Profidrive 4.1 State Machine - Vacon optea Installation Manual

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8.2

PROFIdrive 4.1 state machine

STW1 (Control Word) and ZSW1 (Status Word) follow the state machine presented below:
4
7
Highest priority transition
..
..
Lowest priority transition
NOTE! When using VACON
command always follows the configured stop mode and not the stop command given from fieldbus.
NOTE! Quick stop only occurs if the application supports it. If the application does not support Quick
stop, a normal ramp stop is executed.
# Bits of control word
0 -
OFF AND No Coast Stop AND No
1 Quick Stop
STW1 bit 0 = False; 1, 2 = True
Coast Stop OR Quick Stop
2
STW1 bit 1 = False OR bit 2 = False
ON
3
STW1 bit 0 = True
4 Coast Stop OR Quick Stop
8
General state diagram
Power ON
0
S1: Switching On Inhibited
ZSW1 bit 6 = True; 0,1,2 = False
1
S2: Ready For Switching On
ZSW1 bit 0 = True; 1,2,6 = False
3
S3: Switched On
ZSW1 bit 0,1 = True; 2,6 = False
6
S4: Operation
ZSW1 bit 0,1,2 = True; 6=False
Figure 39. General state diagram
®
NX series AC drives and option board in "PROFIdrive" mode, the stop
Table 48. PROFIdrive state machine commands
Local contacts: https://www.danfoss.com/en/contact-us/contacts-list/
11
S5: Switching Off
2
ZSW1 bit0,1 =True
bit 2,6=False
13
5
Ramp stop
10
14
Value
®
VACON 100
(hex)
family &
®
VACON 20X/CP
- Self-initiation is performed
None, requires that Drive is READY (ZSW1 sta-
0x47E
tus word bit 13)
None
0x477 None
None
PROFINET IO
15
Quick stop
12
9
8
11610A_uk
Action(s)
® ®
VACON 20 VACON NXP