212
SIEPCYEUOQ2V01A Q2V Technical Manual
■
No Response from Slave
The slave ignores the command message from the master and will not send a response message in these
conditions:
•
When a communications error (overrun, framing, parity, CRC-16) is detected in the command message.
•
When the slave address in the command message and the slave address for the drive side do not agree (Use
H5-
01 [Mbus Address]
to set the slave address of the drive)
•
When the time interval between the data of which the message is composed is longer than 24 bits
•
When the data length for the command message is not accurate
Note:
•
If the keypad shows
CALL [Serial Comm Transmission Error]
, refer to
“
Troubleshooting
”
to remove the cause of the error, and try to
do communications again. If the keypad does not show
CALL
, check
U1-19 [Modbus Err.Code]
for the error and error type.
•
If you execute the write function code when the slave address in the command message is 00 (Hex.), all of the slaves will execute the
write command, but they will not send response messages to the master.
Summary of Contents for Q2V Series
Page 2: ...This Page Intentionally Blank 2 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 12: ...12 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 18: ...i 2 Legal Information 18 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 26: ...1 2 Features and Advantages of Control Methods 26 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 38: ...2 8 Installation Methods 38 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 70: ...3 3 Main Circuit Wiring 70 SIEPCYEUOQ2V01A Q2V Technical Manual Models B006 B012...
Page 102: ...3 17 Motor Application Precautions 102 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 138: ...4 12 Test Run Checklist 138 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 144: ...5 2 European Standards 144 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 145: ...Standards Compliance 5 5 2 European Standards SIEPCYEUOQ2V01A Q2V Technical Manual 145...
Page 146: ...5 2 European Standards 146 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 266: ...7 10 Troubleshooting Without Fault Display 266 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 284: ...8 6 Storage Guidelines 284 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 312: ...10 10 Peripheral Devices and Options 312 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 430: ...11 21 Parameters Changed by PM Motor Code Selection 430 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 731: ...SIEPCYEUOQ2V01A Q2V Technical Manual 731 Z Z pulse Auto Tuning 125...