Inertia dynamics controls_d2750_specsheet
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The Dynatec 2750 is a solid-state clutch/brake controller that precisely operates coils with currents up to 1 amp. It has features like soft-start and soft-stop, anti-overlap circuitry, and status lights. It is powered by 115 VAC and can control 1 or 2 coils, with input options of 115 VAC, 3-30 VDC, or contact closure. It is designed for easy din rail mounting and reliable, long life operation.
Inertia dynamics controls_d2750_specsheet
- 1. K-4 Dynatec® 2750 Control Accel/Decel Dual Channel Clutch/Brake Control Features • Meets Certifi cation • Soft-Start and Soft-Stop (Ramps output from 0-2 seconds) • Anti-Overlap Circuit • 115 VAC Input • Selective Input Switching Logic Contact or Opto-Isolated 3-30 VDC or 115 VAC • Status/Diagnostic lights: Clutch On Brake On Specifi cations Power Input Voltage 115 VAC Current 1.5 amp Frequency 50/60 HZ Fusing Customer-supplied 2 amp Power Output Voltage 0-90 VDC Current 1.0 amp Max. D2750 with Subpanel Dimensions Weight 18 oz. Overall 2.76" H. x 3.94" H. x 5.28" D. Temperature Operating: 0° to 65°C (32° to 149°F) Description The Dynatec® 2750 (D2750) is a solid-state, digitally designed accel/decel clutch/brake controller, engineered to precisely operate 90 VDC clutch/brake (C/B) coils with current loads of up to 1.0 amp and din rail mounting for ease of installation. This controller operates one or two coils, incorporating an anti-overlap circuit. The D2750 controller employs technology to ensure long life and reliable service: The D2750 incorporates voltage protection on the AC input. When transient voltage spikes or notching is present on AC lines, an isolation transformer is required to fi lter the incoming power to the D2750. Sold & Serviced By: ISO-9001 certifi ed Dynatec® Controls 115 VAC, 50/60 Hz 3-30 VDC Contact Closure Part No. 214257-040-2230 214257-040-2231 214257-040-2232 Input Logic ELECTROMATE Toll Free Phone (877) SERVO98 Toll Free Fax (877) SERV099 www.electromate.com sales@electromate.com
- 2. K-5 D2750 Anti-Overlap When using conventional controls where the output voltage is switched by a relay contact, overlap occurs when you see the arching across the contacts. This indicates that just for an instant the brake and clutch are both engaged. This graph represents overlap. The effect of this is excessive wear and heat to the clutch/brake system. The Dynatec® 2750 incorporates MOV’s and time delay logic that will prevent the effects of overlap. This graph illustrates the effects of anti-overlap. Notice the difference between the RPM curves. You have a shorter time to speed and time to zero, and the switching is more precise, creating less heat. These controls can actually operate the clutch/brake system at higher cycle rates, with better repeatability and less heat than conven-tional controls. D2750 Soft-Start/Soft-Stop This feature is used to cushion the engagement of the clutch and brake by ramping the voltage. This graph dis-plays the RPM curve of a clutch brake package with No Soft-Start/Soft-Stop. The Dynatec® 2750 incorporates a Soft-Start/Soft-Stop feature. This illustration displays the voltage ramping up and ramping down. The ramp time is adjustable by turning the Soft-Start potentiometer for clutch and Soft-Stop for brake and can be adjusted from 0 to 2 seconds, which is the elapsed time from 0 to 90 VDC. There are several factors that are taken into consideration when using this feature: Inertia, Cycle Rate, RPM and Load Torque. Adjust the clutch or brake potentiometer to the desired ramp time. Dynatec® Controls Brake Off Zero RPM Supply Voltage 90 V DC Clutch/Brake Shaft Rotation Clutch On Time to Speed Overlap Clutch Off Clutch On Brake On Time to Zero Clutch/Brake Shaft RPM Curve using Conventional Control Brake Off Zero RPM No Overlap Run RPM Clutch Off Run RPM Supply Voltage 90 V DC Clutch/Brake Shaft Rotation Clutch On Time to Speed Clutch On Brake On Time to Zero Clutch/Brake Shaft RPM Curve using Dynacorp® Control with Anti-Overlap Zero RPM Run RPM Clutch/Brake Shaft Rotation Time to Speed Time to Zero Clutch/Brake Shaft RPM Curve using Conventional Control Zero RPM Run RPM Clutch/Brake Shaft RPM Curve using a Dynacorp® Control with Soft-Start and Soft-Stop Clutch/Brake Shaft Rotation Time to Speed Time to Zero D2750 Wiring Information L2 115 VAC 50/60 Hz L1 Contact 3-32 VDC L1 L2 D2750 1 2 3 Min. Max. Min. Max. Ramp Ramp A B C 90 VDC Brake 90 VDC Clutch Wiring example for logic input 3-32 VDC L2 115 VAC 50/60 Hz L1 Contact 115 VAC D2750 L1 L2 1 2 3 Min. Max. Min. Max. Ramp Ramp A B C 90 VDC Brake 90 VDC Clutch Wiring example for logic input 115 VAC L2 115 VAC 50/60 Hz L1 Contact L1 L2 D2750 1 2 3 Min. Max. Min. Max. Ramp Ramp A B C 90 VDC Brake 90 VDC Clutch Wiring example for contact closure B Orange Wire Brake White Wire Clutch Orange Wire White Wire Clutch A C Dynacorp® Clutch/Brake Package Wiring 90 V DC Brake 90 V DC Clutch B A C Single Clutch and Brake Wiring Sold & Serviced By: ELECTROMATE Toll Free Phone (877) SERVO98 Toll Free Fax (877) SERV099 www.electromate.com sales@electromate.com