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Features
Extra-low motor noise offers excellent quietness
Anti-Resonance, provides optimum torque and nulls mid-range instability
Self-test and Auto-configuration technology, offers optimum responses with different motors
Microstep resolutions programmable, from full-step to 102,400 steps/rev
Supply voltage up to +30 VDC
Output current programmable, from 0.3A to 2.0A
Pulse input frequency up to 70 KHz
Automatic idle-current reduction
Supports PUL/DIR and CW/CCW modes
The DM320C is a versatility fully digital stepping drive based on a DSP with advanced control algorithm. It brings a unique level of system smoothness, providing optimum torque and nulls mid-range instability. The self-test and auto-configuration technology offers optimum responses with different motors and easy-to-use. The driven motors can run with much smaller noise, lower heating, smoother movement than most of the drives on the markets. Its unique features make the DM320C an ideal solution for applications that require low-speed smoothness.
Electrical Specifications (Tj = 25oC/77oF)
Parameters
|
DM320C
|
Min
|
Typical
|
Max
|
Unit
|
Output current
|
0.3
|
-
|
2.0
(1.43RMS)
|
A
|
Supply voltage
|
+20
|
-
|
+30
|
VDC
|
Logic signal current
|
7
|
10
|
16
|
mA
|
Pulse input frequency
|
0
|
-
|
70
|
kHz
|
Isolation resistance
|
500
|
|
|
MO
|
Connector P1 Configurations
Pin Function
|
Details
|
PUL+
|
Pulse signal: In single pulse (pulse/direction) mode, this input
represents pulse signal, each rising edge active; 4-5V when input is HIGH,
0-0.5V when input is LOW. In double pulse mode (pulse/pulse) , this input
represents clockwise (CW) pulse, active both at high level and low level
(software configurable).For reliable response, pulse width should be longer
than 6.7µs. Series connect resistors for current-limiting when +12V or +24V
used. The same as DIR and ENA signals. (Note: CW/CCW mode is not
supported by standard version and need to be specified when place order.)
|
PUL-
|
DIR+
|
DIR signal: In single-pulse mode, this signal has low/high voltage
levels, representing two directions of motor rotation; in double-pulse mode
(software configurable), this signal is counter-clock (CCW) pulse,active both
at high level and low level (software configurable). For reliable motion
response, DIR signal should be ahead of PUL signal by 5µs at least. 4-5V when
DIR input is HIGH, 0-0.5V when DIR input is LOW. Please note that rotation
direction is also related to motor-driver wiring match. Exchanging the connection
of two wires for a coil to the driver will reverse motion direction.
|
DIR-
|
ENA+
|
Enable signal: This signal is used for enabling/disabling driver. High
level for enabling the driver and low level for disabling the driver. Usually
left UNCONNECTED (ENABLED).
|
ENA-
|
ALM+
|
Enable signal: Alarm signal output. OC output, high impedance when the
working status is normal and low impedance when over-voltage, over-current,
phase error activate.
|
Connector P2 Configurations
Pin
Function
|
Details
|
GND
|
Power
Ground.
|
+Vdc
|
Power
supply, 20~30 VDC, Including voltage fluctuation and EMF voltage.
|
A+,
A-
|
Motor
Phase A
|
B+,
B-
|
Motor
Phase B
|
Microstep resolutions and output current
are programmable, the former can be set from full-step to 102,400 steps/rev and
the latter can be set from 0.3A to 2.0A.
Note: Microstep and output current programmable feature is reserved
and not offered by standard version, because the RS232 connector of standard
version is not installed on standard model.
However, when it's not in software configured mode, this driver uses a 6-bit
DIP switch to set microstep resolution, and motor operating current, as shown
below:
Microstep Resolution Selection
When it's not in software configured mode,
microstep resolution is set by SW5, 6 of the DIP switch as shown in the
following table:
Microstep
|
Steps/rev.(for 1.8omotor)
|
SW5
|
SW6
|
1 to 512
|
Default/Software configured
|
on
|
on
|
4
|
800
|
OFF
|
ON
|
16
|
3200
|
ON
|
OFF
|
64
|
12800
|
OFF
|
OFF
|
Current Settings
When it’s not in software configured mode,
the first three bits (SW1, 2, 3) of the DIP switch are used to set the dynamic
current. Select a setting closest to your motor’s required current.
Peak Current
|
RMS Current
|
SW1
|
SW2
|
SW3
|
Default/Software configured (0.3 to 2.0A)
|
ON
|
ON
|
ON
|
0.5A
|
0.36A
|
OFF
|
ON
|
ON
|
0.7A
|
0.50A
|
ON
|
OFF
|
ON
|
1.0A
|
0.71A
|
OFF
|
OFF
|
ON
|
1.2A
|
0.86A
|
ON
|
ON
|
OFF
|
1.5A
|
1.07A
|
OFF
|
ON
|
OFF
|
1.7A
|
1.22A
|
ON
|
OFF
|
OFF
|
2.0A
|
1.43A
|
OFF
|
OFF
|
OFF
|
Note: Due
to motor inductance, the actual current in the coil may be smaller than the
dynamic current setting, particularly under high speed condition.
Mechanical Specifications ( unit:
mm [inch] )