The safe disable inputs (H1, H2, HC) on A1000 and V1000 drives provide a stop function that complies with "Safe Torque Off" as specified by IEC/EN 61800-5-2:2007. Typically, these are used as an emergency stop function in which the drive will immediately stop outputting to the motor. It may be desired to connect multiple drives to a single safety circuit using the safe disable inputs.

Using the Drive's Internal Power Supply

It is NOT recommended to wire multiple drives together using their internal power supply. Doing so will damage the safe disable safety circuit due to overloading the internal 24 VDC circuitry.

Using an External Power Supply

• For V1000 drives WITHOUT option JVOP-TBVA03BAA, it is NOT possible to use and external power supply. When multiple drives are used, individual relays must also be used. 
• For V1000 drives WITH option JVOP-TBVA03BAA, it is possible to use an external power supply and necessary to set Jumper S6 accordingly. Refer to the drawing below.
• For A1000 drives, it is possible to use an external power supply and necessary to set Jumper S3 accordingly. Refer to the drawings below. 

Drive	Sinking Mode	Sourcing Mode
A1000
V1000 with Option part # JVOP-TBVA03BAA		N/A