Chapter 4 Wiring
4-22
TR terminal is RS485 communication terminal resistor (120 Ω).
We recommend the potentiometer for 1/2W, 1k Ω.
When setting the frequency reference source with analog voltage (V) or current (I), the
reflection of frequency for the analog input is based on when the analog input is actually
received. Taking the voltage input for instance, the state no voltage is applied to V1 is not
0V, but 0V is input to V1 in fact is 0V
In case of analog voltage input, accurate linear property is shown by Bipolar at the state -
10 ~ 0 ~ 10V input is received while by Unipolar at the state 0 ~ 10V input if received.
Warning: If the analog voltage input is interrupted with the frequency reference source at
the state of analog voltage input, i.e. if no voltage is applied, it may cause the occurrence
of offset voltage enabling the frequency command approx. 4~5Hz.
