Yaskawa V7N Drive with DeviceNet - Manual (Page 13)

13
Section 5
Cable Installation
Wire the DeviceNet communication cable to the terminal block according to the following procedures:
1) Loosen terminal screws using a slotted screwdriver.
2) Insert the DeviceNet wires into corresponding terminals.
3) Fasten wires by tightening terminal screws.
4) Secure the removable terminal by tightening down the terminal block screws.
(Tightening torque: 0.22~0.25 [N • m])
Note: The shield is daisy chained between devices and should be grounded at the 24 VDC power
supply as specified by the Open DeviceNet Vendor Association (ODVA).
Terminating Resistors
Terminating resistors must be mounted on the first and last node in a DeviceNet network, at both
furthest ends of the cable. The value of the terminating resistor is specified by the ODVA (Open
DeviceNet Vendors Association) and is a value of 121 Ohms, 1% tolerance, and 1/4 watt.
Terminating resistors can be found in the ODVA product catalogue.
DeviceNet Trunk Line
Up to 64 Physical Devices
Baud Rate and Address Configuration
The board is equipped with one rotary switch S1 for baud rate and two rotary switches S3 and S4 for
node address set-up. The rotary switches are located next to the DeviceNet connector.
Baud Rate Setting Switch
The Drive’s DeviceNet baud rate can be set in several ways.
The baud rate can be set using the rotary switch RATE (S1). Setting the switch to position 0, 1, or 2
enables the rotary switch to set the Drive’s baud rate for 125kbps, 250kbps, or 500kbps, respectively.
Setting the rotary switch to 3 enables Auto Baud detection. Setting the rotary switch to values 4 ... 9
sets the baud rate to parameter n152.
5
7
4
3 1
6 9
8
RATE
LSB MSB
BAUD
RATE
MAC ID
Tens Place
MAC ID
Ones Place
0
2
5
7
4 3 1
6 9
8
0
2
5
7
4
3 1
6 9
8
0
2
S1
S3 S4
S1 Switch Setting 0 1 2 3 4-9
0: 125 kbps
1: 250 kbps
Baud Rate 125 kbps 250 kbps 500 kbps Auto Baud Parameter n152
2: 500 kbps
3: Auto Baud
Network Connection
DeviceNet
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