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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
controller.

Network ON/OFF

The network ON/OFF switch is located near the RJ–12 connector. Use this switch
to enable or disable the RS-485 network connection. When the switch is ON the
controller can communicate on the network; when it is OFF, the controller is
isolated from the network.

Alternately, you may remove the Isolation Lamps to isolate the controller from
the network.

Status LEDs

Two Status LEDs are located on the left side of the controller above the power
connector terminal. They are used to indicate the following:

Ready 

– This LED flashes rapidly whenever the controller is operating normally.

You can consider this the same as a power LED.

Communications 

– This LED indicates when the controller is transmitting over

the RS-485 network connection.

Isolation Lamps

Two Isolation Lamps are located near the RJ–11 connector. 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 and may protect the controller from damage.

Summary of Contents for KMD-7001

Page 1: ...1 Installation Operation Guide Direct Digital VAV Controllers KMD 7001 7051 VAV Terminal Units KMD 7002 7052 Dual Duct VAV Units KMD 7003 7053 Fan Induction Units 907 019 01C ...

Page 2: ...is material before you attempt to install the controller The following illustrations show the different model connection details Illustration 1 Controller Components Illustration 2 KMD 7001 Controller Connector Detail Network Switch RJ 12 Conn Isolation Lamps Input EOL Switches RST Jumper Power Jumper Terminal Connections Conduit Plate Lock Tab Lock Tab Non Rotational Bracket Access Cover Gear Dis...

Page 3: ...b Isolation Lamps Input EOL Switches RST Jumper Power Jumper Conduit Plate Installation This section provides important instructions and guidelines for installing the KMD 7001 7002 and 7003 series controllers Carefully review this information prior to attempting installation Preparation Prior to mounting the controller the rotational limits must be set using stop pins These settings limit the shaf...

Page 4: ...imum amount of shaft rotation is 90 Placing a stop pin in both 90 slots allows the actuator the full 90 of travel Placing a stop pin in any other slot restricts actuator motion in the indicated direction CW or CCW Refer to Illustration 6 for pin placement and travel The first number represents the CCW pin and the second the CW pin CCW CW 90 90 60 90 45 90 90 60 90 45 90 45 60 60 45 60 60 45 Illust...

Page 5: ...k tab on the controller Refer to Illustration 1 4 Manually position the damper in the full open position 5 Adjust the drive hub as follows A If the damper rotates counter clockwise to close depress the gear disen gagement button and rotate the drive hub to the full clockwise position then release the button B If the damper rotates clockwise to close depress the gear disengagement button and rotate...

Page 6: ...01 7003 series except for Input 3 I3 The I3 input on these models is dedicated to the TSP Slave Flow Sensor input Refer to Illustration 3 RS 485 Inputs To make connections to a KMC Tier 2 RS 485 network use the RS 485 connec tions on the terminal strip If the Controller is at the End of Line refer to Con figuration after connections are completed Detail The End of Line connection will have only on...

Page 7: ... used as an output option Output ratings are the same as on the other models T2 This Triac output will switch a maximum voltage of 30 VAC It is rated for a minimum current of 20 mA and a maximum of 1A Use the RET terminal for the triac return R3 This output is assigned as the Normally Open Relay Output The output will switch up to 30 VAC DC at up to 2A maximum The return connects to the COM termin...

Page 8: ...age current for passive devices move the switch to the OFF position 4 After you set the switches replace the controller cover and secure it with the screws you removed earlier Power Connection Connect the 24 VAC supply voltage to the power terminal block on the lower right side of the controller near the PWR jumper Connect the GND side of the transformer to the GND terminal and the AC Phase side t...

Page 9: ...m the controller KMD 7001 7002 7003 Direct Digital Controller Installation Operation Guide Installation Illustration 8 Typical KMD 7003 Application B OPTIONAL IN PLACE A C TO NEXT DEVICE A TO NEXT DEVICE B GND GND R O O M T E M P IN1 IN2 F A N IN3 OUT1 R E H E A T RET COM KMD 7003 GND B A 24VAC 120VAC APPLICATION DRAWING FOR KMD 7003 VAV WITH FAN AND WET REHEAT FROM PREVIOUS DEVICE B FROM PREVIOUS...

Page 10: ...e of the controller above the power connector terminal They are used to indicate the following Ready This LED flashes rapidly whenever the controller is operating normally You can consider this the same as a power LED Communications This LED indicates when the controller is transmitting over the RS 485 network connection Isolation Lamps Two Isolation Lamps are located near the RJ 11 connector Thes...

Page 11: ...Remove the two screws that secure the Access Cover then remove the cover 2 Locate the jumper block next to the input pull up switches see Illustration 8 3 Power off the controller Remove the PWR jumper 4 Locate the RST pins and place a jumper across them 5 Power up the controller Wait until the Ready LED flashes normally 6 Power off the controller 7 Remove the jumper from the RST pins 8 Replace th...

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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