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9.3
Analogue Output Fault Action
Output Patterns When Error Occurs
9.3.1
When an EtherCAT network error occurs, the output value changes according to the following output patterns
listed on the
Table 9-1
.
Output Pattern
when Error Occurs
Description
Hold Last State
Holds the values of the output voltage or current just before the
error occurred.
Low Limit
Outputs the minimum value of voltage or current which the specific
channel can output. Refer to the
Table 9-2
for details.
High Limit
Outputs the maximum value of voltage or current which the specific
channel can output. Refer to the
Table 9-2
for details.
User Value
Outputs the voltage or current specified by users.
Zero Value
Outputs the voltage or current converted from the digital data value
0 in the specific channel.
Table 9-1. Output Patterns when Error Occurs
The value of output signal on the error is the following.
Output Pattern
when Error
Occurs
Output Range
0~5 V
1~5 [V]
0~10 [V]
-10~10 [V]
0~20 [mA]
4~20 [mA]
Hold Last State
Holds the output values just before the error occurred.
Low Limit
-0.25 [V]
0.8 [V]
-0.5 [V]
-10.5 [V]
0 [mA]
3.2 [mA]
High Limit
5.25 [V]
5.2 [V]
10.5 [V]
10.5 [V]
21 [mA]
20.8 [mA]
User Value
-0.25~5.25 [V]
0.8~5.2 [V]
-0.5~10.5 [V]
-10.5~10.5 [V]
0~21 [mA]
3.2~20.8 [mA]
Zero Value
0 [V]
1 [V]
0 [V]
0 [V]
0 [mA]
4 [mA]
Table 9-2. Output Values when Error Occurs
Setting Output Patterns for When Error Occurs
9.3.2
The output pattern when error occurs for each channel can be set with Analogue Output Fault Action Object
(2304h). Refer to
10.6.5 Object 2304h: Analogue Output Fault Action
When you select the User Value for the output pattern, user can specify a value for the output voltage or current
when an error occurs.
