3.5 Control signals, monitor signals
3.5.1 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
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.
42 SERVOSTAR
®
601...620 Installation Manual
Interfaces 03/04 Kollmorgen
SERVOSTAR 600
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