Mitsubishi Electric MELFA CR800 Series Instruction Manual page 73

(b) When deceleration fails with SS1 enabled
Elapsed time from when the SS1 command is enabled is measured. If the motors fail to stop by the time the
SS1 deceleration monitoring time elapses, error H2280 occurs. The operation sequence is shown below:
Speed
速度
Safe stop speed
安全停止速度
Enabled
有効
SS1 command
SS1指令
Disabled
無効
Enabled
有効
SS1 monitoring
SS1監視
Disabled
無効
Enabled
有効
STO monitoring
STO監視
Disabled
無効
Enabled
SS1エラー 有効
SS1 error
Disabled
（H2280） 無効
(c) When the SS1 command is canceled with SS1 enabled before the STO monitoring state becomes
active
Once the SS1 command is enabled, the SS1 monitoring cannot be canceled until the STO monitoring state
becomes active (the deceleration and stop operation cannot be canceled). After the STO monitoring state
becomes active, the SS1 monitoring is canceled.
Speed command
速度指令
Safe stop speed
Enabled
有効
SS1 command
SS1指令
Disabled
無効
Enabled
有効
SS1 monitoring
SS1監視
Disabled
無効
Enabled
有効
STO monitoring
STO監視
Disabled
無効
Fig. 4-39: When the SS1 command is canceled with SS1 enabled before the STO monitoring state becomes
(d) When the origin has not been configured
When the origin has not been configured, inputting the SS1 command (emergency stop, error) activates the
STO monitoring state immediately.
Speed
速度
指令
Command
Deceleration delay
減速遅延時間
Fig. 4-38: When deceleration fails with SS1 enabled
Speed
速度
Command 指令
安全停止速度
SS1 STO
Feedback
ﾌｨｰﾄﾞﾊﾞｯｸ
SS1 STO
Feedback
ﾌｨｰﾄﾞﾊﾞｯｸ
Deceleration delay
減速遅延時間
active
4 SAFETY MONITORING FUNCTIONS
Time
時間
Time
時間
Safety Monitoring Functions 4-63