Yaskawa MP930 - Manual (Page 65)

Basic System Operation
3.2.2 Start Sequence
3 -6
J MP930 Start Sequence and Basic Operation
Power ON
Test mode switch
= Test mode
= Normal mode
User memory
check
= Not damaged
= Damaged
Offline self-diagnosis
Program data:
Memory clear
Read calendar
(current value)
Time of power
failure
Calculated from time of
power failure and time of
power restoration
= 10 ms to n s * (power loss)
≧ n s (power failure) *
Report power loss Report power failure
Designated start
Defined on the CP-717
System Definition Screen
= Continuous
Report continuous
operation
Report new operation
Report continuous
operation
= New
Designated start
= Continuous
Start mode
Startup self-diagnosis I/O output
(power failure data)
Detect RUN switch
Start watchdog timer
Execute DWG.A
Low-speed
scan
High-speed
scan Ground
Input Online self-diagnosis
Output
Input
Execute DWG.L Execute DWG.H
Output
= Continuous
= New
= New
* The time for power loss is defined on the CP-717 System Definition Screen.
3