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21
Precautions for Safe Use
NJ-series NJ Robotics CPU Unit User’s Manual (W539)
• Do not turn OFF the power supply or remove the SD Memory Card while SD Memory Card access is
in progress (i.e., while the SD BUSY indicator flashes). Data may become corrupted, and the Control-
ler will not operate correctly if it uses corrupted data. To remove an SD Memory Card from the CPU
Unit when power is supplied to the CPU Unit, press the SD Memory Card power supply switch and
wait for the SD BUSY indicator to turn OFF before you remove the Card.
• Do not disconnect the cable or turn OFF the power supply to the Controller when downloading data
or the user program from the Sysmac Studio.
• Always turn OFF the power supply to the Controller before you attempt any of the following.
a) Mounting or removing I/O Units or the CPU Unit
b) Assembling the Units
c) Setting DIP switches or rotary switches
d) Connecting cables or wiring the system
e) Connecting or disconnecting the connectors
The Power Supply Unit may continue to supply power to the rest of the Controller for a few seconds
after the power supply turns OFF. The PWR indicator is lit during this time. Confirm that the PWR
indicator is not lit before you perform any of the above.
• Confirm that the controlled system will not be adversely affected before you perform any of the fol-
lowing operations.
a) Changing the operating mode of the CPU Unit (including changing the setting of the Operating
Mode at Startup)
b) Changing the user program or settings
c) Changing set values or present values
d) Forced Refreshing
• Always sufficiently check the safety at the connected devices before you change the settings of an
EtherCAT slave or Special Unit.
• If two different function modules are used together, such as when you use CJ-series Basic Units and
EtherCAT slaves, take suitable measures in the user program and external controls to ensure that
safety is maintained in the controlled system if one of the function modules stops. The relevant out-
puts will stop if a partial fault level error occurs in one of the function modules.
• Always confirm safety at the connected equipment before you reset Controller errors with an event
level of partial fault or higher for the EtherCAT Master Function Module.
When the error is reset, all slaves that were in any state other than Operational state due to a Con-
troller error with an event level of partial fault or higher (in which outputs are disabled) will go to Oper-
ational state and the outputs will be enabled.
Before you reset all errors, confirm that no Controller errors with an event level of partial fault have
occurred for the EtherCAT Master Function Module.
• Always confirm safety at the connected equipment before you reset Controller errors for a CJ-series
Special Unit. When the Controller error is reset, the Unit where the Controller error with an event level
of observation or higher will be restarted.
Before you reset all errors, confirm that no Controller errors with an event level of observation or
higher have occurred for the CJ-series Special Unit. Observation level events do not appear on the
Controller Error Tab Page, so it is possible that you may restart the CJ-series Special Unit without
intending to do so.
You can check the status of the _CJB_UnitErrSta[0,0] to _CJB_UnitErrSta[3,9] error status variables
on a Watch Tab Page to see if an observation level Controller error has occurred.
Operation
Summary of Contents for NJ501-4300
Page 13: ...11 CONTENTS NJ series NJ Robotics CPU Unit User s Manual W539 ...
Page 40: ...Revision History 38 NJ series NJ Robotics CPU Unit User s Manual W539 ...
Page 90: ...2 Features of NJ Robotics CPU Unit 2 40 NJ series NJ Robotics CPU Unit User s Manual W539 ...
Page 204: ...5 Vision Robot Integrated Simulation 5 6 NJ series NJ Robotics CPU Unit User s Manual W539 ...
Page 308: ...6 Troubleshooting 6 104 NJ series NJ Robotics CPU Unit User s Manual W539 ...
Page 333: ...I 1 I NJ series NJ Robotics CPU Unit User s Manual W539 Index ...
Page 335: ......