Control I/O Connections; Set Sinking Mode/Sourcing Mode; Pulse Train Output - YASKAWA GA80U4720ABM Manual

3.6 Control I/O Connections

3.6

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)
◆

Set Sinking Mode/Sourcing Mode

Close the circuit between terminals SC-SP and SC-SN to set the sinking mode/sourcing mode and the internal/
external power supply for the MFDI terminals. The default setting for the drive is internal power supply sinking
mode.
NOTICE: Do not close the circuit between terminals SP-SN. A closed circuit between these terminals will cause damage to the
drive.
Mode
Sinking Mode (NPN)
Sourcing Mode
(PNP)
◆

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 3.47
102
Internal Power Supply (Terminal SN-SP)
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
External 24 V power supply
Output Voltage
V (V)
MP
5 V or more
8 V or more
10 V or more
(V).
MP
YASKAWA SIEPC71061737B GA800 Drive Technical Reference