YASKAWA GA800 Series, Technical Reference

Page: 102 / 1016

3.6 Control I/O Connections
102 YASKAWA SIEPC71061737B GA800 Drive Technical Reference
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 Internal Power Supply (Terminal SN-SP) External 24 V power supply
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.
Load Impedance
R
L
(k Ω )
Output Voltage
V
MP
(V)
1.5 kΩ or more 5 V or more
4.0 kΩ or more 8 V or more
10 kΩ or more 10 V or more
Note:
Use the formula in Figure 3.47 to calculate the necessary load resistance (kΩ) to increase output voltage V
MP
(V).