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Chapter X
OPERATION
10-1
Before Applying the Power
Before applying the power, confirm the following:
1)
Check once again that the wiring is correct.
~AUTION
Make sure that the power source is connected to the input terminals
L 1 (R), L2(S), L3(T), and the motor with the output terminals T1 (U),
T2{V), T3{W).
Power
source
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Inverter
Motor
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L31Tl
T3fM
2)
Is the power source voltage correct?
Confirm that the input power source voltage is in the range of rated
voltage ±1 0%. (Do not put 460V on a 230V inverter.)
An excess of this range may activate a protective device or damage
the inverter.
3)
Are the control terminals (RO, TO) connected as suited to the power
source voltage?
4)
Are there short-circuit possibilities?
5)
Are there any loose screw terminals or connectors?
6)
Ensure ST to COM is connect through aux relay or jumpered directly.
10-2
Pre-operation Adjustments
Readjustment may be required on some of the adjustment devices depend-
ing on the application and the load level. For adjustment procedures, refer
to Chapter IX.
Before switching to the run position, also check the following:
1)
Are the V/F pattern and maximum output frequency suitable to the
load level?
2)
Are the adjustment parameters correct?
Push the monitor push-button switch to obtain the monitor mode, and
confirm:
i)
Bias/gain of frequency reference settings
ii)
Upper/lower limit of output reference settings
iii)
Acceleration/deceleration time
10-1
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