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 PART #22018-DH - High-Resolution Positioner 
 

 

 

Page 2

 

 

 

 

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 
automatic  advanced  features  that  will  enhance 
any  actuator  while  making  it  easy  to  install  and 
set  up.  The  DHC-400  can  replace  a  DMC-100 
standard  size  controller  in  most  applications  to 
upgrade performance. 

The  simple  three  button  control  is  used  to 
configure all parameters the unit needs for a wide 
variety of applications, and allows the open and 
closed  positions  to  be  easily  set  for  direct  or 
reversing  acting  without  any  rewiring.  The  unit 
can  be  configured  for  various  command  types  (4-20mA,  1-5V,  0-5V,  0-10V,  2-10V,  or  a  digital 
command)  and  its  default  operation  upon  loss  of  command.  The  multicolor  LED  Fault  indication 
displays up to 15 different conditions (including "Low Battery Voltage"). 

Various option modules are easily plugged into the unit, providing other features such as a position 
feedback signal, auxiliary switches, fault relay contact, or digital communications. A wide range of 
data  is  accessible  through  a  digital  communications  module,  providing  additional  control  or 
information. 

ADDITIONAL FEATURES: 

  10 to 30 VDC operating voltage range with motors rated up to 60A locked rotor or 10A running 

current. 

  Solid  state  motor  driver  with  thermal  and  overcurrent  protection  provides  reliable  service 

beyond the life of the actuator motor. 

  Positions to ±0.1° with quarter-turn actuators ranging from 2 sec to 120 sec (with or without 

a mechanical brake). Electronic Brake feature can eliminate mechanical brake. 

  Adaptive Control feature continuously adjusts for load and actuator conditions and eliminates 

calibration procedures and auto-cal operations. 

  Polarity Detection feature allows direct or reverse acting operation without re-wiring. 

  Stall Detection feature protects actuator motor from a stall condition. 

  Adjustable Motor Current Trip (0-12A) setting limits actuator torque and battery/power supply 

current requirements. 

  Electronic Surge Limiting reduces wire size and battery/power supply requirements to 20% 

of locked rotor current. 

  Automatic  Duty  Cycle  Control  feature  prevents  motor  damage  due  to  overheating  and 

prevents shutdown of a process due to a thermal overload switch. 

  Operating temperature range of 0 to 60°C 

 

Summary of Contents for 22018-DH

Page 1: ......

Page 2: ...ry switches fault relay contact or digital communications A wide range of data is accessible through a digital communications module providing additional control or information ADDITIONAL FEATURES 10...

Page 3: ...PART 22018 DH High Resolution Positioner Page 3 BOARD OUTLINE...

Page 4: ...it s size and mounting allows the DHC 400 to replace the DMC 100 series controllers in most applications with minimal rewiring The simple three button control MODE and allows the user to perform a com...

Page 5: ...otentiometer are connected to J1 as shown in the Block Diagram The feedback potentiometer wiper must be connected to pin 5 while one end is connected to pin 4 and the other end to pin 6 The Polarity D...

Page 6: ...ators will flash to indicate specific settings associated with the mode Each of the modes are described in more detail in the following sections If a 0 5V or 0 10V command signal is used the LOSS OF C...

Page 7: ...r closed positions are reached However if a feedback fault occurs see FAULT INDICATOR the motor will be turned on for a period of 15 minutes in the selected direction For this reason limit switches sh...

Page 8: ...manual operation of the actuator by using the adjust buttons and without affecting any other settings within the DHC 400 When the button is pressed the MOTOR 1 J1 4 output is connected to BAT POS J2 1...

Page 9: ...The adjust buttons are used to set the actuator to a desired position Whenever the actuator position falls between the defined closed position and the Aux Close position the Aux Close Output indicator...

Page 10: ...s the selected default setting by flashing the Open function indicator for the open default position or it will flash the Close function indicator for the closed default position When neither indicato...

Page 11: ...sed when operating the motor under a fault condition The OVERRIDE mode can also operate the motor when a fault condition exists see OVERRIDE MODE for details Note that the indicators may not indicate...

Page 12: ...disabled The command signal cannot clear this condition only manual operation or a mechanical override can clear the fault Alternatively the DHC 400 can be powered off and then on to temporarily clea...

Page 13: ...d The fault can be cleared in the same manner as previously described for a Double Stall Feedback Alarm A fault condition is detected whenever the feedback signal is out of range that is less than 5 o...

Page 14: ...lows the use of a more moderate battery power supply and smaller gauge wires for a given length see WIRE TABLE The trip setting essentially performs the same function as commonly used torque switches...

Page 15: ...turn actuator the return spring can generate high electrical energies while back driving the motor that can damage the DHC 400 motor outputs In this application the motor must be disconnected usually...

Page 16: ...VDC input 10 5V 0 10 VDC 2 10 VDC input 21mA 4 20mA input A FEEDBACK SIGNAL INPUT Input Voltage 0 to 2 5 VDC External Feedback Potentiometer 1K ohm COMMAND POTENTIOMETER POWER OUTPUT J2 6 5V OUT 5mA...

Page 17: ...PART 22018 DH High Resolution Positioner Page 17 WIRING DIAGRAMS Output Configurations...

Page 18: ...PART 22018 DH High Resolution Positioner Page 18 WIRING DIAGRAMS Input Configurations...

Page 19: ...PART 22018 DH High Resolution Positioner Page 19 WIRING DIAGRAMS Special Applications...

Page 20: ...PART 22018 DH High Resolution Positioner Page 20 WIRING DIAGRAMS Special Applications...

Page 21: ...voltage drop of 1VDC with 20 of the locked rotor current and assumes that the full load running current is less than that All signal wires on the DHC 400 should be connected with wire sizes ranging f...

Page 22: ...____________________________ _________________________________________________________________ _________________________________________________________________ _______________________________________...

Page 23: ...____________________________ _________________________________________________________________ _________________________________________________________________ _______________________________________...

Page 24: ...24 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 U...

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