Timing Diagram; Status Indication Function - Hitachi SJ Series User Manual

Chapter 21
21.4.6

Timing Diagram

The following shows the timing diagram of output to the
motor and output of EDM signals for STO inputs
ST1/ST2.
Timing Diagram
ST1
ON
ST2 ON
Output to
Output
the motor
EDM
OFF
21.4.7

Status Indication Function

By setting parameters described in the table below, you
can STO input status on the control panel screen.
You can also check the status by checking the monitor
parameter [dA-45].
Parameters related to STO function indication
Item Parameter
STO input indication [bd-01]
selection
STO allowable input [bd-02]
switch time
STO indication [bd-03]
selection within
allowable input time
STO operation [bd-04]
selection after
allowable input time
OFF
OFF
Off
ON
10ms
Data
If input of both ST1 and ST2 is STO (input contact point is OFF), "STO" is shown on
00
the control panel screen.
Also if input of both ST1 and ST2 is STO (input contact point is OFF), "STO" is not
01
shown on the control panel.
02 If input of both ST1 and ST2 is STO (input contact point is OFF), [E090] error occurs.
* Even if either ST1 and ST2 is set to STO, [E090] error does not occur.
0.00~ Set the allowable time during which input status of ST1 and ST2 is different (e.g., input
60.00 (s) contact point: ST1=ON, ST2=OFF).
If there is a difference between the switching time of ST1 and that of ST2, set the
maximum allowable time the difference can be generated.
If it is set to 0.00, the determination of allowable time becomes invalid.
00 Displays a warning at the time difference of status occurs between ST1 and ST2 until
the STO allowable input switch time configured in [bd-02] has elapsed.
01 Does not display a warning at the time difference of status occurs between ST1 and
ST2 until the STO allowable input switch time configured in [bd-02] has elapsed.
00 Displays a warning after the STO allowable input switch time configured in [bd-02] has
elapsed.
01 Does not display a warning after the STO allowable input switch time configured in
[bd-02] has elapsed.
02 After the STO allowable input switch time configured in [bd-02] has elapsed, [E092] or
[E093] error occurs.
Description
21-39
Technical Notes