Yaskawa Monitor/Control Object - 125 (Class 0X7D); Services Supported; Attributes Supported; Troubleshooting - YASKAWA SI-N3 Technical Manual

3. Refer to Explicit Message Communications Errors on page 94
4. Refer to the MEMOBUS/Modbus Data Table in the drive Technical Manual for a list of monitor data using the MEMOBUS/Modbus
message area.
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Yaskawa Monitor/Control Object - 125 (Class 0x7D)

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Services Supported

Service Code No. (Hex)
This is a dynamic explicit Class Object. Not compatible with other company's DeviceNet compatible drives. Any
parameter with a MEMOBUS/Modbus address lower than 0x0100 can be accessed with this class object. This
class is similar to the Drive Parameters Object Class 100, except that since the most significant byte of
MEMOBUS/Modbus address is always zero, the instance in this class remains at 1.
Given a typical MEMOBUS/Modbus Address 0f 0x00YY
The DeviceNet Instance value is equal to 0x01
The DeviceNet Attribute value is equal to YY
As an example, to access Drive Status (MEMOBUS/Modbus Address = 0x002C)
Class Object is 125 (0x7D) (Always for this Class Object)
Instance = 0x01
Attribute = 0x2C
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Attributes Supported

Instance ID Attribute
0 1
1 01
.. ..
1 31
1 32
.. ..
1 255
Note:
1. Attempting to set a read-only parameter results in a DeviceNet error code of 0x0E, Attribute Not Settable.
2. Attempting to access an invalid parameter results in a DeviceNet error code of 0x09, Invalid Attribute Value.
3. Refer to Explicit Message Communications Errors on page 94
4. Refer to the MEMOBUS/Modbus Data Table in the drive Technical Manual for a list of monitor data using the MEMOBUS/Modbus
message area.
12

Troubleshooting

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Drive-Side Error Codes

Drive-side error codes appear on the drive keypad.
corrective actions. Refer to the drive Technical Manual for additional error codes that may appear on the drive
keypad.
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Fault

Both bUS [Option Communication Error] and EF0 [Option Card External Fault] can appear as a fault. When a
fault occurs, the keypad ALM LED stays lit. When an alarm occurs, the ALM LED flashes.
If communication stops while the drive is running, use these questions as a guide to help remove the fault:
YASKAWA SIEP C730600 84F DeviceNet Technical Manual
0E
10
Name
Yaskawa Monitor/Control object
Object Software Revision
software revision
MEMOBUS/Modbus
Drive Command Bits
Register 0x0001
.. ..
Reserved Reserved
MEMOBUS/Modbus
Drive Status 1
Register 0x0020
.. ..
MEMOBUS/Modbus
Reserved
Register 0x00FF
for error codes.
Description Get
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○
○
○
○
○
○
for error codes.
Fault on page 93 lists causes of the errors and possible
12 Troubleshooting
Service Name
Get Attribute Single
Set Attribute Single
Set Size Range
- Word -
○ Word -
○ Word -
○ Word -
- Word -
- Word -
- Word -
Default
1
0
-
-
4
-
-
93