INVT Goodrive350 Series Operation Manual page 66

Communication extension card
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.
Bit
Communication-based
0–7
control command
8 Enabling writing
9–10 Motor group setting
11 Control mode switching
Resetting power
12
consumption to zero
13 Pre-excitation
Table 5-5 Goodrive350 series VFD CWs defined by byte
Name Value
1
2
3
4
5
6 Coast to stop (in emergency)
7
8
Enable writing (mainly through PKW1 to
1
MOTOR GROUP 1 SELECTION
00
MOTOR GROUP 2 SELECTION
01
1 Enable torque/speed control switching
0
1
0
1
-61-
EtherNet/IP communication card
Description
Run forward
Run reversely
Jog forward
Jog reversely
Stop
Reset faults
Stop jogging
PKW4)
(Select motor 1)
(Select motor 2)
Disable switching
Enable
Disable
Enable