3 Wiring and Connection3.3.1 Names and Functions for Multi-Winding Drive Unit I/O Signals (CN1)3-163.3 I/O Signal ConnectionsThis section describes the names and functions of I/O signals (CN1) on the multi-winding drive unit andSERVOPACKs. Also connection examples are provided for different control methods.3.3.1 Names and Functions for Multi-Winding Drive Unit I/O Signals (CN1)The following tables give the names and functions of the I/O signals (CN1) on the multi-winding drive unit.(1) Input SignalsNote 1. The allocation of the input signals (/SI0 to /SI6) can be changed. For details, refer to 3.4.1 Input Signal Alloca-tions.2. If the forward run prohibited/reverse run prohibited function is used, the servo drive is stopped by software con-trols, and not by electrical or mechanical means. If the application does not satisfy the safety requirements, addan external circuit for safety reasons as required.Signal Pin No. Name FunctionRefer-enceSectionP-OT(/SI2)N-OT(/SI3)4243Forward runprohibited,Reverse runprohibitedWith overtravel prevention: Stops servomotor when movablepart travels beyond the allowable range of motion. 4.3.1/DEC(/SI1) 41 Homing decelerationswitch signal Connects the deceleration limit switch for homing. −EXT1,/EXT1 7, 8 External latch signal 1Connects the external signals that latch the current feedbackpulse counter.−EXT2,/EXT2 11, 12 External latch signal 2EXT3,/EXT3 14, 15 External latch signal 3/SI0/SI4/SI5/SI640444546General-purpose inputsignalUsed for general-purpose input.Monitored in the I/O monitor field of MECHATROLINK. −+24VIN 47 Control power supplyfor sequence signalControl power supply input for sequence signals.Allowable voltage fluctuation range: 11 to 25 VNote: The 24 VDC power supply is not included.3.5.1BAT (+)BAT (-)2122Battery (+) input signalBattery (−) input signalConnecting pin for the absolute encoder backup battery.Do not connect when the encoder cable with the battery caseis used.3.8.24.6.1/P-CL/N-CL/DBANSCan beallocatedForward externaltorque limitReverse externaltorque limitDynamic brake answersignalThe allocation of an input signal to a pin can be changed inaccordance with the function required. −
