8.14 Digital and analog inputs and outputs

8.14.1 Analog inputs (X3)

The servo amplifier is equipped with two differential inputs for analog setpoints which are
programmable.AGND (X3/1) must always be joined to the CNC-GND of the controls as a ground
reference.
Technical characteristics
— Differential-input voltage max.±10 V
— Resolution 1.25 mV
— Ground reference AGND, terminal X3/1
— Input resistance 20 kW
— Common-mode voltage range for both inputs ± 10 V
— Update rate 62.5 µs
Input Analog-In 1 (terminals X3/4-5)
Differential input voltage max. ± 10 V, resolution 14-bit, scalable
Standard setting : speed setpoint
Input Analog-In 2 (terminals X3/6-7)
Differential input voltage max. ± 10 V, resolution 12-bit, scalable
Standard setting : torque setpoint
Application examples for setpoint input Analog-In 2:
— adjustable external current limit
— reduced-sensitivity input for setting-up/jog operation
— pre-control / override
Fixing the direction of rotation
Standard setting : clockwise rotation of the motor shaft (looking at the shaft end)
— Positive voltage between terminal X3/4 (+ ) and terminal X3/5(-)or
— Positive voltage between terminal X3/6 (+ ) and terminal X3/7(-)
To reverse the direction of rotation, swap the connections to terminals X3/4-5 and. X3/6-7 or
change the ROT. DIRECTION parameter in the “Speed controller” screen.
SERVOSTAR®601...620 Product Manual 65
Danaher Motion 07/2007 Electrical Installation
SERVOSTAR600