S94P01C -e1
28
5.3 Analog I/O Details
5.3.1 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
:miZgcVa GZ[ZgZcXZ
(Differential Configuration)
68DB
6cVad\ 8dbbVcY Djieji
6cVad\ 8dbbVcY GZijgc
68DB
E(#')
E(#'*
E(#''
6>C
6>C
Edhi^dcHZgkd
9g^kZ
940 Servo Drive
Analog input +
Analog input -
A
nalog I
nput
Bdi^dc
8dcigdaaZg
mb105
H^c\aZ"ZcYZY 8dc[^\jgVi^dc
68DB
6Dji
E(#'%
E(#'&
E(#''
6>C
6>C
Edh^i^dcHZgkd
9g^kZ
68DB
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.