KMC Controls KMD-5831 Installation & Operation Manual
Installation & Operation Guide
(Shown with optional Override Board Cover)
KMD-5831
Programmable Loop Controller PLC-28 Direct Digital Controller
902-019-04B
1
Introduction
This section provides a brief overview of the KMD-5831 Programmable Loop
Controller PLC-28 and the KMD-5821 Programmable Loop Controller PLC-16 +
Direct Digital Controllers. Review this material before you attempt to install the
controller.
For clarity we will focus on the KMD-5831 but all installation and operating
instructions apply equally to the KMD-5821.
Illustration 1 shows the major controller components and their locations. The
KMD-5821has fewer inputs and outputs.
Override
Board
Cover
Input Pull-Up
Switches
Input Terminal
Blocks
O-RSTATUSH
O-RSTATUSH
O-RSTATUSH
O-RSTATUSH
O-RSTATUSH
O-RSTATUSH
O-RSTATUSH
O-RSTATUSH
O
A
1
O
A
2
O
A
3
O
A
4
O
A
5
O
A
6
O
A
7
O
A
8
Output Terminal
Blocks
Grounds
AC Power
Blank
Cover
Input
RJ–12
Connector
Isolation
Lamps
RS–485
Connector
Status LEDs
Illustration 1. Controller Components
Note:
Additional components are located under the blank cover. We will cover these in
detail later in this document.
2
Installation
Mounting
This section provides important instructions and guidelines for installing the
KMD-5831 Programmable Loop Controller PLC-28 Direct Digital Controller.
Carefully review this information prior to attempting installation.
Use the four mounting holes to securely mount the controller using #6 hardware
inside a UL-approved Enclosed Energy Management Equipment Panel or other
suitable protective enclosure. Refer to Illustration 2.
O-RSTATUSH
O
A
O-RSTATUSH
O-RSTATUSH
O-RSTATUSH
O-RSTATUSH
O-RSTATUSH
O-RSTATUSH
O-RSTATUSH
1
O
A
2
O
A
3
O
A
4
O
A
5
O
A
6
O
A
7
O
A
8
6.00"
Input Connections
Universal Inputs
Wiring connections are made depending on the intended application. Sixteen
Universal Inputs are provided on the controller. Observe the following guidelines. (Refer to Illustration 2.)
◆ Connect device inputs to the input terminal connections (+).
◆ Connect input grounds to the associated ground terminal (-).
6.00"
Illustration 2. Connector Detail
3
Installation KMD-5831 PLC-28 Direct Digital Controller Installation & Operation Guide
◆ If input pull-ups are required, refer to “Configuration” later in this section.
◆ Wiring terminals are suitable for up to two 12–22 AWG wires. If more than
two wires are required, use an external terminal strip for additional connections.
Note:
Pulse inputs may be used under the following conditions:
◆ If the pulse input does not use a voltage variation, then leave the input pull-up
in the “On” position.
◆ If the pulse produces voltage peaks (up to +5 VDC max.), then the input pull-
up must be set to the “Off” position.
◆ The maximum pulse rate is 8 HZ (8 pulse/sec).
Connecting Outputs
Twelve Universal Outputs are available for output connections labeled as 1–12 on
the output terminal blocks. The outputs are grouped into three groups of four
outputs each with a shared grounds (labeled “SC”) in each block.. Each output
can produce 50 mA at +12 VDC. If a greater current is required, KMC recommends the use of Override Boards discussed later in this section.
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 connections to a network of controllers If the
Controller is at the End-of-Line, refer to “Configuration” after connections are
completed.
Detail
The End-of-Line connection will have only one wire attached to the A and B
terminals.
◆ For reliable operation, use Belden cable model #82760 or equivalent (18 gauge,
twisted, shielded, 50 picofarads or less) for all network terminal block connections.
◆ Connect the nodes of the network in a daisy-chain arrangement. This means:
Connect the A terminal in parallel with all other A terminals.
Connect the B terminal in parallel with all other B terminals.
◆ Connect the shields of the cable together at each controller.
4
Loading...