Omron Q2A Series Technical Manual

Network Communications
6
6.2 Modbus Communications
SIEPYEUOQ2A01A AC Drive Q2A Technical Manual 245
Minor Fault/
Alarm Code
(Hex.)
Name
0024 EF10 [ExFault DI10]
0025 EF11 [ExFault DI11]
0026 EF12 [ExFault DI12]
0027 FbL [PID Feedback Loss]
0028 FbH [Excessive PID Feedback]
002A dnE [Drive Disabled]
002B PGoH [Encoder (PG) Hardware Fault]
0031 E5 [MECHATROLINK Watchdog Timer Err]
0032 AEr [Station Address Setting Error]
0033 CyC [MECHATROLINK CommCycleSettingErr]
0034 HCA [High Current Alarm]
0035 LT-1 [Cooling Fan Maintenance Time]
0036 LT-2 [Capacitor Maintenance Time]
0039 EF1 [ExFault DI1]
003A EF2 [ExFault DI2]
003B SToF [Safe Torque OFF Hardware]
Minor Fault/
Alarm Code
(Hex.)
Name
003C STo [Safe Torque OFF]
003D oL5 [Mechanical Weakening Detection 1]
003E UL5 [Mechanical Weakening Detection 2]
0042 TrPC [IGBT Maintenance Time (90%)]
0043 LT-3 [SoftChargeBypassRelay MainteTime]
0044 LT-4 [IGBT Maintenance Time (50%)]
0045 boL [Braking Transistor Overload]
0049 qAL1 [Q2pack Alarm]
004A qAL2 [Q2pack Alarm 2]
004B qAL3 [Q2pack Alarm 3]
0081
EP24v [External Power 24V Supply]
0085
bAT [Keypad Battery Low Voltage]
0087
CP1 [Comparator 1 Limit Error]
0088
CP2 [Comparator 2 Limit Error]
0089
TiM [Operator Time Not Set]
008A
bCE [Bluetooth Communication Error]
◆ Error Codes
■ Modbus Communications Error Code List
The following table lists the Modbus communications error codes.
When an error occurs, remove the cause of the error and restart communications.
Table 6.15 Modbus Communications Error Codes
Error Code
(Hex.)
Name Cause
01 Function Code Error The PLC set a function code that was not 03, 08, or 10 (Hex.)
02 Register Number Error
• The register number that is trying to access is not registered.
• A starting number that was not 0001 or 0002 (Hex.) was set when broadcasting.
03 Bit Count Error
• Read and write data quantities are more than the 1 to 16 range. (Command message data quantity is disabled.)
• The data that was read from non-consecutive holding registers contained more than 120 bytes.
• The data to be written to non-consecutive holding registers contained more than 60 bytes.
• In the write mode, the number of bytes in the message is not the number of data × 2.
21 Data Setting Error
• Writing control data or parameters made the settings go out of the permitted setting range.
• A parameter setting error occurred when writing a parameter.
22 Write Mode Error
• Tried to write a disabled parameter during run.
• When there was a CPF06 [EEPROM Memory Data Error], the master tried to write a parameter other than one of these:
– A1-00 [Language Selection]
– A1-01 [Access Level]
– A1-02 [Control Method]
– A1-03 [Init Parameters]
– A1-04 [Password Input]
– A1-05 [Password Setting]
– E1-03 [V/f Pattern Selection]
– o2-04 [Drive KVA Selection]
• Writes the read-only data.
23
DC Bus Undervoltage
Write Error
During Uv [DC Bus Undervoltage], a Uv write disabled parameter was written.
24
Error Writing Data During
Parameter Processing
Tried to write a parameter from the master during parameter processing on the drive side.
25
Writing into EEPROM
Disabled
Writing into EEPROM write is disabled, but EEPROM write was executed from Modbus communications. When this error
occurs, the keypad shows a message and the drive continues operation.

Omron Q2A Series Specifications

General

Brand	Omron
Model	Q2A Series
Category	Controller
Language	English