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Chapter 9 INVERTER REACTION TO DeviceNet COMMUNICATIONS ERRORS
Inverter's function codes o27 and o28 specify the inverter reaction to be taken after an error occurrence. Table
9.1 lists the settings for o27 and o28. The same setting can also be made by the DeviceNet variable
DNFaultMode (Class: 0x29, Instance: 0x01, Attribute: 0x10).
Table 9.2 lists the inverter reaction specified by the DNFaultMode. The setting value of o27 and that of
DNFaultMode are interlocked with each other. Changing either one automatically changes the other one.
Table 9.1 Inverter Reactions to DeviceNet Communications Errors Specified by Function Codes o27 and o28
o27 data
o28 data
Inverter reaction to DeviceNet communications error
Remarks
0,
4 to 9
---
Immediately coast to a stop and trip with
er5
.
1
0.0 s to 60.0 s
After the time specified by o28, coast to a stop and trip
with
er5
.
2
0.0 s to 60.0 s
If the communications link is restored within the time
specified by o28, ignore the communications error. After
the timeout, coast to a stop and trip with
er5
.
3,
13 to 15
---
Keep the current operation, ignoring the communications
error. (No
er5
trip)
10 ---
Immediately decelerate to a stop.
Issue
er5
after stopping.
The inverter's function code
F08 specifies the
deceleration time.
11
0.0 s to 60.0 s
After the time specified by o28, decelerate to a stop. Issue
er5
after stopping.
Same as above.
12
0.0 s to 60.0 s
If the communications link is restored within the time
specified by o28, ignore the communications error. After
the timeout, decelerate to a stop and trip with
er5
.
Same as above.
13 ---
Immediately run command OFF. (No
er5
trip)
14 ---
Force to rotate the motor in forward direction.
(No
er5
trip)
Forward rotation is enabled
when NetCtrl = 1.
15 ---
Force to rotate the motor in reverse direction.
(No
er5
trip)
Reverse rotation is enabled
when NetCtrl = 1.
Table 9.2 Inverter Reactions to DeviceNet Communications Errors Specified by DNFaultMode
DNFaultMode
Inverter reaction to DeviceNet communications error
Remarks
o27 data
0
Immediately run command OFF. (No
er5
trip)
13
1
Ignore the communications error. (No
er5
trip)
3
2
If the communications link is restored within the time
specified by o28, ignore the communications error. After
the timeout, decelerate to a stop and trip with
er5
.
.
The inverter's function code
F08 specifies the deceleration
time.
12
3
Force to rotate the motor in forward direction.
(No
er5
trip)
Forward rotation is enabled
when NetCtrl = 1.
14
4
Force to rotate the motor in reverse direction.
(No
er5
trip)
Reverse rotation is enabled
when NetCtrl = 1.
15
100
Immediately coast to a stop and trip with
er5
.
0
101
After the time specified by o28, coast to a stop and trip
with
er5
.
1
102
If the communications link is restored within the time
specified by o28, ignore the communications error. After
the timeout, coast to a stop and trip with
er5
.
2
110
Immediately decelerate to a stop.
Issue
er5
after stopping.
The inverter's function code
F08 specifies the deceleration
time.
10
111
After the time specified by o28, decelerate to a stop.
Issue
er5
after stopping.
Same as above.
11
112
Same as for [DNFaultMode = 2]
12
Summary of Contents for OPC-G1-DEV
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