Tachometer Frequently Asked Questions

Set​ ​CMP1 to UPPER and CMP2 to OK.

When the displayed value is less than UPPER​
CMP1 will have the relay OFF, and CMP2 will have the relay ON.

When the displayed value is greater than UPPER​
CMP1 will turn the relay ON, and CMP2 will turn the relay OFF.

This can be used when you want to turn off a relay at maximum rotation speed, for example.

■ UPPER setting device
When UPPER ≤ the displayed value, the relay turns ON.

■ LOWER setting device
When LOWER ≤ the displayed value, the relay turns ON.

■ OK setting device
When UPPER and LOWER are OFF, the relay turns ON.
When either one is ON, the relay is OFF.