7.11.2. Status Word According to FC Profile (STW) (Par. 8-10 = FC
profile)
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
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.
VLT
®
HVAC Drive Design Guide
7. RS-485 Installation and Set-up
MG.11.B2.02 - VLT
®
is a registered Danfoss trademark
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