50The second incremental encoder connection serves as a buffered outputof the motor encoder. This can be used by other control systems forspeed or position control. The output signals are according to the RS422line driver signal standard.5 4 3 2 19 8 7 63.2.6 X3B IncrementalEncoder OutputPin No. Signal Pin No.1 A+ 12 B+ 33 N+ 54 +5.0 V 75 24...30 V _6 A- 27 B- 48 N- 69 0V com 8Sub-D Housing Earth GND Inverter HousingThe internal 24VDC power supply has a maximum load capacity of170mA . The 5V supply has a maximum load capacity of 500mA. Bothof these values assume no loading on the supplies of connection X3A. Ifconnections or loads are placed on both terminals, the total load betweenthe two must not exceed these values.ONLY when the inverter is switched off and the voltagesupply is disconnected may the feedback connectorsbe removed or connected!Plug in screw terminal ( )9 Pin Sub D - FemaleThe following specifi cations apply to encoder interface X3B, channel 2• Max. operating frequency: 200 kHz.• Maximum cable length: 50m (164 ft)• External terminating resistance: Rt = 120 W• RS422 or TTL level square wavevoltage level: 2...5 VdcFor proper noise immunity, the RS422 standard requires a terminationresistor be placed at the device which is receiving the simulated encodersignal. The resistors shall be connected from A+ to A-, B+ to B-, N+ toN- (only when used).iInstallation and Connection
