Omron MX2 DEVICENET OPTION BOARD User Manual page 49

Troubleshooting Using the LED Indicators
5-1-2 Configuration Errors
MS
Table 25 Configuration Errors
Display &
Indicators
One of the configuration parameters
P160 – P179 has been rejected by the
Inverter.
MS NS
Your Inverter settings are not compatible
with this version of the 3G3AX-MX2-DRT-
E.
MS NS
5-1-3 DeviceNet Errors
MS
Table 26 DeviceNet Errors
Display &
Indicators
Waiting for connection
MS NS
Device Node address (P192) does not
match current online address of the Unit.
MS NS
The DeviceNet master cannot communi-
cate with the Option Board because the
node address is already is use.
MS NS
If the Option Board is correctly configured, the MS indicator will lit GREEN
The table below shows the indicator and display patterns caused by configu-
NS
ration errors.
Possible Cause(s)
If the DeviceNet master is correctly configured and there are no wiring errors,
the NS indicator will lit GREEN. The table below shows the indicator patterns
NS caused by configuration DeviceNet errors.
Possible Cause(s)
Corrective Action
Check (and correct) the following items:
STEP I:
• Is one of the parameters P160 – P179 specifying a Modbus
register that does not exist?
• If one of the parameters P160 – P169 is specifying a double-
word Modbus register: Are both the low- and high-words
specified in sequence by two consecutive parameters?
• If one of the parameters P170 – P179 is specifying a double-
word Modbus register: Are both the high- and low-words
specified in sequence by two consecutive parameters?
• Is a specific Modbus register specified twice in the output
parameter registers P160 – P169?
• Is one of the output parameters P160 – P169 specifying a
Modbus register that is read only? (A register is read-only if it
has an 'R' in the 'R/W' column in section B-4-2 of the MX2
User's manual (Cat. No. I570).)
• Is one of the output parameters P160 – P169 specifying a
Modbus register of which the parameter is not run-mode edit-
able? (A parameter is not run-mode editable if it has an '' in
the 'Run Mode Edit' column in section 3 of the MX2 User's
manual.)
STEP II:
Restart the system by one of the following method
• Power OFF and ON
• Press the stop button on the Operator panel.
• Use the RS function of the intelligent input terminal.
Recovery via the fieldbus:
• Use Modbus Class Object to set the Trip reset coil (04h) in
coil register 0x1F01.
• Check P046 value in range [0..7] and restart unit.
• Reset the Inverter to factory defaults. If the problem persists,
contact your local OMRON representative for assistance.
Corrective Action
-
Restart the Unit.
Check (and correct) the following items:
Does the Master Unit or any other slave device on the
DeviceNet network also have the same node address?
Section 5-1
35