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Table of Contents
Summary of Contents for INDELAC CONTROLS 22018-DH
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Page 2: Additional Features
PART #22018-DH - High-Resolution Positioner INTRODUCTION: The Indelac 22018-DH, also known as DHC-400, is a high performance digital positioner intended to control DC actuators, providing 450 points of resolution with quarter turn actuators ranging from 2 sec to 120 sec. The DHC-400 has many... -
Page 3: Board Outline
PART #22018-DH - High-Resolution Positioner BOARD OUTLINE: Page 3... -
Page 4: Block Diagram
PART #22018-DH - High-Resolution Positioner BLOCK DIAGRAM: DESCRIPTION: The DHC-400 is rated for motors with up to 60A locked rotor or 10A running currents and has an operating voltage range from 10VDC to 30VDC. The unit is easily mounted with 2 screws and is equipped with removable screw terminals that provide for easy field wiring. - Page 5 PART #22018-DH - High-Resolution Positioner POWER / SIGNAL: (J2): The positive terminal of the DC power source is connected to pin 1 while the negative terminal connects to pin 2. When the DHC-400 is mounted to a metal bracket or directly to the actuator case, pin 3 provides a terminal for an earth ground connection to the actuator body.
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Page 6: Override Mode
PART #22018-DH - High-Resolution Positioner motion. When power is removed from the DHC-400, the electronic braking feature is disabled. In some applications, a brake is required for mechanical reasons, such as avoiding back driving the motor; the DHC-400 is suitable for powering most brakes, however, consult the actuator manufacturer for more information. - Page 7 PART #22018-DH - High-Resolution Positioner Controlling the DHC-400 from the Override Input is accomplished by connecting a specific resistance to select a specific operation. The table below defines the operations and their associated resistance. See Special Applications for details on using the Override Input for an Auto/Manual Station.
- Page 8 PART #22018-DH - High-Resolution Positioner AUTO: The AUTO function is the normal mode of operation for the DHC-400; all the other functions are used to set up the unit. While in AUTO, the unit can be controlled by various external signals, some of which can be selected by the COMMAND INPUT function.
- Page 9 PART #22018-DH - High-Resolution Positioner function, the adjust buttons are used to set the actuator to any desired position, and upon pressing the MODE button (to select the next function, OPEN), the DHC-400 will retain the setting as the defined closed position.
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Page 10: Command Type
PART #22018-DH - High-Resolution Positioner COMMAND TYPE: The COMMAND TYPE function is used to configure the command signal input for either 4-20mA, 1-5V, 0-5V, 0-10V, 2-10V, or digital so as to match the type of command signal being used. Upon selecting the COMMAND TYPE function, the Command Input indicator will turn on steady, while the indicator for the selected type will flash. -
Page 11: Fault Indicators
PART #22018-DH - High-Resolution Positioner to 20mA. The new setting is saved when the MODE button is pressed, which also selects the AUTO mode. FAULT INDICATORS: The DHC-400 detects various fault conditions that prohibit the unit from controlling the actuator. A combination of the three Fault indicators (red, yellow, and green) will turn on or flash to indicate a specific detected fault. - Page 12 PART #22018-DH - High-Resolution Positioner Low Battery Voltage - When the DHC-400 detects that the battery/power supply voltage connected to BAT POS (J2-1) and BAT NEG (J2-2) drops below 10V, the motor outputs are turned off and the DHC-400 suspends all other operations until the voltage returns to 10V or more. However, the Low Battery Voltage fault indication will maintain for 3 seconds after voltage returns.
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Page 13: Limit Switches
PART #22018-DH - High-Resolution Positioner 30V or less. Note, earlier versions of the DHC-400 may not have this feature. Contact Indelac, Inc. for more information. WARNING! Exposing the DHC-400 to frequent or continuous voltages above 30V can damage the unit. The user should take steps to suppress or eliminate possible supply voltage conditions above 30V. - Page 14 PART #22018-DH - High-Resolution Positioner light (CLOSE or OPEN) will flash. If an appropriate relay option module is installed, the Fault relay output on the option module will turn off (indicating a fault) when either of the limit switches is reached.
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Page 15: Specifications
PART #22018-DH - High-Resolution Positioner ELECTRONIC BRAKE FEATURE: The Electronic Brake feature of the DHC-400 provides highly reliable and accurate braking of the motor, and it is a key element in achieving high resolution. A mechanical brake can still be implemented without interfering with the DHC-400 operation. - Page 16 PART #22018-DH - High-Resolution Positioner COMMAND SIGNAL INPUT Common Mode Voltage (both inputs): -9 to +30 VDC Input Impedance 10.25K ohms (1-5 VDC, 0-5 VDC, 0-10 VDC, 2-10 VDC Input) 250 ohms ±1% (4-20 mA Input) ...
- Page 17 PART #22018-DH - High-Resolution Positioner WIRING DIAGRAMS (Output Configurations): Page 17...
- Page 18 PART #22018-DH - High-Resolution Positioner WIRING DIAGRAMS (Input Configurations): Page 18...
- Page 19 PART #22018-DH - High-Resolution Positioner WIRING DIAGRAMS (Special Applications): Page 19...
- Page 20 PART #22018-DH - High-Resolution Positioner WIRING DIAGRAMS (Special Applications): Page 20...
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Page 21: Wiring Table
PART #22018-DH - High-Resolution Positioner WIRING TABLE: The table below shows the maximum recommended distance (in linear feet) between the power source and the DHC-400 unit. The maximum distance is limited by the wire size used and the locked rotor current of the motor. The surge limiting feature along with an appropriate motor current trip setting can reduce wire size and power source requirements to a minimum (see TRIP SETTING). - Page 22 PART #22018-DH - High-Resolution Positioner OTES _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ Page 22...
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- Page 24 PART #22018-DH - High-Resolution Positioner Contact Information Debbie Voges dvoges@indelac.com 859-727-7890 ext. 100 Matt Robinson mrobinson@indelac.com 859-727-7890 ext. 109 Talbot Caywood tcaywood@indelac.com 859-727-7890 ext. 110 For News & Updates, Check Out Our Blog: www.blog.indelac.com Page 24...