Yaskawa Yasnac PC NC - Manual (Page 28)

YASNAC PC NC Operating Manual Chapter 2: PC NC System Outline
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2.3 Turning the Power ON and Inspecting After Power ON
In this section, the procedure to be used for turning the power ON is explained. Inspection that
must be conducted after turning the power ON is also described.
2.3.1 Procedure for Turning the Power ON
Turn the power ON in the following sequence.
Make sure that the power supplied to the PC NC unit is from an external power source.
Press the POWER ON button on the NC operation panel. Control power is turned ON and the
cooling fan starts rotating.
Make sure that air is flowing out at the upper part on the side of the NC unit.
• In approximately 20 seconds, the control is ready for turning ON the servo power (alarm
code 3000).
Press the POWER ON button again - one time.
• The servo power is turned ON. When the machine is ready for operation, the NC enters
the ready state.
• When the power is correctly turned ON to the NC unit, the NRD (NC ready) signal is out-
put.
• When the power is turned ON at the machine side in response to the NRD signal, the
MRD (machine ready) signal will be returned to the NC. The READY lamp goes on when
the MRD signal is returned. Note that a READY lamp is not used with some types of
machines.
WARNING!
• Be sure to turn the power OFF before replacing the battery.
Failure to observe this warning could lead to electric shock and product failure.
CAUTION!
• Replace fuses and batteries with the recommended products.
Failure to observe this caution could result in fire or product failure.
• Use the product with the “System Number Switch” of the CPU set to “0”.
Using while set to another number could lead to malfunction.
• Wait at least 2 seconds after turning the power OFF before turning it ON again.
Failure to observe this caution could lead to malfunction.