Delta ASDA A2-E

Revision April, 2015 7-1
Chapter 7 Safety Function (Safe
Torque Off, STO)
7.1 Description of Terminal Block
CN-STO Connector (male)
Pin No
Terminal
Symbol
Function and Description
*1 COM+ VDD (24V) power is identical to pin 5 of CN1
2 STO_A STO input pin A+
3 /STO_A STO input pin A-
4 STO_B STO input pin B+
5 /STO_B STO input pin B-
6 FDBK_A
STO alarm output pin A, BJT Output
Max. Rating : 80 VDC, 0.5 A
7 FDBK_B
STO alarm output pin B, BJT Output
Max. Rating : 80 VDC, 0.5 A
8 COM- VDD (24V) power ground
 *1: Do not apply to dual power or it may damage the servo drive.