1 — OVERVIEW
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Return to TOC Curtis 1353 CANopen Expansion Module Manual – June 2017
Ramp Up/Down
In 1353, each driver has a build-in ramping function that is applied to the command. ere are
separate values for ramping up and ramping down.
When driver is command on, the Ramp Up parameter sets the time (in ms) to go from the Min to
Max current. When driver is command o, the Ramp Down parameter sets the time (in ms) to go
from the Max to Min current.
Outputs as Active High Digital Inputs
Each output can be used as a digital input. Each input is digitally ltered to eliminate switch “bounce”
or noise in the signal. ere is a power resistor pull-down to B- at each input; therefore, these inputs
are active high to B+.
Voltage Analog Inputs
e 1353 has six analog inputs that are scaled to read 0 – 15 volts. e analog channels are read by
a 12-bit ADC, resulting in about 3.66 millivolt resolution. Independently adjustable lters ensure a
smooth signal.
Resistive Sensor Inputs
Each analog input can be used with resistive sensors, such as RTDs (Resistive Temperature Devices).
Virtual Digital Inputs
e six analog inputs are also sensed and decoded as if they were digital inputs. A unique feature of
these digital inputs is that the active high/low thresholds are completely programmable. us, these
inputs can be used with analog sensors to detect conditions like over/under pressure, high/low level
points, etc.
Encoder Interface
e 1353 has two quadrature encoder inputs, which share with the Analog 1–4 pins. e 1353 can
detect an open fault on the encoder input wire.
CAN Interface
e 1353 is CANopen compliant, responding to the standard NMT, PDO, and SDO communications
as well as the DS301-required identity and standard objects. e Curtis CANopen extensions allow
additional features, such as OEM and User default congurations and time-stamped fault logging.
PDO Map
e 1353 can receive two PDOs and respond with two PDOs. ese PDOs are xed, simplifying the
VCL interface to the module. All programmable parameters and viewable values within the 1353 are
accessible by SDOs or with a Curtis programmer.
Familiarity with your Curtis 1353 module will help you install and operate it properly. We encourage
you to read this manual carefully. If you have questions, please contact the Curtis office nearest you.
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