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10

Operation

Once configured, programmed and powered up, the controller requires very
little user intervention.

Controls and Indicators

The following sections describe the controls and indicators found on the card.

Alternately, you may remove the RS-485 terminal block from the card to isolate
the card from the network without disrupting network communications to other
controllers.

Status LEDs

Two Status LEDs are located on the bottom left side of the controller. They are
used to indicate the following:

Communications 

– This yellow LED flashes whenever the controller is commu-

nicating with other controllers over the RS-485 network connection.

Ready

– This green LED indicates the controller has power and is operating

normally. The LED will flash on and off at one second intervals.

Isolation Lamps

Two Isolation Lamps are located below the RJ–12 connector on the right side of
the controller. These lamps serve three functions:

Removing the lamps will open the RS-485 circuit and isolate the controller
from the network.

If one, or both, lamps are lit, it indicates the network is improperly phased.
This means that the ground potential of the controller is not the same as other
controllers on the network

If the voltage or current on the network exceeds safe levels, the lamps operate
as fuses to protect the controller from damage.

Power Jumper

The power jumper, shown in Illustration 8, can be used to remove power from
the controller. This should be done anytime connections are made or changed on
the controller. Removing the jumper opens the 24 VAC supply circuit.

Resetting the Controller

If the controller appears to be operating incorrectly, or is not responding to
commands, you may need to reset the controller.

Summary of Contents for KMD-5831

Page 1: ...1 Installation Operation Guide KMD 5831 Programmable Loop Controller PLC 28 Direct Digital Controller 902 019 04B Shown with optional Override Board Cover ...

Page 2: ... shows the major controller components and their locations The KMD 5821has fewer inputs and outputs Note Additional components are located under the blank cover We will cover these in detail later in this document Illustration 1 Controller Components O R STATUS H O A O R STATUS H O A O R STATUS H O A O R STATUS H O A 1 2 3 4 O R STATUS H O A O R STATUS H O A O R STATUS H O A O R STATUS H O A 5 6 7...

Page 3: ... or other suitable protective enclosure Refer to Illustration 2 Input Connections Universal Inputs Wiring connections are made depending on the intended application Sixteen Universal Inputs are provided on the controller Observe the following guide lines Refer to Illustration 2 Connect device inputs to the input terminal connections Connect input grounds to the associated ground terminal Illustrat...

Page 4: ...ction A separate ground block provides six additional ground connections Network Connections The controller provides connections for two types of RS 485 circuits RJ 12 The RJ 12 connector provides a six wire RS 485 connection to a modem or PC using the KMD 5559 CommTalk Data Exchange Module Simply connect a suitable RJ 12 cable between the devices RS 485 Inputs A RS 485 terminal is available for c...

Page 5: ...all other B terminals Connect the shields of the cable together at each controller Connect the shields to an earth ground at only one end of the segment tape back the shield ground at the other end Use a KMD 5575 repeater between every 32 Tier 2 controllers or if the cable length of the Tier 2 network exceeds 4000 feet 1220 meters Use no more than seven repeaters per network Place a KMD 5567 surge...

Page 6: ... KMD 5831 PLC 28 Direct Digital Controller Installation Operation Guide r e b m u N l e d o M e p y T t u p t u O 1 0 7 6 O P H p m A 1 f o s e g a t l o v C A g n i h c t i w s r o f d e s u y a l e R c a i r T s s e l r o 2 0 7 6 O P H g n i r i u q e r s n o i t a c i l p p a r o f d e s U e d i r r e v O g o l a n A e c i v e d l o r t n o c g o l a n a n a f o t n e m t s u j d a l a u n a m ...

Page 7: ...nection is marked as SC on the output block If you connect a circuit to this connector it then becomes common to all outputs in that bank Configuration Configuration settings may be required for the inputs or the RS 485 connection If you must activate or deactivate pull ups on the inputs or set the end of line termination for the RS 485 connection refer to Illustration 1 to locate the input switch...

Page 8: ...put is the On position In this position the controller will provide 5 VDC to the input device If the input is an active input that is it has it s own current source the pull up for that input must be switched to the Off position End of Line Switches Illustration 6 shows the position of the End of Line switches associated with the RS 485 terminal You must remove the lower blank cover to gain access...

Page 9: ...l use a separate Class 2 24 VAC transformer with the smallest VA rating that matches the specification If several controllers are mounted in the same cabinet you can share a trans former between them PROVIDED the transformer does not exceed 100 VA Configuration Prior to operating the controller it must be configured using the Hardware Configuration Manager HCM application supplied with WinControl ...

Page 10: ...f at one second intervals Isolation Lamps Two Isolation Lamps are located below the RJ 12 connector on the right side of the controller These lamps serve three functions Removing the lamps will open the RS 485 circuit and isolate the controller from the network If one or both lamps are lit it indicates the network is improperly phased This means that the ground potential of the controller is not t...

Page 11: ...e the lower Override Board cover on the controller 2 Locate the Reset button see Illustration 8 3 Locate and remove the Power Jumper from the current position 4 Depress and hold the Reset button 6 Reinstall the Power Jumper DO NOT release the Reset button 7 Continue to hold the Reset Button until the Communications LED flashes rapidly 8 Release the Reset Button This completes the reset sequence fo...

Page 12: ...mark of KMC Controls Inc 2003 KMC Controls Inc All rights reserved No part of this publication may be reproduced transmitted transcribed stored in a retrieval system or translated into any language in any form by any means without the written permission of KMC Controls Inc Printed in U S A Technical Support If you have any questions about this technical document or need additional details please c...

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