Communication extension card
EtherNet/IP communication card
-61-
Using CWs is the basic method of the fieldbus system to control VFDs. A CW is transmitted by
the fieldbus master station to a VFD device. In this case, the adapter module functions as a
gateway. The VFD device responds to the bit code information of the CW and feeds state
information back to the master through an SW.
Reference value: A VFD device may receive control information in multiple channels, including
analog and digital input terminals, VFD control panel, and communication modules (such as
RS485 and CH-PA01 adapter modules). To enable the control over VFD devices through
EtherNet/IP, you need to set the communication module as the controller of the VFD device.
Actual value: An actual value is a 16-bit word that includes information about VFD device
operation. The monitoring function is defined through VFD parameters. The conversion scale
of an integer transmitted as an actual value from the VFD device to the master depends on the
set function. For more description, see the related VFD operation manual.
Note:
A VFD device always checks the bytes of a CW and reference value.
Task packet (master station -> VFD)
CW: The first word in a PZD task packet is a VFD CW. When P16.56=0, EtherNetIP control
words are defined by byte. Table 5-5 describes Goodrive350 series VFD CWs defined by byte.
Table 5-5 Goodrive350 series VFD CWs defined by byte
Bit
Name
Value
Description
0–7
Communication-based
control command
1
Run forward
2
Run reversely
3
Jog forward
4
Jog reversely
5
Stop
6
Coast to stop (in emergency)
7
Reset faults
8
Stop jogging
8
Enabling writing
1
Enable writing (mainly through PKW1 to
PKW4)
9–10
Motor group setting
00
MOTOR GROUP 1 SELECTION
(Select motor 1)
01
MOTOR GROUP 2 SELECTION
(Select motor 2)
11
Control mode switching
1
Enable torque/speed control switching
0
Disable switching
12
Resetting power
consumption to zero
1
Enable
0
Disable
13
Pre-excitation
1
Enable
Содержание Goodrive350 Series
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