Danfoss FC 300 Design Manual page 184

9. RS-485 Installation and Set-up
Explanation of the Status Bits
Bit 00, Control not ready/ready
When bit 00 = "0", bit 00, 01 or 02 of the control word is "0" (OFF 1, OFF 2 or OFF 3) - or the
adjustable frequency drive is switched off (trip).
When bit 00 = "1", the adjustable frequency drive control is ready, but there is not necessarily
power supply to the unit present (in the event of external 24 V supply of the control system).
Bit 01, VLT not ready/ready
Same significance as bit 00, however, there is a supply of the power unit. The adjustable frequency
drive is ready when it receives the necessary start signals.
Bit 02, Coasting/Enable
When bit 02 = "0", bit 00, 01 or 02 of the control word is "0" (OFF 1, OFF 2 or OFF 3 or coasting)
- or the adjustable frequency drive is switched off (trip).
When bit 02 = "1", bit 00, 01 or 02 of the control word is "1"; the adjustable frequency drive has
not tripped.
Bit 03, No error/Trip
When bit 03 = "0", no error condition of the adjustable frequency drive exists.
When bit 03 = "1", the adjustable frequency drive has tripped and requires a reset signal before
it can start.
Bit 04, ON 2/OFF 2
When bit 01 of the control word is "0", then bit 04 = "0".
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When bit 01 of the control word is "1", then bit 04 = "1".
Bit 05, ON 3/OFF 3
When bit 02 of the control word is "0", then bit 05 = "0".
When bit 02 of the control word is "1", then bit 05 = "1".
Bit 06, Start possible/Start not possible
If PROFIdrive has been selected in par. 8-10
off acknowledgement, after activation of OFF2 or OFF3, and after switching on the line voltage.
Start not possible will be reset, with bit 00 of the control word being set to "0" and bit 01, 02 and
10 being set to "1".
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
When bit 08 = "0", the current speed of the motor deviates from the set speed reference value.
This may occur, for example, when the speed is being changed during start/stop through ramp
up/down.
When bit 08 = "1", the current speed of the motor corresponds to the set speed reference value.
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Control word profile
MG.33.B9.22 - VLT ® is a registered Danfoss trademark.
FC 300 Design Guide
, bit 06 will be "1" after a switch-