Preliminary User Manual UMAX023241 - Version: 1.1 60-63
4. TECHNICAL SPECIFICATIONS
4.1.
Power Supply, CAN and Reference Voltage
Power Supply Input - Nominal
12 or 24Vdc nominal (9…60 Vdc power supply range)
Protection Reverse
polarity
protection is provided.
Surge protection up to 65V is provided.
Overvoltage shutdown of the output load is provided.
Undervoltage protection (hardware and software shutdown at 7.5V) is provided
.
CAN CANopen
Voltage Reference
One provided
5V +/- 0.2% error
Can source up to 50mA without derating
Analog GND Reference
One provided
4.2. Inputs
Universal Signal Inputs
2 fully independent digital inputs are provided.
Refer to Table 1.0
All inputs are user selectable as Quadrature Encoder or Digital input types.
Inputs are sampled multiple times per millisecond.
Protected against shorts to GND or +Vps (up to 60 Vdc)
All input channels can handle negative voltage inputs down to -2VDC due to
voltage spikes or noise.
Response time to change at the input 2 mSec +/- 1 mSec (without software
filtering) unless otherwise noted.
Table 1.0 –
Input – User Selectable Options
Digital Input Functions
Discrete Input, Quadrature Encoder Input (Steps, Direction, Speed in RPM)
Digital Input Level
12V
Quadrature Encoder Input
Configurable 1k
Ω
pullup or 10k
Ω
pulldown resistor (to GND) resistor which can
also be disabled (floating input)
Rising/Falling edge threshold 2.0V +/- 0.1V
Number or pulses per revolution configurable.
Custom scaler for Encoder steps counter value.
Configurable polarity of direction of rotation.
Digital Input
Normal, Inverse or Latched (pushbutton)
Configurable 1k
Ω
pullup or 10k
Ω
pulldown resistor (to GND) resistor which can
also be disabled (floating input)
Rising/Falling edge threshold 2.0V +/- 0.1V
Input debouncing time selectable