Danfoss VLT AutomationDrive FC 300 Design Manual page 166

9. RS-485 Installation and Set-up
Bit
00
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
Explanation of the Status Bits
9
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
frequency converter is switched off (trip).
When bit 00 = "1", the frequency converter 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 frequency converter
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 frequency converter is switched off (trip).
When bit 02 = "1", bit 00, 01 or 02 of the Control word is "1"; the frequency converter has not
tripped.
Bit 03, No error/Trip
When bit 03 = "0", no error condition of the frequency converter exists.
When bit 03 = "1", the frequency converter 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".
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".
166
Bit = 0 Bit = 1
Control not Control ready
ready
Drive not Drive ready
ready
Coasting Enable
No error Trip
OFF 2 ON 2
OFF 3 ON 3
Start possible Start not possible
No warning Warning
Speed ≠ ref- Speed = reference
erence
Local opera- Bus control
tion
Out of fre- Frequency limit ok
quency limit
No operation In operation
Drive OK Stopped, autostart
Voltage OK Voltage exceeded
Torque OK Torque exceeded
Timer OK Timer exceeded
MG.33.B9.02 - VLT ® is a registered Danfoss trademark
FC 300 Design Guide