f rom the preset speed
reference. It might, for example, be the case while the speed is being ramped up/down during start/stop.
Bit 08 = "1" means that the present motor present speed matches the preset s peed reference.
38
MG.33.C2.02 - VLT is a registered Danfoss trademark
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