Ezsq Related Settings - Hitachi WJ200 Series Instruction Manual

3−18
TIP: The deadband feature is useful in applications that requires a very stable output
frequency but use an analog input for the speed reference. Example application: A
grinding machine uses a remote potmeter for operator speed input. After a setting
change, the grinder maintains a very stable speed to deliver a uniform finished surface.
A016=31
Output freq.
reference
16-sample avg.
Analog input

EzSQ Related Settings

The WJ200 series inverter has capability to execute EzSQ program like SJ700 series
inverters. Parameters A017 is for the EzSQ performance. Please refer to the EzSQ
section for the detailed explanation.
Hz
Small step change
Threshold exceeded
+0.1
0
Deadband
-0.1
New deadband
Speed increase given
Noise spikes
+0.1
0
-0.1
t