Hitachi LH1 Series Basic Manual page 30

Chapter 2
■FM output terminals
(Wiring example)
Digital output
FM
Frequency meter
(PWM)
Terminal
label
FM
CM1
CM1
Terminal name Description
Digital monitor output is selectable from PWM
Digital monitor
output with 6.4ms cycle or pulse output with a
(voltage)
variable duty cycle of approx. 50%.
COM for digital This is a common terminal for digital monitor.
monitor This is also used as 0V reference potential for P1.
Control circuit terminal
•
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.
2-20
Installation and Wiring
Electric characteristics
Pulse train output DC0 to 10V
•
Max. allowable output current
1.2mA
•
Maximum frequency 3.60kHz