Using The Pulse Train Output - YASKAWA A1000 Series Technical Manual

3.10 Control I/O Connections
Sourcing Mode

◆ Using the Pulse Train Output

The pulse train output terminal MP can either supply power but can also be used with external power supply. Peripheral
devices should be connected in accordance with the specifications listed below. Failure to do so can cause unexpected
drive operation, and can damage the drive or connected circuits.
Using Power from the Pulse Output Terminal (Source Mode)
■
The high voltage level of the pulse output terminal depends on the load impedance.
Load Impedance R
Note: The load resistance needed in order to get a certain high level voltage V
Figure 3.33
■ Using External Power Supply (Sink Mode)
The high voltage level of the pulse output signal depends on the external voltage applied. The voltage must be between
12 and 15 Vdc. The load resistance must be adjusted so that the current is lower than 16 mA.
External Power Supply (V)
12 to 15 Vdc ±10%
Figure 3.34
78
Drive Internal Power Supply
Jumper S3
HC
H1
H2
(kΩ)
L
1.5 kΩ
4 kΩ
10 kΩ
MP
AC
Figure 3.29 Pulse Output Connection Using Internal Voltage Supply
External Power Supply
MP
AC
Figure 3.30 Pulse Output Connection Using External Voltage Supply
24 Vdc
can be calculated by:
MP
Load Impedance
V
R
MP
L
Load Impedance
Sink Current
YASKAWA ELECTRIC SIEP C710616 27C YASKAWA AC Drive A1000 Technical Manual
External 24 Vdc Power Supply
Jumper S3
24 Vdc
HC
External
24 Vdc
H1
H2
Output Voltage V (V) (insulated)
MP
5 V
8 V
10 V
R = V 2 / (12 - V
L MP
Load Impedance (kΩ)
1.0 kΩ or higher
)
MP