• Typical setting of V/f pattern
Set the V/f pattern according to the application as described below. When
running at a frequency exceeding 50Hz/60Hz, change the maximum output
frequency (n24).
Note :Besure to sol filemaximumoutput frequency accordingto themotor characteristics.
(1) For general-purpose applications
MotorSpecification : 60Hz Motor Specification : 50Hz
(Factory setting)
200 ............... :
t2- In29 ( 1.5 (
'f I n30 I 12.0 ( 12 . 't
(2) For fans/pumps
Motor Specification : 60Hz Motor Specification : 50Hz
"__f 200.................
10 10
1.3 23 _'_t
(3) For applications requiring high starting torque
Motor Specification : 60Hz MotorSpecification : 50Hz
I n27 I 3.0 (
I n28 J 23.0 I
_ ,f ) n3_ 18.0 I t.3Z_2 _f
Increasing voltage of V/f pattern increases motor torque, but an excessive
increase may cause motor overexcitation, motor overheat or vibration.
Note : n25 isto be set to motorrated voltage.
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