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Miniature Stepper Motor Controller CI240

Description
CI240 Miniature Stepper Motor Controller is a series of miniature, high performance stepper motor controller. They can be mounted onto H42 / H57 / H86 / H110 (NEMA17, NEMA23, NEMA34, NEMA42) series stepper motor seamlessly through corresponding flanges. The thickness of these controllers is less than 14 mm.
CI240-2A is capable to provide 0-2A adjustable current, 10~35VDC
CI240-4A is capable for 1.6-4A adjustable current output , 12~40VDC
CI240-8A is capable for 2A-8A adjustable current, 12~40VDC
Their mixed-decay current control reduces the back-EMF effect under high motor speed and improves the performance. The cover is made of die-cast aluminum which provides a rugged durable protection and improves the heat dissipation
Feature
Miniature size 42.3mm*42.3mm*13.5mm (L*W*H)
Integrally designed to fit onto motors seamlessly, as well as work standalone
Wide range input voltage 10-40VDC
Max 2A / 4A / 8A adjustable output current
1 to 16th micro step resolution
Dual full H-bridge with PWM constant current control
Enable/shutdown input for power saving
Optoisolated inputs with common anode
Die-cast aluminum enclosure, improve heat radiation and durability
MACH 3 Compatible

Optically Isolated Input Interface
CI240xx controllers’ logic control inputs are all optically isolated. All opto-couplers share one common anode (Vcc) as shown in above schematic diagram.  Typically, Vcc is 5V. However, 3.3V or voltages higher than 5V are also acceptable, so long as the current through the opto-coupler’s emitter is between 5~20mA
 
Should a voltage higher than 5V be applied to Vcc, an additional resistor is needed for every terminal to ensure that the current through each emitter does not exceed 20mA
  CI420-1

Terminal Description
CI420-2
 
Terminal No./ Color
Description MIN. MID MAX. UNIT
1/Red V+ Supply voltage CI240-4A/8A 12
40 VDC
CI240-2A 10
35
2/Black GND Supply voltage ground
0
VDC
3/White Vcc Opto‐coupler common anode
5(1)
VDC
4/Green DIR Direction input(2) GND
Vcc VDc
5/Blue STEP Stepping pulse input(3) GND
Vcc VDC
6/Yellow SHDN Shut down the controller(4) GND
Vcc VDC

Mechanical Dimensions
CI420-3

CI240.pdf
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