118 · vacon
FB Status and control in detail
Tel. +358 (0)201 2121 • Fax: +358 (0)201 2121 205
7
7.4
State machine: Vacon AFE 1
7.4.1
Control Word: Vacon AFE 1
FB Control Word Vacon AFE 1
FALSE
TRUE
Comment
b0
Open CB
Charge DC
b1
b2
b3
Stop Request
Run Request
Use this for start and stop command
b4
b5
b6
b7
No Action
Fault Reset 0 > 1
Use this for fault reset
b8
b9
b10
Field Bus Control Disable
Fieldbus Control Enable
b11
Watchdog pulse FALSE
Watchdog pulse TRUE
0>1>0>1…0.5 sec square wave clock. This is used to check
data communication between fieldbus master and the
drive.
b12 Fieldbus
DIN2=OFF
Fieldbus
DIN2=ON
See P2.5.1.19 -20
b13 Fieldbus
DIN3=OFF
Fieldbus
DIN3=ON
See P2.5.1.21 -22
b14 Fieldbus
DIN4=OFF
Fieldbus
DIN4=ON
See P2.5.1.23 -24
b15
B00: FALSE = Open CB, TRUE = Charge DC
Open CB: The drive will stop modulating and open main circuit breaker.
Charge DC: The drive will start to precharge if the function is activated by a digital output and the
control place is fieldbus. When charging is ready, the main circuit breaker is closed depending on
“CB Close Mode” and “Enable CB Close” status.
When the control place is not fieldbus, precharge is started at a normal start command.
B03: FALSE = Stop Request, TRUE = Start Request
Stop Request: The drive will stop.
Start Request: Start Command to the drive.
B07: FALSE = No Action, TRUE = Fault Reset
Fault Reset: Resets active faults.
B10: FALSE = FB Control disabled TRUE = FB Control Enabled
FB Control Disabled: The drive will not follow the main control word from fieldbus. If removed
while running, the drive will stop.
FB Control Enabled: The drive follows the control word from fieldbus.
B11: FALSE = FB WD Pulse Low, TRUE = FB WD Pulse High
Watchdog pulse: This pulse is used to monitor that PLC is alive. If the pulse is missing, the drive
will go to FAULT state. This function is activated by P2.9.4.3 FB WD Delay. When the value is zero,
the pulse is not monitored.
