3.1  Basic Wiring Diagrams
 
3-3
3
Wiring and Connecting SERVOPACKs
*1.  represents twisted-pair wires. 
*2. Connect these when using an absolute encoder. If the Encoder Cable with a Battery Case is connected, do not 
connect a backup battery. 
*3. You can enable this function with a parameter setting. 
*4. The 24-VDC power supply is not provided by Yaskawa. Use a 24-VDC power supply with double insulation or 
reinforced insulation. 
*5. Refer to the following manual if you use a safety function device.
Σ-7-Series Σ-7S SERVOPACK with Analog Voltage/Pulse Train References Product Manual (Manual No.: SIEP 
S800001 26)
If you do not use the safety function, insert the Safety Jumper Connector (provided as an accessory) into CN8 
when you use the SERVOPACK. 
*6. Always use line receivers to receive the output signals. 
Note: 1. If you use a 24-V brake, install a separate power supply for the 24-VDC power supply from other power 
supplies, such as the one for the I/O signals of the CN1 connector. If the power supply is shared, the I/O 
signals may malfunction.
2. Default settings are given in parentheses.