Electrical Reference
50
DK58113 Developer Kit User Manual
3
3.5
Environmental and Electrical
Ratings
*
Current rating at 25 C ambient and with 110 CFM air flow on card. Significantly higher currents are possible with additional heat
sinking. Contact your PMD representative for details.
3.6
DK58113 On-Board Amplifier Quick
Reference
The DK58113 comes with a standard MC58113 IC, and is thus not tailored for the amplifier and safety-related
circuitry located on the DK58113 board. Therefore to use the MC58113/DK58113 circuitry safely and to view results
conveniently via Pro-Motion you will need to set various limits and conversion constants.
These parameters are generally entered when using Pro-Motion’s Axis Wizard setup sequence, however they are also
useful if you decide to write your own software that operates the DK58113 board.
Storage temperature:
-40 to +125 degrees C (-40° F to +257°F)
Operating temperature:
0 to +70 degrees C (32° F to +158°F)
HV power requirement:
+12V to + 56V operating range
Motor amplifier continuous current limit
*
:
5.0 A
Motor amplifier peak current limit:
10.0 A
Op5V requirement:
4.75V to 5.25V DC operating range
Digital I/O voltage range:
0V to 5V, TTL thresholds, inputs pulled up to 5V through
4.7 kOhm resistors
Digital outputs drive capacity:
Output source current: 4mA, sinking current 100mA
CAN communications:
2.0B compliant, non-isolated, 1 Mbps
Serial communications:
RS-232 signaling or RS-485 Full or Half Duplex (data only)
Parameter
Value & Units
Comments
Motor Output Mode
PWM High/Low
Set the motor output mode to PWM High/Low for
operation with the on-card amplifier. For remote
amplifier control operation PWM High/Low, 50/50 PWM,
or sign/magnitude PWM may be selected. SPI Atlas is
selected for use with an off-card Atlas Digital Amplifier.
Pulse & Direction is selected for use with an off-card step
motor amplifier supporting those input signals.
PWM Switching Frequency
20 kHz
This setting is motor-specific. Larger motors (some
NEMA 23 and most NEMA 34) should be set for 20 kHz.
Smaller motors may use 40 or 80 kHz to maximize
current control accuracy and minimize heat generation.
PWM Dead Time
540 nsec
For correct operation of the DK58113’s on-card
switching amplifier this parameter must be set to this
value.
PWM Refresh Time
2,000 nSec
To ensure sufficient time to recharge the on-card
amplifier’s high side switches this parameter must be set
to this value.
PWM Refresh Period
8 cycles
To ensure sufficient time to recharge the on-card
amplifier’s high side switches this parameter must be set
to this value
PWM Signal Sense
Active High
For correct operation of the on-card amplifier all PWM
outputs must be set to active high.
