Yaskawa G7 Modbus Communication - Manual (Page 8)

8
Connection Check Sheet
The following is a quick reference guide to connect and configure the G7 drive for serial communications. Make a copy of this page and check-
off each item as it is completed. For detailed information please refer to the detailed sections that follow.
1: Unpack the G7 drive and verify that all components are present and undamaged.
2: Connect power to the G7 drive and verify that the G7 drive functions correctly. This includes running the G7 drive from the operator
keypad. Refer to the G7 Technical Manual for information on connecting and operating the G7 drive.
3: Remove power from the G7 drive and wait for the charge lamp to be completely extinguished. Wait at least five additional minutes for
the G7 drive to be completely discharged. Measure the DC bus voltage and verify that it is at a safe level.
4: Connect the G7 drive to an RS-232 network. Note: It is not possible to use the drive’s keypad and an RS-232 connection at the same
time.
4.1: Remove the G7 drive’s operator keypad.
4.2: Connect the RJ-45 port on the front of the G7 drive to the controller serial port. Refer to Figure 1.1 - G7 Diagram for the
location of drive connectors. Use a DB9 to RJ-45 adapter with a standard Ethernet CAT-5 patch cable or use Yaskawa cable
UWR00468-2. Do NOT connect this cable to an Ethernet port on the controller, as damage to the controller and/or G7
drive may result. Refer to Figure 1.2 – RS-232 Connections for a description of the interface cable.
4.3: Verify that the controller communications parameters match the G7 drive’s communications parameters. Refer to Table 1.1
– RS-232 (RJ-45 port) Communications Parameters for a list of default G7 drive communications parameters.
4.4: Reapply power to the G7 drive.
5: Connect the G7 drive to an RS-422/RS-485 network.
5.1: Remove the G7 drive’s terminal cover.
5.2: Connect the controller to the S+/S- and R+/R- terminals on the G7 drive’s terminal block as shown in Figure 1.3 – RS-
422/RS-485 Connections.
5.3: If this device is either the first or last device on the network, set the network termination, S1, to the ON position.
5.4: Reapply power to the G7 drive.
5.5: Set the G7 drive communication parameters to match those of the controller. Refer to Table 1.2 –Baud Rate, Table 1.3 –
Parity and Table 1.4 - RTS.
5.6: Set the node address of the G7 drive.
6: Verify that the G7 drive and controller are communicating and that the exchanged data is valid.