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YASKAWA ELECTRIC
SIEP C710617 19A YASKAWA AC Drive CR700 Technical Manual
1. When the two input channels are OFF (Open), make sure that the keypad flashes
STo [Safe Torque OFF]
, and
make sure that the motor is not running.
2. Monitor the ON/OFF status of the input channels and make sure that MFDO set to the EDM function operates
as shown in
Safe Disable Monitor Output Function and Keypad Display on page 283
If one or more of the these items are true, the ON/OFF status of the MFDO may not display correctly on the
keypad:
•
Incorrect parameter settings.
•
A problem with an external device.
•
The external wiring has a short circuit or is disconnected.
•
There is damage to the device.
Find the cause and repair the problem to correctly display the status.
3. Make sure that the EDM signal operates during usual operation as shown in
Function and Keypad Display on page 283
5
Network Communications
◆
Safety Precautions
DANGER
Do not ignore the safety messages in this manual. The operating company is responsible for injuries or
equipment damage caused from ignoring the messages in this manual. Failure to obey the safety messages will cause death or
serious injury.
◆
Field Bus Network Support
The user can control and monitor the drive through the network from the PLC. This product comes standard with
a RS-485 interface (MEMOBUS/Modbus communications). If a separately sold communication option is
mounted to the drive, it will enable the drive to support various other network communications.
■
Standard Internal Communication Interfaces
The following communication interfaces are built into this product as standard.
•
MEMOBUS/Modbus(RS-485)
■
Communication Option
The following table lists the field bus networks compatible with this product. Contact Yaskawa or your nearest
sales representative to place a communication option order.
Type of Communications
Option Model
CC-Link
SI-C3
MECHATROLINK-II
SI-T3
MECHATROLINK-III
SI-ET3
PROFIBUS-DP
SI-P3
CANopen
SI-S3
Type of Communications
Option Model
DeviceNet
SI-N3
Modbus TCP/IP
SI-EM3
PROFINET
SI-EP3
EtherNet/IP
SI-EN3
◆
MEMOBUS/Modbus Communications
This section gives detailed information about the parameters, error codes and communication procedures for
MEMOBUS/Modbus communications.
■
Configure Master/Slave
You can use the MEMOBUS/Modbus protocol for serial communication with programmable controllers (PLC).
The MEMOBUS/Modbus communication uses one master (PLC) and a maximum of 31 slave drives. Serial
communications usually starts with a signal from the master to the slave drives.
A slave drive that receives a command from the master does the specified function and then sends a response back
to the master. You must set the address number for each slave drive before you start signal communications to
make sure that the master uses the correct address numbers.