Hitachi SH1-900H

2-22
Chapter 2
Installation and Wiring
■FM output terminals
(Wiring example)
• FM output is selectable from PWM output with a fixed cycle of
6.4ms or pulse output with a variable cycle.
• FM output is adjustable by parameter settings.
Terminal
label
Terminal name
Description
Electric characteristics
FM output
terminal
FM output
Monitor
output
FM
Digital monitor
(voltage)
Digital monitor output is selectable from PWM
output with 6.4ms cycle or pulse output with a
variable duty cycle of approx. 50%.
Pulse train output 0VDC to 10VDC
• Max. allowable output current
1.2mA
• Maximum frequency 3.60kHz
CM1
COM for digital
monitor
This is a common terminal for digital monitor.
This is also used as 0V reference potential for P20.
Frequency meter
(PWM)
FM
CM1
Digital output
Control circuit terminal