Hitachi WJ C1 Series User Manual

Chapter 10 Monitor Functions
10-2-2
10.2.2 Monitor the Analog Input [Ai1]/[Ai2] Terminal/Pulse Input [PLA] Terminal
 How to check if voltage or current is input correctly to the analog input terminals?
 How to see the input frequency of the pulse input terminals?
Analog input [Ai1] monitor [d130]/Analog input [Ai2] monitor [d131]
 The analog voltage/current input values to the [Ai1]/[Ai2] terminals are displayed as 10-bit data
(0 to 1023) with 10 VDC/20 mA as the maximum.
 The value of A/D conversion of the analog input can be monitored.
 Considering variations in the input circuit, the monitor values are adjusted at the factory so that
the maximum value of 1023 is obtained when values slightly larger than 10 VDC/20 mA are
input.
Code
Item
Description
Data
[d130]
Analog input [Ai1] monitor
Displays the analog input 0 to maximum value of
the [Ai1] terminal as 10-bit data.
0 to 1023
[d131]
Analog input [Ai2] monitor
Displays the analog input 0 to maximum value of
the [Ai2] terminal as 10-bit data.
0 to 1023
Pulse input monitor [d133]
 Displays the pulse frequency input from the [PLA] terminal in % where the "Pulse frequency
scale [P055]" setting is 100%.
 This monitor is always enabled regardless of the setting of "Pulse input, target function selection
[P003]".
 For details, refer to "9.2.8 Setting Frequency Command by Pulse Input".
 This monitor counts only pulse input from the [PLA] terminal. In case using the [PLB] terminal
and checking its input status, set [P003] to "Speed feedback (01)" and monitor "Detect speed
monitor [d008] or "Current position monitor [d030]".Refer to "9.5.8 Using Encoder Feedback" for
details.
Code
Item
Description
Data
[d133]
Pulse input [PLA] monitor
Displays the pulse frequency input from the
[PLA] terminal in % where the setting in
[P055] is 100%.
0.00 to 100.00 (%)
[P055]
Pulse frequency scale
Set the pulse frequency equivalent to the
highest frequency.
1.0 to 32.0 (kHz)
Q
A
!
A
!

Hitachi WJ C1 Series Specifications

General

Brand	Hitachi
Model	WJ C1 Series
Category	Inverter
Language	English