Johnson Controls LN Series User manual

LN Series Free Programmable LN-PRGxxx-12 Controllers Installation Instructions 1

Applications

The LN Series Free Programmable LN-PRGxxx-12

Controllers are microprocessor-based and designed to

control various building automation systems, such as

multi-zone air handing units, lighting control, central

plant applications, and power measurement

applications.

The LN Free Programmable Controllers are built on a

similar platform, but have different numbers of inputs

and outputs. The LN PRG6x0-12 controllers are

compatible with the LN Input/Output (I/O) Extension

Module 400 Series models. For more information on

LN I/O Extension Modules, refer to LN Series Input/

Output(I/O)ExtensionModulesInstallationInstructions

(LIT-12011693).

The LN Free Programmable Controllers use the

LONWORKS® communication protocol.

Follow these recommendations for proper installation

and subsequent operation of each controller:

• Inspect the controller for shipping damages. Do not

install damaged controllers.

• Keep the controller at room temperature for at least

24 hours prior to installation to allow any

condensation that may have accumulated during

shipping to evaporate.

• If the controller is used in a manner not specified

by Johnson Controls, the functionality and the

protection provided by the controller may become

impaired.

• Record the 12-digit Neuron® ID located on either

end of the device (shown on the sticker below the

barcode) for commissioning.

Note: The controller’s plastic enclosure has a

back plate that is separate from the front plate

allowing the back plates to be shipped directly to

the installation site while all the engineering is done

elsewhere.

North American Emissions Compliance

Canada

United States

Installation

Observe these guidelines when installing an LN Free

Programmable Controller:

• Transport the controller in the original container to

minimize vibration and shock damage.

• Verify that all parts shipped with the controller.

• Do not drop the controller or subject it to physical

shock.

IMPORTANT: Prevent any static electric discharge

to the controller. Static discharge can damage the

controller and void the warranties.

Industry Canada Statement

The term IC before the certification/registration

number only signifies that the Industry Canada

technical specifications were met.

Le terme « IC » précédant le numéro d'accréditation/

inscription signifie simplement que le produit est

conforme aux spécifications techniques d'Industry

Canada.

This equipment has been tested and found to

comply with the limits for a Class A digital device

pursuant to Part 15 of the FCC Rules. These limits

are designed to provide reasonable protection

against harmful interference when this equipment is

operated in a commercial environment. This

equipment generates, uses, and can radiate radio

frequency energy and, if not installed and used in

accordance with the instruction manual, may cause

harmful interference to radio communications.

Operation of this equipment in a residential area

may cause harmful interference, in which case the

users will be required to correct the interference at

their own expense.

LN Series Free Programmable LN-PRGxxx-12 Controllers

Installation Instructions

LN-PRG203-12, LN-PRG300-12,

LN-PRG4x0-12, LN-PRG6x0-12 Code No. LIT-12011796

Issued April 24, 2014

Supersedes January 30, 3013

LN Series Free Programmable LN-PRGxxx-12 Controllers Installation Instructions2

Dimensions

Figure 1: LN-PRG203-12 and LN-PRG300-12 Controller Dimensions, mm (in.)

Figure 2: LN-PRG4x0-12 and LN-PRG6x0-12 Controller Dimensions, mm (in.)

LN Series Free Programmable LN-PRGxxx-12 Controllers Installation Instructions 3

Mounting

Location Considerations

Observe these guidelines when mounting an LN Free

Programmable Controller:

• Allow for proper clearance around the controller’s

enclosure, wiring terminals, and service pin to

provide easy access for hardware configuration

and maintenance.

• Ensure proper ventilation of each controller and

avoid areas where corroding, deteriorating, or

explosive vapors, fumes, or gases may be present.

• Orient each controller with the ventilation slots and

power supply/output terminal block connector

towards the top to permit proper heat dissipation.

• Do not mount the controller on surfaces prone to

vibration, such as duct work, or in areas where

electromagnetic emissions from other devices or

wiring can interfere with controller communication.

You can mount each controller on a DIN rail, on a wall,

or in a panel. The controllers are equipped with two

mounting holes 0.25 x 0.165 in. (6.35 x 4.191 mm).

DIN Rail

To mount the controller on a DIN rail:

1. Ensure the DIN rail is properly mounted on the

wall.

2. Clip the controller onto the DIN rail.

Wall Mount

To mount the controller on a wall:

1. Press on the side clips to separate the controller’s

front and back plates.

2. Use the holes on the back plate to mark the wall

location.

3. Drill the holes.

Clean the surface and mount the controller using the

appropriate screws.

Wiring

Follow these wiring recommendations:

• Remove the front plate from the back plate to

facilitate in the wiring process. Use a small flat

screwdriver to tighten the terminal connector

screws once the wires are inserted.

• Keep power cables apart from other types of wiring

to avoid ambient noise transmission to other wires

(for example, for power, 3-wire voltage, and current

inputs and outputs).

• Use wires or flat cables ranging from 22 to 14 AWG

(0.644 to 1.630 mm diameter) per pole. Power

cables must remain between 18 to 14 AWG

(1.024 to 1.630 mm) diameter.

• Do not connect the universal inputs, analog/digital

outputs or common terminals to earth or chassis

ground unless otherwise stated.

• Keep all wires away from high speed data

transmission cables (for example, Ethernet cable).

• Keep input and output wires in conduits, trays, or

close to the building frame whenever possible.

CAUTION: Risk of Electric Shock.

Disconnect the power supply before

making electrical connections to avoid

electric shock.

MISE EN GARDE : Risque de décharge

électrique.

Débrancher l'alimentation avant de

réaliser tout raccordement électrique afin

d'éviter tout risque de décharge

électrique.

LN Series Free Programmable LN-PRGxxx-12 Controllers Installation Instructions4

Power Wiring

We recommend wiring only one controller per 24 VAC

transformer. When only one transformer is available,

determine the maximum number of controllers that can

be supplied using the following method for calculating

the required power transformer capacity:

1. Add up the maximum power consumption of all

controllers, including external loads, and multiply

this sum by 1.3.

2. If the resulting number is higher than 100 VA, use

multiple transformers.

Use an external fuse on the 24 VAC/DC side

(secondary side) of the transformer to protect all

controllers against power link spikes (Figure 3 and

Figure 4).

Note: Connecting the power source to an electrical

system ground is not a requirement for proper system

operation. However, it is a good installation practice in

order to maintain the same potential between all

controllers and Protective Earth.

Configuration Jumper Location and

Identification

Controllers have the following onsite configurable

jumpers.

IMPORTANT: Voltage: 24 VAC/DC; +15%, Class 2.

This is a Class 2 Product. Use a Class 2 transformer

only (rated at 100 VA or less at 24 VAC) to power the

controller.

IMPORTANT: Maintain consistent polarity when

you connect the controllers and devices to the

transformer.

Figure 3: Power Wiring - DC

Figure 4: Power Wiring - AC

IMPORTANT: Connect the COM terminal of each

controller and each peripheral to the same terminal

on the secondary side of the transformer. One

terminal on the secondary side of the transformer

must be connected to the building’s ground. Failure

to maintain consistent polarity throughout the entire

network will result in a short circuit and damage to

the controller.

IMPORTANT: The COM terminals of the controller

are internally wired to the 24 V COM terminal of the

power supply. Connecting a peripheral or another

controller to the same transformer without

maintaining polarity between these devices will

cause a short circuit.

Figure 5: LN-PRG203-12 Controller Jumper

Locations

* Factory-

default position

Subnet

Port

Wireless

Port

Net to Subnet Settings

Enabled Disabled*

LN Series Free Programmable LN-PRGxxx-12 Controllers Installation Instructions 5

Figure 6: LN-PRG300-12 Controller Jumper

Locations

* Factory-default positions

Universal Outputs (UO)

0-10V / 0-20mA Select

0-10V* 0-20mA

Subnet

Port

Wireless

Port

Universal Inputs (UI)

0-20mA Enable / Disable

0-20mA

Disable* 0-20mA

Enable

ORKS

Network Board

Net to Subnet Settings

Enabled Disabled*

Figure 7: LN-PRG4x0-12 and 6x0-12

Controller Jumper Location

* Factory-default positions

ORKS

Network Board

Universal Outputs (UO)

0-10V / 0-20mA Select

0-10V* 0-20mA

Universal Inputs (UI)

0-20mA Enable / Disable

0-20mA

Disable* 0-20mA

Enable

PRG6x0-12 ONLY:

Subnetwork EOL

Termination

Subnet

Port

EOL Off

(Disabled)* EOL On

(Enabled)

EOLOff

(Disabled)* EOL On

(Enabled)

Wireless

Port

Typical locations: Quantity may vary according to controller model

Net to Subnet Settings

Enabled Disabled*

LN Series Free Programmable LN-PRGxxx-12 Controllers Installation Instructions6

Figure 8: Typical Power and Network Connections with an LN-SVSENx-0 Input

typ_power_connection

Service PIN Button

CoolHeat

Return Air Temperature

10k?typeII

Supply Air Temperature

10k?typeII

Mixed Air Temperature

10k?typeII

Supply Air Humidity

2-wire, 4-20mA

Supply Fan State

Digital contact

Return Fan State

Digital contact

Damper

Return Air Humidity

2-wire, 4-20mA

CT CT

0-10

VDC

0-10

VDC

Humidifier

Supply

Fan

Starter

Return

Fan

Starter

0-10

VDC

0-10

VDC

Transformer

24VAC

4A Fuse

Fast Acting

Electrical

System

Ground

LN SVSENx

EOL Enabled at

the last sensor

at the end of

the Bus

EOL

OFF

From Previous Device

To Next Device

ORKS

Network

249

ohm

Resistor built

in for inputs configured as

4-20mA

ORKS

Back of

LN SVSENx

LN Series Free Programmable LN-PRGxxx-12 Controllers Installation Instructions 7

Input Wiring

The controllers have physical connections for inputs,

which are software configurable from within the

device’s Graphical Programming Interface (GPI) LN

plug-in, the LN plug-in when using LN Builder, or the

LN wizard when using the BSC Workbench. Each input

can be configured for digital, resistive, current, or

voltage signals. You must configure the input types

properly in the software plug-in or wizard to ensure

proper input readings.

Note: For wire length less than 75 feet (23 m), use

either a shielded or unshielded 18 AWG wire.

Note: For a wire up to 200 feet (61 m) long, a shielded

18 AWG wire is recommended.

Note: The wire should be shielded on the controller

side and the shield length should be kept as short as

possible.

Wiring Digital Inputs

Use this input configuration to monitor digital dry

contacts, as well as pulsed contacts.

Wiring Resistive Inputs

Use this input configuration to monitor Resistance

Temperature Detectors (RTD); thermistors, such as

1,000 ohm RTDs to 10k ohm Type II and Type III

thermistors; and potentiometers, such as 10k ohm and

100k ohm.

Wiring Current Inputs

Current inputs have a range of 0 to 20 mA. Depending

on the transducer power requirements, you may use

any of the following input configurations. Use Figure 12

for the 2-wire, 0 to 20 mA transducer powered by the

controller’s internal 15 VDC power supply.

Use the Figure 13 configuration for a 2-wire, 0 to 20

mA transducer powered by an external 24 AC/DC

power supply.

Table 1: Controller Input Support

Controller Fast and Slow

Pulse Inputs

support

Current

Input

Jumper

support:0to

10 VDC/0 to

20 mA

50 Hz: 10

minimum

ON/OFF

(Fast

Pulse)

1 Hz: 500

minimum

ON/OFF

(Slow

Pulse)

LN-PRG203-12 none Ul1 to Ul6 none

LN-PRG300-12 Ul1 to Ul4 Ul5 to Ul10 yes; see

Figure 16 and

the section

Configuration

Jumper

Location and

Identification

LN-PRG4x0-12 Ul1 to Ul4 Ul5 to Ul12

LN-PRG6x0-12 Ul1 to Ul4 Ul5 to Ul16

IMPORTANT: Before connecting any input

equipment to the controller, refer to the

manufacturer’s installation guide.

Figure 9: Digital Input – Digital Dry Contact

(N.O. and N.C.)

Figure 10: Resistive Input – RTD/Thermistor

Input

Figure 11: Resistive Input – 10k ohm

Potentiometer Input

Figure 12: Current Input – 2-Wire Transducer

Figure 13: Current Input – 2-Wire

Transducer, Externally Powered

LN Series Free Programmable LN-PRGxxx-12 Controllers Installation Instructions8

Use the Figure 14 configuration for a 3-wire, 0 to 20

mA transducer powered by an external 24 AC/DC

power supply.

Use the Figure 15 configuration for a transducer

For the LN-PRG300-12, LN-PRG4x0-12, and

LN-PRG6x0-12 controllers, it is not necessary to

connect a 249 ohm resistor at the input as this resistor

is built-in to the controller. For these models, configure

the input jumper as follows. For jumper location, see

Configuration Jumper Location and Identification.

Wiring Voltage Inputs

Voltage inputs have a range of 0 to 10 VDC or

0 to 5 VDC. Connect the voltage input according to

Figure 17 if you are using a 3-wire 0 to 10 V or 0 to 5 V

transducer.

Connect the voltage input according to Figure 18 if the

transducer is powered by its own power source.

Wiring Pulse Inputs

The input must be wired according to the requirements

of the connected pulse meter (for example, fast pulse

or slow pulse and internal or external supply type). See

Table 1.

Configure the Pulse Input Types in the software to

verify the pulse meter is powered correctly (set the

Internal/External Supply Type).

Connect the pulse input according to Figure 19 for a

pulse meter that can pull down a +5 VDC supply with a

10k ohm pull-up resistor (internal supply type).

When you use a pulse meter that requires more than

5 VDC to operate, you must use a Fast Pulse Input

type (Table 1). An external power supply is required to

operate the pulse meter. You may use the controller’s

built-in power supply as shown in Figure 20 or use an

external power source (from 6 VDC to 27 VDC

maximum — see Figure 21).

Figure 14: Current Input – 3-Wire Transducer,

Externally Powered

Figure 15: Current Input – Transducer with Its

Own Power Source

Figure 16: Equivalent Circuit for 0 to 20 mA

Current Input Showing the Jumper Setting for

the LN-PRG300-12, LN-PRG4x0-12, and

LN-PRG6x0-12 Controllers

Figure 17: Voltage Input – 3-Wire Transducer

Figure 18: Voltage Input – Transducer with Its

Own Power Source

Figure 19: All Pulse Input Types – Internal

Supply, 2-wire Pulse Meter

Figure 20: Fast Pulse Input Type - External

Supply, 2-wire Pulse Meter for LN-PRG300, LN-

PRG4x0-12, and LN-PRG6x0-12 Controllers

LN Series Free Programmable LN-PRGxxx-12 Controllers Installation Instructions 9

LN Series Communicating Sensors Wiring

The LN Communicating Sensors (LN-SVSEN-0 and

LN-SVSENH-0) are communicating room temperature

sensors with backlit displays and graphical menus.

Connect the LN-SVSENx-0 Sensor to the SUBNET

PORT modular connector of the controller with a

standard Category 5e Ethernet patch cable fitted with

RJ-45 connectors.

If you make your own patch cable, use category 5e

crimped with RJ-45 connectors either T568A or T568B.

Patch cable fitted with connectors supplied by Johnson

Controls are wired as T568B.

For more information on network topology and length,

cable type, setting the Subnet ID and more, refer to the

LN Series Communicating Sensors Installation

Instructions (LIT-12011795) and the LONWORKS

LN-Series Network Communication and Interface

Guide Technical Bulletin (LIT-12011253).

Output Wiring

Each controller has physical connections for digital

(triac) or universal outputs, depending on type and

model. These outputs are all software configurable.

Table 3 shows the controller outputs.

For jumper location, see Configuration Jumper

Location and Identification.

Note: Before you connect output equipment to the

controller, refer to the installation instructions from the

equipment manufacturer.

IMPORTANT: Do not crimp one connector as

T568A and the other connector as T568B on the

same cable.

Figure 21: Fast Pulse Input Type – External

Supply, 2-wire Pulse Meter

Figure 22: T568A and T568B Crimp Wire

Sequence for an RJ-45 Connector

T568A T568B

Stripe Solid

12 345678 12345678

Pair 3 Pair1Pair2Pair4 Pair 2 Pair1Pair3Pair4

Key:

Figure 23: Pins on RJ-45 Jack Face

Table 2: T568A and T568B Terminations for RJ-45

Connector

Pin T568A (at both

cable ends) T568A (at both

cable ends)

Pair Color Pair Color

1 3 white/green

stripe 2 white/orange

stripe

23 green solid 2 orange solid

32 white/orange

stripe 3 white/green

stripe

41 blue solid 1 blue solid

51 white/blue stripe 1 white/blue stripe

62 orange solid 3 green solid

74 white/brown

stripe 4white/brown

stripe

84 brown solid 4 brown solid

Table 3: Controller Output Support

Controller Digital

(Triac)

Outputs

Universal

Outputs Jumper 0

to 10

VDC/0 to

20 mA

LN-PRG203-12 53no

LN-PRG300-12 0 8 yes

LN-PRG4x0-12 012yes

LN-PRG6x0-12 012yes

LN Series Free Programmable LN-PRGxxx-12 Controllers Installation Instructions10

Output Wiring Recommendations

Output wiring recommendations include:

• For a wire length less than 75 feet (23 m) long, use

either a shielded or unshielded 18 AWG wire.

• For a wire length up to 200 feet (61 m) long, use a

shielded 18 AWG wire.

• The shield of the wire should be grounded on the

controller side and the shield length should be kept

as short as possible.

Wiring Digital Outputs (DOx)

Digital outputs are all made of triacs and there is not

voltage present on the output terminals. Therefore, you

must add an external power source, typically 24 VAC.

Note: To measure the state of a triac output, an

external load must be connected.

If a 24 VAC relay is being controlled, connect it to a

digital output according to Figure 24 or Figure 25,

ensuring that the transformer’s secondary wiring is

grounded as shown.

If a floating actuator is being controlled, connect the

digital output according to Figure 26.

Wiring Universal Outputs (UOx)

You can configure universal outputs to provide either a

discrete signal of 0 or 12 VDC, a linear signal ranging

from 0 to 10 VDC, or a 0 to 20 mA signal

(LN-PRG300-12, LN-PRG4x0-12 and LN-PRG6x0-12

only). The discrete signal can be used to generate a

pulse wave modulation (PWM) signal or a simple

two-state signal. These outputs are protected by an

auto-reset fuse.

Wiring Discrete Outputs

If a 12 VDC relay is being controlled, connect it to a

universal output according to Figure 27.

Wiring Current Outputs

The 0 to 20 mA signal is configurable by jumper

(available for LN-PRG300-12, LN-PRG4x0-12, and

LN-PRG6x0-12 only; for jumper location, see

Configuration Jumper Location and Identification).

Figure 24: Digital Triac Output — Relay Using

the Same Power Source as Controller

DOx

Cx 24VAC Relay

Transformer

24VAC

24VCOM AC

Electrical

System Ground

Fuse: 4A Max.

Fast Acting

Controller

24VAC

Load

DOx

Cx 24VAC Relay

Transformer

24VAC

24VCOM AC

Electrical

System Ground

Fuse: 4AMax.

Fast Acting

Controller

24VAC

Load

Line Switching Neutral Switching

Figure 25: Digital Triac Output, Line

Switching – Relay Using an External Power

Source

DOx

24VAC Relay

Transformer

Electrical

System Ground

Fuse: 4A Max.

Fast Acting

24VAC

Load DOx

24VAC Relay

Transformer

Electrical System

Ground

Fuse: 4A Max.

Fast Acting

24VAC

Load

Line Switching Neutral Switching

Figure 26: Digital Triac Output –

Floating Actuator

Actuator

24VAC

DOy

DOx

Figure 27: Discrete 0 or 12 VDC Universal

Output – Relay

Figure 28: 0 to 20 mA Universal Output and

Jumper Configuration

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