Selecting The Number Of Pg (Encoder) Pulses - Omron SYSDRIVE RV Series User Manual

Straight Solderless Terminals for Control Circuit Terminals
We recommend using straight solderless terminal on signal lines to simplify wiring and improve reliability.
Refer to Table 2.12 Straight Solderless Terminal Sizes for specifications.
Closed-loop Connector Sizes and Tightening Torque
The closed-loop connectors and tightening torques for various wire sizes are shown in Table 2.21.
Wire Thickness [mm2]
Wiring Method and Precautions
The wiring method is the same as the one used for straight solderless terminals. Refer to page 2-27. Observe
the following precautions when wiring.
Separate the control signal lines for the PG Speed Control Card from main circuit lines and power lines.
•
Connect the shield when connecting to a PG. The shield must be connected to prevent operational errors
•
caused by noise. Also, do not use any lines that are longer than the recommended length. Refer to Fig 2.24
for details on connecting the shield.
Connect the shield to the shield terminal (E).
•
Do not solder the ends of wires. Doing so may cause contact faults.
•
When not using straight solderless terminals, strip the wires to a length of approximately 5.5 mm.
•

Selecting the Number of PG (Encoder) Pulses

The setting for the number of PG pulses depends on the model of PG Speed Control Card being used. Set the
correct number for your model.
3G3FV-PPGA2/3G3FV-PPGB2
The maximum response frequency is 32,767 Hz.
Use a PG that outputs a maximum frequency of approximately 20 kHz for the rotational speed of the motor.
Some examples of PG output frequency (number of pulses) for the maximum frequency output are shown in
Table 2.22.
-42
2
Table 2.21 Closed-loop Connectors and Tightening Torques
Terminal
Screws
0.5
0.75
M3.5
1.25
2
Motor speed at maximum frequency output (r/min)
------------------------------------------------------------------------------------------------------------------------- -
60
Crimp Terminal Size
1.25 - 3.5
1.25 - 3.5
1.25 - 3.5
2 - 3.5
×
PG rating (p/rev)
Tightening Torque (N • m)
0.8
= 20,000 Hz