Hitachi WJ C1 Series User Manual

Chapter 10 Monitor Functions
10-1-3
10.1.4 Monitor the Detected Speed of the Motor
 How to know the actual speed feedback from the motor?
Detect speed monitor [d008]
 Displays the actual rotation frequency feedback from the motor when performing V/f control
with sensor or simple position control.
 This monitor is enabled when "Speed feedback (01)" is set to "Pulse input, target function
selection [P003]".
 When using this monitor, set "Async. Motor number of poles, 1st-motor [H004]" and "Encoder
constant [P011]" correctly. Refer to "9.5.8 Using Encoder Feedback" for details.
Code
Item
Description
Data
[d008]
Detect speed monitor
Displays the actual rotation frequency at
encoder feedback.
-590.00 to 590.00 (Hz)
[H004]
Async. Motor number of
poles, 1st-motor
Sets the number of motor poles.
2 to 48 (poles)
[P003]
Pulse input, target
function selection
Speed feedback
01
[P011]
Encoder constant
Set the number of connected encoder pulses
in terms of the number of pulses per motor
rotation (multiplied by 1).
32 to 1024 (pls)
[P901]
Speed detection filter
constant for encoder
pulse
Filter time constant for the speed detected by
the encoder pulse input.
0 to 9999 (ms)
Q
!
A

Hitachi WJ C1 Series Specifications

General

Brand	Hitachi
Model	WJ C1 Series
Category	Inverter
Language	English