Function Applications
-532-
Figure 4-68 STO terminal arrangement of the drive unit (dual-axis)
Table 4–41 STO terminal (optional) description of the drive unit (dual-axis)
Appearance
Terminal Code Terminal Name Specifications
STO1
STO channel 1 power supply+ 24 V voltage input, voltage fluctuation
range ± 10%
1GND
STO channel 1 power supply-
STO2
STO channel 2 power supply+
2GND
STO channel 2 power supply-
Electrical Specifications and Connection of the Input Circuit
● Specifications
Table 4–42 Specifications
Signal
Input state
Description
STO1
"1" or "H"
The AC drive works normally.
"0" or "L"
The STO function is enabled.
STO2
"1" or "H"
The AC drive works normally.
"0" or "L"
The STO function is enabled.
● Electrical characteristics
Table 4–43 Electrical characteristics of safety input signals
Item Feature
Description
Voltage range
24 VDC (±15%)
-
Input current
4 mA (Typ.) Value of each channel
Logic level standard
"0" < 3 V, "1" > 15 V
-
Digital input impedance 5.78 kΩ
-
● Connection example
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