IAI America ERC3 - Manual (Page 161)

Chapter 3 Wiring
3.7 Wiring Method
151
3.7.6 Teaching Port Connector Connection of ERC3 Main Unit
Teaching Port is for the connection of teaching tools (except for Quick Teach) only.
Connect the connector of a teaching tool in the way the insertion mark comes to the bottom
side.
It is able to put in/take OFF the connector while ERC3 power is ON.
Teaching Pendant
PC
Insert Mark
Caution: Removing the teaching pendant while the power is ON causes a transient
emergency stop. Thus, the actuator in operation will be stopped.
Do not disconnect the teaching pendant during the operation.