Yaskawa YASNAC PC NC Maintenance Manual - Manual (Page 149)

PC NC Maintenance Manual The VS-626M5
4-128
4.6 Operation
Test Run
Before turning the power ON, do the following:
• Verify there are no physical obstacles which may prohibit proper
operation.
• Notify people in adjacent areas of the test run before starting.
Turn ON the power to the drive system after confirming security around
the machines.
To avoid a breakdown in the converter or inverter, turn ON the control
power supply before turning ON the main circuit power supply (or turn ON
simultaneously). Turn OFF the control power supply after turning OFF the
main circuit power supply (or turn OFF simultaneously).
• Only turn ON the input power supply after closing the upper and lower covers. Do
not open the covers while current is flowing. Failure to observe this warning can
result in an electric shock.
• The Stop button can be disabled by a function setting. Therefore, a separate emer-
gency stop switch must be installed. Failure to observe this warning can result in
personal injury.
• Never touch the heat sink; the temperature is very high. Failure to observe this cau-
tion can result in harmful burns to the body.
• Operation speed can easily be changed from low to high speed. Prior to operation,
verify the safe working range of the motor and machine. Failure to observe this cau-
tion can result in personal injury.
• Do not check signals during operation. The machine or the unit may be damaged.
• All the inverter parameters have been preset at the factory. Do not change the set-
tings unnecessarily to avoid damaging the machine or the unit.
WARNING
CAUTION