Ss1 Function - Mitsubishi Electric 800 Series Instruction Manual

5.2

SS1 function

This function is used to activate the STO function after a specified time.
Pr. Name
S004 SS1 deceleration
monitoring time
 Basic operation
• The SS1 function is activated by turning OFF the SS1 command (SS1C) signal.
• The STO function is activated when the time set in Pr.S004 elapses after the SS1 function is activated.
• The STO state is cleared by turning ON the SS1C signal.
Output frequency
Start command
SS1 command
SS1 output
STO output
*1 The start command is not automatically changed by the safety sub-function.
NOTE
• When the STO command (STOC) signal is turned OFF before the time set in Pr.S004 elapses, the STO state is activated
immediately. The STO state is kept while either of the STOC signal or the SS1C signal is OFF. The STO state is cleared
when both signals are turned ON.
• When the SS1C signal is turned OFF in advance, the STO state is activated immediately by power reset or inverter reset.
(The setting in Pr.S004 SS1 deceleration monitoring time is disabled.)
Initial value
5 s
ON
(STF)*1
ON
(SS1C)
ON
(SS1S)
ON
(STOS)
Normal operation
Setting range
0 to 3600 s Set the time from when the SS1 function is
activated until the STO function is activated.
Pr.S004
Normal operation
STO state
Description
Time
ON
ON
ON
5. Safety Sub-Functions
5.2 SS1 function
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