Johnson Controls ATC1510 User manual

ATC1510 Advanced Terminal Unit Controller

Installation Guide

About This Product

The Advanced Terminal Unit Controller (ATC) runs

custom, freely-programmed applications, and provides

the inputs and outputs required to monitor and control

a wide variety of HVAC/R equipment.

The ATCs operate as BACnet® Application Specific

Controllers (B-ASC) and integrate into Johnson

Controls® and third-party BACnet systems.

Communication Protocols

You can configure the field bus communication

protocol in the ATC as a standard BACnet MS/TP device

or an N2 protocol device. You can use the Controller

Configuration Tool (CCT) to switch the communication

protocol. Switchable communication protocols provide

a cost-effective upgrade and modernization path for

customers with existing N2 controllers.

Compliance Information

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.

This Class (A) digital apparatus meets all the

requirements of the Canadian Interference-Causing

Equipment Regulations.

Installation

Observe the following guidelines when installing an

ATC:

• To minimize vibration and shock damage to the

controller, transport the controller in the original

container.

• Verify that all parts shipped with the controller.

• Do not drop the controller or subject it to physical

shock.

Parts Included

• One Advanced Terminal Unit Controller

• One installation instruction guide

• 10 cable ties

• One multi-language warning sheet

Accessories

Table 1: Accessories

Product Code Number Description

LC-IP20 IP20 Terminal Cover Kit

Required Materials and Special Tools

• Three fasteners appropriate for the mounting

surface (M4 screws or #8 screws)

• One 20 cm (8 in.), or longer, piece of 35 mm DIN rail

and the appropriate hardware for DIN rail mount

• Small straight-blade screwdriver to secure the wires

in the terminal blocks

*241014302015—*

24-10143-02015 Rev —

2019-05-20

(barcode for factory use only)

LC-ATC1510-0

Mounting the Controller

This section describes how to mount the ATC.

1. Horizontally mount a 20 cm (8 in.) section of 35

mm (1.3 in.) DIN rail.

2. On the back of the controller, extend the two

mounting clips as illustrated.

3. Position the controller so that the two extended

mounting clips are facing downwards, and place

the controller on the DIN rail.

4. Push the bottom mounting clips up to secure the

controller on the DIN rail.

ATC1510 Advanced Terminal Unit Controller Installation Guide2

Wiring

The following procedure describes how to wire the

ATC. The ATC ports and buses are described in Figure 6.

CAUTION

Risk of Electric Shock

Disconnect the power supply before making electrical

connections to avoid electric shock.

ATTENTION

Risque de décharge électrique

Débrancher l'alimentation avant de réaliser tout rac-

cordement électrique afin d'éviter tout risque de

décharge électrique.

CAUTION

Risk of Property Damage

Do not apply power to the system before checking all

wiring connections. Short circuited or improperly con-

nected wires may result in permanent damage to the

equipment.

ATTENTION

Risque de dégâts matériels

Ne pas mettre le système sous tension avant d'avoir

vérifié tous les raccords de câblage. Des fils for-

mant un court-circuit ou connectés de façon incor-

recte risquent d'endommager irrémédiablement

l'équipement.

1. Wire the FC Bus Terminal Block. The ATC features

a blue, removable, 4-terminal FC Bus block that

fits into a board-mounted jack. Wire the FC bus as

shown in Figure 1.

Note: Controllers can be daisy-chained by

inserting two wires into each connection.

Figure 1: FC Bus Terminal Block Wiring

2. Wire the SA Bus Terminal. The ATC features a

brown, removable, 4-terminal SA Bus block that

fits into a board-mounted jack. Wire the SA Bus as

shown in Figure 2.

Note:

- SA bus devices can be daisy-chained

by inserting two wires into each

connection.

- The SA BUS PWR terminal on the ATC

supplies 15 VDC, up to 210 mA. The

SA BUS PWR terminal can be used to

connect the 15 VDC power leads on

the SA Bus to power other devices

that are connected in a daisy chain

configuration. If a device has an SA

BUS PWR output, do not connect it to

the ATC SA BUS PWR output.

ATC1510 Advanced Terminal Unit Controller Installation Guide 3

Figure 2: SA Bus Terminal Block Wiring

3. The SA Bus port on the controller is an RJ-12, 6-

position modular jack that provides a connection

for the Mobile Access Portal (MAP) Gateway, the

VAV Balancing Tool, specified network sensors, or

other SA Bus devices with RJ-12 plugs. Wire the SA

Bus port as shown in Figure 3.

Note: The SA port is connected internally to

the SA Bus terminal block.

Figure 3: Pin Number Assignments for SA Bus

Ports

4. Wire the Power Supply Terminal Block. The ATC

uses a 240 VAC, +/-10% supply power terminal

two-pin, three-position, red connector.

a. Connect the supply wires to the red plug-

in terminal block as shown in Figure 4.

b. Insert the plug-in terminal block into the

ATC. For the location of the ATC power

input, see Figure 6.

Figure 4: Power Supply Wiring

A: Line

B: Neutral

Maximum Cable Length versus Load Current

For this system to operate correctly, the maximum

wire length is 137.2 m (450 ft) and the wire cross-

sectional area is 1.5 mm2 (16 AWG) to 0.5 mm2 (22

AWG).

Input and Output wiring guidelines

Table 2 and Table 3 provide information and guidelines

about the functions, ratings, and requirements for the

controller input and output terminals, and guidelines

for determining proper wire sizes and cable lengths.

In addition to the wiring guidelines in Table 2 and Table

3, observe these guidelines when wiring controller

inputs and outputs:

• Run all low-voltage wiring and cables separate from

high-voltage wiring.

• All input and output cables, regardless of wire size

or number of wires, should consist of stranded,

insulated, and twisted copper wires.

• Shielded cable is not required for input or output

cables.

• Shielded cable is recommended for input

and output cables that are exposed to high

electromagnetic or radio frequency noise.

• Inputs/outputs with cables less than 30 m (100 ft)

typically do not require an offset in the software

setup. Cable runs over 30 m (100 ft) may require an

offset in the input/output software setup.

ATC1510 Advanced Terminal Unit Controller Installation Guide4

I/O terminal blocks, ratings and requirements

Table 2: I/O terminal blocks, functions, ratings, requirements, and cables

Terminal Block label Terminal

label Function, ratings, requirements Determine wire size and

maximum cable length

Analog Input - Voltage Mode (0–10 VDC)

10 VDC maximum input voltage

Internal 10k ohm Pull-down

See Guideline A in Table 3

Analog Input - Resistive Mode (0–600k ohm)

Internal 12 V. 15k ohm pull up

Qualified Sensors: 0-2k ohm potentiometer, RTD (1k Nickel

[ Johnson Controls® sensor], 1k Platinum, and A99B Silicon

Temperature Sensor) Negative Temperature Coefficient (NTC)

Sensor

See Guideline A in Table 3.INn

Binary Input - Dry Contact Maintained Mode

1 second minimum pulse width

Internal 12 V. 15k ohm pull up

See Guideline A in Table 3.

UNIVERSAL

(Inputs)

ICOMn

Universal Input Common for all Universal Input terminals

Note: All Universal ICOMn terminals share

a common, which is isolated from all other

commons.

Same as (Universal) INn

Binary Input - Dry Contact Maintained Mode

0.01 second minimum pulse width

Internal 18 V. 3k ohm pull up

INnBinary Input - Pulse Counter/Accumulator Mode

0.01 second minimum pulse width

(50 Hz at 50% duty cycle)

Internal 18 V. 3k ohm pull up

BINARY

(Inputs)

ICOMn

Binary Input Common for all Binary Input (IN) terminals

Note: All Binary ICOMn terminals share a

common, which is isolated from all other

commons, except the Configurable Output

(CO) common (OCOMn) when the CO is

defined as an Analog Output.

See Guideline A in Table 3.

Analog Output - Voltage Mode (0–10 VDC)

10 VDC maximum output voltage

10 mA maximum output current

Required an external load of 1,000 ohm or more.

See Guideline A in Table 3.

OUTn

Binary Output - 24 VAC Triac (External Power Source only)

Connects OUTn to OCOMn when activated.

External Power Source Requirements:

30 VAC maximum output voltage

0.5 A maximum output current

Maximum 6 cycles/hour with M9220BGx-3

40 mA minimum load current

See Guideline C in Table 3.

CONFIGURABLE

(Outputs)

OCOMn

Analog Output Signal Common All Configurable Outputs

(COs) defined as Analog Outputs (AOs) share a common,

which is isolated from all other commons except the Binary

Input common.

Binary Output Signal Common All Configurable Outputs

(COs) defined as Binary Outputs are isolated from all other

commons, including other CO commons.

Same as (Configurable) OUTn.

ATC1510 Advanced Terminal Unit Controller Installation Guide 5

Table 2: I/O terminal blocks, functions, ratings, requirements, and cables

Terminal Block label Terminal

label Function, ratings, requirements Determine wire size and

maximum cable length

OUTn

Binary Output - 24 VAC Triac (External Power Source)

Connects OUTn to OCOMn when activated.

External Power Source Requirements:

30 VAC maximum output voltage

0.5 A maximum output current

Maximum 6 cycles/hour with M9220BGx-3

40 mA minimum load current

BINARY

(Output)

OCOMn

Binary Output Common (for OUTn terminal)

Note: Each Binary Output Common terminal

(OCOMn) is isolated from all other commons,

including other Binary Output Common

terminals.

See Guideline C in Table 3.

OUTn

5 A Relay Output - Normally Open

Single-Pole, Single-Throw, Normally Open

240 VAC, 5 A Resistive, 50k cycles

240 VAC, 0.66FLA/4LRA, 50k cycles

BINARY RELAY 5A

(Output)

OCOMn

Binary Relay Output Common (for OUTn terminal)

Note: Each Binary Relay Output Common

terminal (OCOMn) is isolated from all other

commons, including other Binary Relay Output

Common terminals.

See Guideline C in Table 3.

OUTn

10 A Relay Output - Normally Open

Single-Pole, Single-Throw, Normally Open

240 VAC, 10 A Resistive, 100k cycles

BINARY RELAY 10A

(Output)

OCOMn

Binary Relay Output Common (for OUTn terminal)

Note: Each Binary Relay Output Common

terminal (OCOMn) is isolated from all other

commons, including other Binary Relay Output

Common terminals.

24VAC

24 VAC Output (for actuator power)

24 VAC, 500 mA

Same circuit as modules logic circuitry 24 VAC, SELV; Not-

limited power (>15 Watts) Class 2, 0.5 A

24VAC OUT

(Output)

COM

24 VAC Output Common

Note: The 24 VAC Output Common terminal

(COM) is isolated from all other commons.

See Guideline C in Table 3.

ATC1510 Advanced Terminal Unit Controller Installation Guide6

Cable and wire length guidelines

The following table defines cable length guidelines for the various wire sizes that may be used for wiring low-

voltage (<30 V) input and outputs.

Table 3: Cable length guidelines

Guideline1Wire size/Gauge and type Maximum cable length and

type Assumptions

1.0 mm2 (18 AWG) stranded copper 457 m (1,500 ft) twisted wire

0.75 mm2 (20 AWG) stranded copper

297 m (975 ft) twisted wire 297 m (975 ft) twisted wire

0.5 mm2 (22 AWG) stranded copper

183 m (600 ft) twisted wire 183 m (600 ft) twisted wire

0.25 mm2 (24 AWG) stranded copper

107 m (350 ft) twisted wire 107 m (350 ft) twisted wire

100 mV maximum voltage drop

Depending on the cable length

and the connected input or

output device, you may have

to define an offset in the setup

software for the input or output

point.

1.0 mm2 (18 AWG) stranded copper 229 m (750 ft) twisted wire

0.75 mm2 (20 AWG) stranded copper

297 m (975 ft) twisted wire 137 m (450 ft) twisted wire

0.5 mm2 (22 AWG) stranded copper

183 m (600 ft) twisted wire 91 m (300 ft) twisted wire

0.25 mm2 (24 AWG) stranded copper

107 m (350 ft) twisted wire 61 m (200 ft) twisted wire

100 mV maximum voltage drop

Depending on the cable length

and the connected input or

output device, you may have

to define an offset in the setup

software for the input or output

point.

See Figure 5 to select wire size/

gauge.

Use stranded copper wire.

See Figure 5 to determine cable

length.

Use twisted wire cable.

N/A

1 The required wire sizes and lengths for high-voltage (>30 V) Relay Outputs are determined by the load connected to the relay, and

local, national or regional electrical codes.

Maximum cable length versus load current

Use the following figure to estimate the maximum cable length relative to the wire size and the load current (in

mA) when wiring inputs and outputs.

Note: Figure 5 applies to low-voltage (<30 V)

inputs and outputs only.

Figure 5: Maximum wire length for low-voltage (<30 V) Inputs and Outputs by current and wire size

ATC1510 Advanced Terminal Unit Controller Installation Guide 7

Communications bus and supply power wiring guidelines

Table 4 provides information about the functions, ratings, and requirements for the communication bus and

supply power terminals. The table also provides guidelines for wire sizes, cable types, and cable lengths for wiring

the controller's communication buses and supply power.

In addition to the guidelines in Table 4, observe the following guidelines when you wire an FC or SA bus and the 24

VAC supply power:

• Run all low-voltage wiring and cables separate from high-voltage wiring.

• All FC and SA bus cables, regardless of wire size, should be twisted, insulated, stranded copper wire.

• Using shielded cable is best practice for all FC and SA bus cables.

• Refer to the MS/TP Communications Bus Technical Bulletin (LIT-12011034) for detailed information regarding wire

size and cable length requirements for FC and SA buses.

Table 4: Communications bus and supply power terminal blocks, functions, ratings, requirements, and

cables

Terminal block/

Port label

Terminal

labels Function, electrical ratings/Requirements Recommended cable type1

-FC Bus Communications

COM Signal Reference (Common) for Bus communications

FC BUS2

SHIELD Isolated terminal (optional shield drain connection)

0.5 mm2 (22 AWG) stranded, 3-wire

twisted, shielded cable recommended

-SA Bus Communications

COM SA Bus Signal Reference and 15 VDC Common

SA BUS2

PWR 15 VDC Supply Power for Devices on the SA Bus

(Maximum total current draw for the SA Bus is 210 mA.)

0.5 mm2 (22 AWG) stranded, 4-wire

(2 twisted-pairs), shielded cable

recommended.

Note: The + and - wire

are one twisted pair, and

the COM and SA PWR are

the second twisted pair of

wires.

SA BUS (Port)2SA BUS

RJ-12 6-Position Modular Connector provides:

SA Bus Communications

SA Bus Signal Reference and 15 VDC Common

15 VDC Power for devices on the SA bus and BTCVT or MAP

Gateway

24 AWG 3-pair CAT3 cable <30.5 m

(100 ft)

LINE 240 VAC Power Supply - Line

Supplies 240 VAC (50/60 Hz)

240VAC, 20VA

NEUTRAL 240 VAC Power Supply - Neutral

1.0 mm2

(18 AWG) 2-wire

1 See Input and Output wiring guidelines to determine wire size and cable lengths for cables other than the recommended cables.

2 The FC bus and SA bus wiring recommendations in this table are for MS/TP Bus communications at 38.4k baud. For more

information, refer to the MS/TP Communications Bus Technical Bulletin (LIT-12011034).

ATC1510 Advanced Terminal Unit Controller Installation Guide8

Termination details

A set of Johnson Controls termination diagrams provides details for wiring inputs and outputs to the controllers.

See the figures in this section for the applicable termination diagrams.

Table 5: Termination diagrams

Type of Field

Device

Type of Input/

Output Termination Diagrams

Temperature

Sensor UI

Voltage Input -

External Source UI

Voltage Input

(Self-Powered) UI

Current Input -

External Source

(Isolated)

Current Input -

External Source (in

Loop)

Dry Contact

(Binary Input) UI or BI

ATC1510 Advanced Terminal Unit Controller Installation Guide 9

Table 5: Termination diagrams

Type of Field

Device

Type of Input/

Output Termination Diagrams

0–10 VDC Output

to Actuator

(External Source)

0–10 VDC Output

to Actuator

(Internal Source)

Current Output CO

24 VAC Triac

Output (Switch

Low, External

Source)

Incremental

Control to

Actuator (Switch

Low, Externally

Sourced)

(Triac Jumpers

where applicable)

24 VAC Binary

Output (Switch

Low, Externally

Sourced)

(Triac Jumpers

where applicable)

24 VAC Binary

Output (Switch

High, Externally

Sourced)

(Triac Jumpers

where applicable)

ATC1510 Advanced Terminal Unit Controller Installation Guide10

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