Control I/O Connections; Pulse Train Output - YASKAWA GA800 Programming Manual

4.6 Control I/O Connections

4.6

Control I/O Connections

This section gives information about the settings for the listed control circuit I/O signals.
• MFDI (terminals S1 to S8)
• Pulse train output (terminal MP)
• MFAI (terminals A1 to A3)
• PTC input (terminal A3)
• MFAO (terminals FM, AM)
• MEMOBUS/Modbus communications (terminals D+, D-, AC)
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Pulse Train Output

You can use pulse train monitor output terminal MP for sourcing mode or for sinking mode.
• Use for sourcing mode
The load impedance changes the voltage level of the pulse train output signal.
Note:
Use the formula in Figure 4.28
A - Load Impedance
• Use in sinking mode
The external power supply changes the voltage level of the pulse train output signal. Keep the voltage from an
external source between 10.8 Vdc to 16.5 Vdc. Adjust the load impedance to keep the current at 16 mA or lower.
External Power Supply (V)
10.8 Vdc to 16.5 Vdc
A - External power supply
B - Load Impedance
632
Load Impedance
R (kΩ)
L
1.5 kΩ or more
4.0 kΩ or more
10 kΩ or more
to calculate the necessary load resistance (kΩ) to increase output voltage V
Figure 4.28 Wiring to Use Pulse Train Output in Sourcing Mode
Figure 4.29 Wiring to Use Pulse Train Output in Sinking Mode
Load Impedance (kΩ)
1.0 kΩ or more
C - Sinking current
YASKAWA TOEPYAIGA8002B GA800 Drive Programming
Output Voltage
V (V)
MP
5 V or more
8 V or more
10 V or more
(V).
MP
Sinking current (mA)
16 mA maximum