Control Techniques Cheetah DC Drives

Cheetah SM DC Controller

Cheetah SM DC Drive has a range of outputs, covering 4.5, 6, 8 & 11 amps, from one drive, which are selected by DIL switches that set the correct current limit, the electronic overload protection range, and put the appropriate burden resistors in circuit.

Suitable for either tacho or armature voltage feedback and speed or torque control. Surface Mount DC speed controllers are designed for the efficient speed control of both Wound Field and Permanent Magnet DC Motors. Complete with 10 k single turn potentiometer.

Key Features

• Surface mount technology
• Switch selectable features
• Full wave bridge - half controlled
• 20:1 constant torque speed range
• 2% regulation for 100% load change with AVF (0.5% with tacho feed back)
• Ambient -10º to +40ºC
• LED indication: Power On, Overload lxt/Peak Current, Standby/Reset, Open Collector Fault
• Dual Input Voltages
• Manufactured in accordance with BS5750/ISO 9002
• Wound field/permanent magnet motor controller
• Seperately adjustable ramps
• 0-10V, 4-20mA reference
• CSA approved

Adjustments by control links/dill switches

• Set Speed: 0 to +10V/4-20mA
• Speed/Torque Control
• Tacho/AVF Feedback
• Tacho/AVF Scaling
• Low Speed/Zero Reference
• Current Feedback Scaling
• Input Supply Voltage

Rating Table

Model	Input Volts ±10% 50/60Hz	Motor kW Typical	Average Motor Current	Controller Watts Loss	RMS Line Current
Cheetah Module	220/240 110	1.5 0.75	11 amps 11 amps	32 32	16 amps 16 amps
Cheetah Enclosed	220/240 110	1.5 0.75	11 amps 11 amps	32 32	16 amps 16 amps

Dimensions

Model	Width	Height	Depth
Cheetah Module	255 mm	195 mm	61 mm
Cheetah Enclosed	188 mm	150 mm	60 mm