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8. Glossary of Command and Parameter
« WD : Write Data to EEPROM
Format : WD
l Writes all current settings of commands, programs and parameters to the EEPROM.
l Use this command when the WM1 (data back-up invalid) is specified.
！
Caution: It requires approximately 30 seconds for execution of this command. Do
not turn the power off while writing data. Otherwise “Memory error” alarm
may occur.
« WM: Write Mode to EEPROM
Format : WM data
Data range : 0, 1
Shipping set : 0
Default : 0
l The total number of overwriting times on the EEPROM to backup data are guaranteed to
500 000 times. However frequent overwriting of data to the EEPROM may easily exceed the
above number of times. The WM command is to select whether store or not the inputted
parameter to avoid unnecessary backup.
WM0: Data backup
WM1: No data backup
！
Caution: • When the command is changed to WM0 (store the data) from WM1
(no-backup), it requires approximately 30 seconds to store the data as
the all data currently set shall be backed up. Do not turn the power off
during the execution of backup. Otherwise, memory error alarm may
occur.
• Initialized parameters will be stored every time when the SI command
executes the initialization, even though “no backup data (WM1)” is set.
l The TS or ?WM reports the current setting.
« WU: Brake-off Timer
Format : WU data
Data range / Shipping set
Motor model Data range [0.1s] Shipping [0.1s]
YSB2020
0.5 to 30.0 0.5
YSB3040
0.9 to 30.0 0.9
YSB4080
1.4 to 30.0 1.4
YSB5120
1.9 to 30.0 1.9
Default : Not available
l The WU specifies the delay time between start and completion of brake-off action when the
brake sequence function is active. The unit of data is 0.1[s]. When WU0.5 is specified, the
delay time is 50 [ms].
l The TS or？WU reports the current setting.
l Refer to “7.1.10. Brake” for the brake sequence function.
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