Lenze S94P01G Position Servo - Manual (Page 31)

S94P01G
29
Interface
4.3 Analog I/O Details
4.3.1 Analog Reference Input
AIN1+, AIN1- (P3.24 and P3.25)
The analog reference input can accept up to a ±10V analog signal across AIN1+ and
AIN1-. The maximum limit with respect to analog common (ACOM) on each input is
±18VDC. The analog signal will be converted to a digital value with 16 bit resolution (15
bit plus sign). This input is used to control speed or torque of the motor in velocity or
torque mode. The total reference voltage as seen by the drive is the voltage difference
between AIN1+ and AIN1-. If used in single-ended mode, one of the inputs must
be connected to a voltage source while the other one must be connected to Analog
Common (ACOM). If used in differential mode, the voltage source is connected across
AIN1+ and AIN1- and the driving circuit common (if any) needs to be connected to the
drive Analog Common (ACOM) terminal. Refer to wiring examples mb105 and mb106.
Reference as seen by drive: Vref = (AIN1+) - (AIN1-) and -10V < Vref < +10V
External Reference
(Differential Configuration)
ACOM
Analog Command Output
Analog Command Return
ACOM
P3.24
P3.25
P3.22
AIN
AIN+
PostionServo
Drive
940 Servo Drive
+
Analog input +
Analog input -
A
nalog I
nput
Motion
Controller
mb105
Single-ended Configuration
ACOM
AOut P3.20
P3.21
P3.22
AIN
AIN+
PositionServo
Drive
ACOM
As the dancer arm goes up and down
a 0 - 10 volt signal is transmitted
to the PositionServo Drive.
+
mb106
AIN2+, AIN2- (P3.20 and P3.21)
The analog reference input can accept up to a ±10V analog signal across AIN2+ and
AIN2-. The maximum limit with respect to analog common (ACOM) on each input is
±18VDC. The analog signal will be converted to a digital value with 10 bit resolution
(9 bit plus sign). This input is available to the User’s program. This input does not have
a predefined function. Scaling of this input is identical to AIN1.