VACON CX
Profibus user’s manual
Page
15
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Vacon Oyj
Phone +358-201-2121
Fax: +358-201-212 205
7.3 Process
Data
Direct control of Vacon CX ( e.g. Run, Stop, Direction, Speed reference, Fault reset) and frequency
converter status (e.g. Output frequency, Output current, Fault code ..) can be handled by using PPO
types 1 to 4.
Fieldbus Board
VACON CX
P
PROCESS DATA
Parameters
R
Output
O
Control
Word
F
Reference
I
PD1
Variables
B
PD2
U
PD3
S
PD4
Active Fault Code
D
P
M
RUN/STOP
A
DIRECTION
S
FAULT
RESET
T
E
Frequency Reference
R
(Frequency Reference 2)
Input CONTROL
SOURCE
Status Word
READY STATE
Actual Value
RUN STATE
PD1
DIRECTION
STATE
PD2
FAULT
STATE
PD3
PD4
Output Frequency
7.3.1 Control
Word
The Control command for the state machine (see figure 7.1). The state machine describes the device
status and the possible control sequence of the frequency converter.
The control word is composed of 16 bits that have the following meanings:
Bit Description
Value = 0
Value = 1
0
STOP 1 (by ramp)
ON 1
1
STOP 2 (by coast)
ON 2
2
STOP 3 (by ramp)
ON 3
3 RUN
DISABLE
ENABLE
4 No
Action
START
5 No
Action
START
6 No
Action
START
7
No Action
FAULT RESET (0 -> 1)
8
No Action
No Action
9
No Action
No Action
