JVL Industri Elektronik A/S - User Manual - Integrated Stepper Motors MIS23x, 34x, 43x 19
2.3 Analogue Inputs
2.3.1 General
The 0-5V Analogue Inputs are used for example when the Controller is operated as a
stand-alone unit. In this kind of application it can be an advantage to use a potentiometer,
joystick or other device for adjusting speed, position, acceleration, etc.
In these modes of operation, the motor is controlled to produce a velocity or position,
etc., which is determined by, and proportional to, the voltage applied to the Analogue
Input.
The Analogue Inputs share a common internal supply with the GND and P- terminal and
are not optically isolated from all other inputs and outputs. The Analogue Inputs are pro
-
tected against voltage overload up to 30V peak and have a built-in filter which removes
input signal noise. See
Analogue input filters, page 20.
Always use shielded cable to connect the source used to control an Analogue Input since
the motor, etc., can easily interfere with the analogue signal and cause instability.
The Controller is equipped with 8 analogue-to-digital converters (ADC) which convert
the detected analogue signal level. The ADCs have a resolution of 10bit.
In order to use the Analogue Inputs as 0-20 mA inputs, a 250 Ω, 1% resistor must be
connected between IO 1-8 and GND.
Please notice: The number of available IO terminals available may vary de-
pending at which motor type you are using. Please the chapter Connector over-
view for the MIS23x, page 33 or Connector overview for the MIS34x, page 35
TT2164GB
Analogue inputs
0-5VDC Input
Note ! : scr een only
connect ed to signal source.
0-5V Out
PC-card or
Potentiometer
Ground
Screen
0-20mA
250 Ohm
1%
0.25W
IO 1-
P-
TT2186GB
!
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