Darrtt Controls Full Linnee Catalog - Dart Controls

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APPLICATION HIGHLIGHTS Control Chassis Grounding It is important to understand and implement proper grounding of your motor control to ensure safety of personnel and protect your product investment. Chassis or circuit common (sometimes called ‘ground’) and earth ground are NOT synonymous. The motor control circuitry should remain isolated from earth ground at all times. Earth ground conductors should not terminate at any screw terminal unless specifically labeled GND, as in the 500 series. The 500 series is the only Dart product line that provides a screw terminal connection for earth ground wiring. Dart motor controls are mounted to various types of metal chassis which act as heat-sinks for the motor current carrying components of the control circuitry. These chassis are electrically isolated from the circuitry and should be grounded. If present, the GND screw terminal will safely ground the chassis. If a GND screw terminal is not provided (the case for ALL Dart products except the 500 Series), ground termination points may be provided in the form of a ground lug or spade. Consult the product Instruction manual to verify whether a screw terminal or spade pin is provided to accommodate earth ground wiring. If a termination point is not provided on the terminal strip or chassis directly, a ground conductor may be terminated under a mounting screw or bolt at one of the mounting slots of the chassis. SPADE P2 P1-1 P1-2 P1-3 P1 4 N L -A +A GND TERMINAL INPUT VOLTAGE SELECTION SWITCH 115V AC -1 -2 -3 - GND AC AC + CHASSIS MOUNTING SLOT MIN MAX IR COMP CHASSIS LUG 3 -4 -5 - -6 -7 -8- -9 -10 -11 -Arm +Arm +Field -Field Spare Spare AC AC field* ac input motor armature chassis ground 46 www.dartcontrols.com
DEFINITION OF TERMS 1. ADJUSTABLE CURRENT LIMITING (TORQUE LIMITING) produce. 2. ADJUSTABLE LINEAR ACCELERATION Allows the operator to adjust the amount of time it takes the motor to spans up to 12 seconds (model dependent), with longer times available as special items. 3. ADJUSTABLE MINIMUM AND MAXIMUM SPEED that the motor is to operate. The main speed dial then adjusts the speed between this range. 4. BASIC TYPE OF LOAD The three basic types of loads, (constant torque, variable torque, and constant horsepower) can be accommodated with Dart controllers when properly selected. 5. CHASSIS MOUNT (LESS ENCLOSURE) control consoles. 6. COGGING Speed change as a result of armature coils entering and leaving 7. CONSTANT HORSEPOWER This type of load requires constant horsepower throughout the speed range and the torque increases as the speed decreases. For all constant operating speed determines the horsepower of the drive. 8. CONSTANT TORQUE By far the most common of loads. Torque remains constant throughout the speed range while the horsepower required decreases in direct proportion 9. CONTROL BY REMOTE SIGNAL Remote signal controls take the form of voltage or current signals in the therefore to indicate if the remote signal is not electrically isolated from the power source (grounded). 10. CONTROLLED (TIMED) ACCELERATION This feature will accelerate the motor to the set speed in a given length of time. 11. DUTY-CYCLE The relation between the operating time and the rest time of a motor. A motor which continues to operate after it has reached its normal operating (steady) temperature is operating under continuous duty conditions. One which never reaches a steady temperature but is permitted to cool between operations is operating under intermittent duty conditions. 12. DYNAMIC BRAKING source. The rotating motor then becomes a generator which is connected to a resistor. The energy of rotation is then dissipated as heat in the resistors. 13. HORSEPOWER OR TORQUE REQUIRED If the horsepower or torque for a given application is not known, it can 33,000 63,025 5,252 RPM RPM 14. IR COMPENSATION This function compensates for the resistance change in the armature due to load changes and also increases the speed regulation range. www.dartcontrols.com 15. JOGGING This feature provides a means of inching the motor using a single button. The jog feature is available only when a separate remote station is used (i.e. 16. LINE VOLTAGE COMPENSATION Holds the motor speed constant when the line voltage fluctuates over a 17. MULTI-MOTOR CONTROL OR MASTER OVERRIDE A) A master control which controls each individual control and its speed that can be set on the individual unit, maintaining the ratio. B) Connecting more than one motor to an individual control. Satisfactory the applications department before specifying this system. 18. PLUG REVERSAL A method of changing the rotation of a motor by reversing connection polarity as the motor runs. This is not recommended for DC motors – it can damage the control and motor and reduce their life. 19. POTENTIOMETER SPEED INDICATOR This feature provides a means of speed indication by monitoring the voltage on the speed set control. This meter is accurate to the degree the control where a meter is desired. 20. PRE-SET SPEED A selected speed may be set when the control is not in operation. The motor 21. PUSHBUTTON SPEED CONTROL Permits the selection of speed settings via pushbuttons. 22. REVERSING, ELECTRICAL (AUTOMATIC) speed. Direction is controlled with a SPDT switch, relay contacts (dry contact switching), or NPN open collector. 23. REVERSING, MANUAL The manual reverse incorporates a switch to reverse the polarity of the armature leads. The switch is constructed so that the leads cannot be reversed without going through a neutral or brake position. 24. SPEED ADJUSTMENT POTENTIOMETER 25. SPEED RANGE where the speed regulation published is obtained. The motor speed is 26. SPEED REGULATION generator feedback system or digital closed loop control is suggested. 27. TACHOMETER FEEDBACK This feature includes the tachometer mounted on the opposite end of the 28. TACHOMETER FOLLOWER Permits the speed control to be controlled by a remote tachometer. The the speed the motor to be controlled runs. 29. TACHOMETER SPEED REGULATION This feature normally used in conjunction with Tachometer Feedback (item 27) includes the tachometer mounted on the end shaft of the motor and a standard meter scale is 3.5 inches. 30. VARIABLE TORQUE AND HORSEPOWER Although encountered considerably less often than constant torque, this the horsepower and torque required increases at a greater rate than the increases in driver speed. As with the constant torque load drive the variable 47
Page 1 and 2: 1963 2013 HALF A CENTURY OF SPEED C
Page 3 and 4: TABLE OF CONTENTS PAGE SCR DC SPEED
Page 5 and 6: 500 SERIES STANDARD FEATURES
Page 13 and 14: VSI Series Voltage Signal Isolator*
Page 15 and 16: Tach MD SERIES SELECTION GUIDE MODE
Page 17 and 18: MD plus SERIES SELECTION GUIDE MODE
Page 19 and 20: MDII SERIES SELECTION GUIDE MODEL M
Page 21 and 22: Tach ACCU-SET SERIES STANDARD FEATU
Page 23 and 24: ASP PLUS STANDARD FEATURES to suit
Page 25 and 26: ACCU-SET II SERIES ASP20 SELECTION
Page 27 and 28: 700/COMMUTROL TM STANDARD FEATURES
Page 31 and 32: BLM700 SERIES STANDARD FEATURES
Page 35 and 36: DM8000 STANDARD FEATURES (a second
Page 37 and 38: PU-R Series industrial/outdoor appl
Page 39 and 40: STANDARD FEATURES bolts and sensin
Page 41 and 42: Min speed trim pot 55AC10E/15E 55 S
Page 43 and 44: Standard DC Motors Dart has partner
Page 45: APPLICATION HIGHLIGHTS Low Impedanc

Darrtt Controls Full Linnee Catalog - Dart Controls

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