Schneider Electric MNL-10Rxx Series, MNL-15Rxx Series, MNL-20Rxx Series Installation Instructions

Applicable Documentation

F-Number Description Audience Purpose

– Application Engineers
– Installers
– Service Personnel
– Start-up Technicians

– Application engineers
– Installers
– Start-up technicians
– Service personnel

– Application Engineers
– Installers
– Service Personnel
– Start-up Technicians

– Application Engineers
– Installers
– Service Personnel
– Start-up Technicians

– Application Engineers
– Installers
– Service Personnel
– Start-up Technicians

– Application Engineers
– Installers
– Service Personnel

Provides step-by-step installation and checkout procedures for TAC
I/A Series MicroNet MN-Sx Series Sensors. Also contains
instructions for sensor operation.

Provides an overview of the TAC I/A Series MicroNet System. It
includes brief descriptions of the hardware and software components,
and how they may be combined to create MicroNet networks and
stand-alone systems.

Provides engineering and technical information for applying and
using all aspects of WorkPlace Tech Tool.

Provides engineering and technical information to assist in
designing a complete MicroNet controller system using different
architectures, components, and software.

Provides step-by-step instructions for using WorkPlace Tech Tool.

Offers guidelines for avoiding equipment damage associated with
improperly wiring devices of varying rectifier types. Contains
instructions for identifying device rectifier type, guidelines for
correctly powering devices of varying rectifier types, and examples
illustrating proper power wiring techniques.

F-26277

F-26303

F-27254

F-26507

F-27255

F-26363

TAC I/A Series MicroNet
MN-Sx Series Sensors
General Instructions

TAC I/A Series MicroNet
System Overview

WorkPlace Tech Tool 4.0
Engineering Guide

TAC I/A Series MicroNet
Systems Engineering
Guide

WorkPlace Tech Tool 4.0
User’s Guide

EN-206 Guidelines for
Powering Multiple Full­Wave and Half-Wave
Rectifier Devices from a
Common Transformer

Installation

Inspection Inspect carton for damage. If damaged, notify carrier immediately. Inspect controllers for

damage upon receipt.

Requirements

(These items not provided)

• Installer must be a qualified, experienced technician.

• Job wiring diagrams

• To o ls :

– Drill and bits for panel mounting screws
– Digital Volt-ohm meter (DVM)
– Static protection wrist strap

• MNA-FLO-1 enclosure for connecting to conduit (optional)

• Class 2 power transformer supplying a nominal 24 Vac (20.4 to 30 Vac) with a minimum

rating of 15 Va, 50/60 Hz per controller plus Digital Output (DO) loads (if same
transformer is used). In European Community, transformer must conform to EN 60742

• Terminators:

– One LON-TERM1 terminator required for each free topology segment
– Two LON-TERM2 terminators required for each bus topology segment

• Two #6 pan head panel mounting screws or 35mm DIN rail for mounting

2 © 2010 Schneider Electric. All rights reserved. F-26266-7

Communications Wiring

Caution:

• Communication wire pairs must be dedicated to MN-Sx (S-Link) and MicroNet

LONWORKS network (LON) communications. They cannot be part of an active, bundled
telephone trunk.

• Shielded cable is not required for S-Link or LON wiring.

• If the cable is installed in areas of high RFI/EMI, the cable must be in conduit.

• If shielded wire is used, the shield must be connected to earth ground at one end only

by a 470K ohm 1/4 watt resistor. Shield must be continuous from one end of the trunk
to the other.

Communications wiring includes a connection between the controller and a TAC I/A Series
MicroNet Sensor via the S-Link and a connection between the controller and the MicroNet
LONWORKS Network (LON). An optional LONWORKS Network connection between the
controller and one TAC I/A Series MicroNet Sensor is also possible.

Sensor Link (S-Link) Wiring

S-Link wiring powers and enables the MN-Sx sensor. The S-Link needs at least 24 gage
(0.51mm), twisted pair, voice grade telephone wire. The capacitance between conductors
cannot be more than 32 pF per foot (0.3m). If shielded cable is used, the capacitance
between any one conductor and the others, connected to the shield, cannot be more than
60 pF per foot (0.3m). Maximum wire length is 200 ft. (61m).

Note:

• Controller supports one TAC I/A Series MicroNet Sensor (MN-Sx).

• S-Link wiring is polarity insensitive.

• If conduit is used between a TAC I/A Series Sensor and a controller, the MicroNet

ONWORKS network and S-Link wiring can be in the same conduit, however, they must

L
be separate cables.

• S-Link wiring can be in the same conduit with UI, AO, and DI Wiring.

MicroNet LONWORKS Network (LON) Wiring

An approved Category 4 or 5, twisted-pair (two conductors) cable may be used for both
connecting to the MicroNet LONWORKS Network and the optional LONWORKS Network
connection between the controller and MN-Sx sensor. LONWORKS Network wiring is polarity
insensitive.

Caution: Do not mix with UI, AO, DI or DO types of wiring. If conduit is used between a
TAC I/A Series Sensor and a controller, LONWORKS Network wiring and S-Link wiring can
be in the same conduit, however, they must be separate cables.

MN 100, MN 150, and MN 200 controllers use L

3150) and support polarity insensitive bus (daisy-chain) and free (all combinations of star,
tee, and loop) wiring topologies. A maximum of 62 nodes can be connected per segment.

Note: See TAC I/A Series MicroNet System Engineering Guide, F-26507 to design a
MicroNet L
approved cable types.

ONWORKS TP/FT-10 network, including recommended topologies and

ONWORKS Free Topology Transceiver (FT

• Use of the LON terminals to connect to the MN-Sx sensor permits use of the

sensor’s built-in LON Jack.

• To preserve the integrity of the network, the LON wiring connecting a TAC I/A Series

MicroNet controller to an MN-Sx sensor must be run to the sensor and back, in
daisy-chain fashion. A wire “spur” must not be used to connect the sensor to the
controller.

• While the MN-Sx sensor is not counted as a “node” in the LonWorks network

(LON), all LON wiring to the sensor must be counted when determining the length
of the FTT wiring segment.

8 © 2010 Schneider Electric. All rights reserved. F-26266-7

I/O Wiring

I/O connections include universal inputs, analog outputs, digital inputs, and digital outputs.
See Figure-2, Figure-3, and Figure-4 for proper wire terminal information.

Caution: If shielded cable is used, connect only one end of the shield to earth ground at
controller.

Universal Inputs (UI), Analog Outputs (AO), and Digital Inputs (DI)

Caution:

• Input and output devices cannot share common wiring. Each connected device requires

a separate signal and return conductor.

• Power wiring cannot share conduit with UI, AO, S-Link, LON, or DI wiring.

Note:

• If maximum closed switch voltage is not more than 1.0 V and minimum open switch

voltage is at least 4.5 V, then solid state switches may be used for a UI or a DI.

• UI, AO, DI, and S-Link wiring can share a single conduit.

UI, AO, DI, wiring needs at least 24 gage (0.51mm), twisted pair, voice grade telephone wire.
The capacitance between conductors cannot be more than 32 pF per foot (0.3m). If shielded
cable is used, the capacitance between any one conductor and the others, connected to the
shield, cannot be more than 60 pF per foot (0.3m). Table-1 provides wiring specifications.

Table-1 UI, AO, and DI Wiring Specifications.

Connection

UI, AO, and DI

Gage

AWG (m m)

18 (1.02) 300 (91)

20 (.81) 200 (61)

22 (.65) 125 (38)

24 (.51) 75 (23)

Maximum Distance

ft. (m)

F-26266-7 © 2010 Schneider Electric. All rights reserved.. 9

Figure-5 Analog Output Connections for 4 to 20mA and 0 to 10Vdc Actuators.

4 to 20mA
Actuator

Controller
Outputs

AO1

COM

AO2

+

-

Controller 0 to 10Vdc

AO1

COM

AO2

+

-

500



Controller

10K Thermistor (with
an11K ohm shunt
resistor)

UI1

COM

UI2

0 to 5Vdc
Transmitter

Controller
Inputs

Sensor Power
Source

UI1

COM

UI2

+

-

UI1

COM

UI2

+

-

250



Sensor Power

4 to 20mA
Transmitter

Controller
Inputs

Configure controller
input as 0 - 5Vdc

10 © 2010 Schneider Electric. All rights reserved. F-26266-7

Figure-6 Universal Input Connections for 10K (with 11K ohm shunt) Thermistor Sensor,

4 to 20mA Transmitter, and 0 to 5 Vdc Transmitters.

Digital Outputs (DO)

Caution:

• DO terminals accept one 16 gage (1.29mm) wire or two 18 gage (1.02mm) wires. The

selected wire gage must be consistent with the load current rating.

• DO wiring cannot be intermixed with DI, UI, S-Link, LON and AO wiring.

• MN 100, MN 150, and MN 200 controllers are Class 2 devices. Each digital output can

support up to 24 Vac/Vdc at 1.0 amp (24 VA) pilot duty.

Note: Digital Output wiring can be intermixed with class 2 power wiring.

Each DO is an isolated Form A (SPST) relay. If the transformer is sized correctly, the 24 Vac
Class 2 Controller power source (Figure-7) may be used for load power.

Table-2 Relay Output Load Specifications.

Specification Value

Maximum Relay Contact Switched Output Voltage

Maximum Output Load @ 24 VAC, Pilot Duty 24 VA

Minimum Permissible Load 10.0 mA at 5Vdc

Maximum Off-state Leakage Current 3.5 mA

Minimum Cycles at Rated Load @ 0.4 Power Factor 300,000 cycles

a

Switched output voltage is equivalent to value of input voltage.

voltage at 24H

a

terminal

24 H

24 G
GND

24 VacPrimary

Class 2

Transformer

Load

Load

Load

NO1

C1

NO2

C2

NOx

Cx

Figure-7 DO Loads and Controller Power Sharing Common Transformer.

F-26266-7 © 2010 Schneider Electric. All rights reserved.. 11

Power Supply Wiring

Observe Free or Daisy chain topology when making connection to rest of network.

Caution:

• MicroNet I/A Series Controllers are Class 2 only devices and must be connected to a

Class 2 source. Class 2 circuits must not intermix with Class 1 circuits.

• This product contains a non-isolated half-wave rectifier power supply and must not be

powered by transformers used to power other devices containing non-isolated full-wave
rectifier power supplies. Refer to EN-206, Guidelines for Powering Multiple Devices
from a Common Transformer, F-26363, for detailed information.

• Power wiring cannot be intermixed with LON, S-Link, UI, AO, or DI wiring.

• Use a Class 2 power transformer supplying a nominal 24 Vac (20.4 to 30 Vac) with a

minimum rating of 15 VA at 50/60 Hz plus digital output loads (144VA using 6 DOs or
96VA using 4 DOs if same transformer is used). The supply to the transformer must be
provided with a breaker or disconnect. In European Community, transformer must
conform to EN 60742.

• The Class 2 power transformer may be used to power multiple Class 2 powered devices

provided that the transformer is properly sized to power all equipment simultaneously
and all devices contain the same type of rectifier power supplies or internal isolation.

• The transformer frame must be grounded.

• When powering multiple Class 2 devices from the same Class 2 power transformer,

polarity must be observed (24H connected to 24H and 24G connected to 24G).

Note:

• Power wiring terminals accept one 16 gage (1.29mm) or two 18 gage (1.02mm) wires.

• Power wiring can be intermixed with DO wiring.

• Twisted or untwisted cable can be used for power wiring.

• To preserve the integrity of the network, the LON wiring connecting a TAC I/A Series

MicroNet controller to an MN-Sx sensor must be run to the sensor and back, in daisy­chain fashion. A wire “spur” must not be used to connect the sensor to the controller.

Figure-8 and Figure-9 are acceptable wiring configurations.

Primary 24 Vac

Ground Frame

of Transformer

to Known Ground

Secondary

Class 2

MNL-10Rxx
MNL-15Rxx
MNL-20Rxx

Optional connection
provides local access

1

to the L

ONWORKS network.

1

LON

S-Link

Figure-8 Single Controller Powered from a Separate Class 2 Power Source.

To rest of the LONWORKS
network.

MN-Sx
Sensor

12 © 2010 Schneider Electric. All rights reserved. F-26266-7

Ground Frame
of Transformer

to Known Ground

Primary

24 Vac

Secondary

Class 2

Class 2 Wiring

1

To rest of the LONW

ORKS

network.

MNL-10Rxx
MNL-15Rxx
MNL-20Rxx

1

MN-Sx
Sensor

S-Link

MN-Sx
Sensor

S-Link

MN-Sx
Sensor

MN-Sx
Sensor

2

Optional connection
provides local access
to the L

ONWORKS

network.

2

2

L

ON

L

ON

To other

MN 100, MN 150, MN 200, MN 440,

MN 620 and VAV controllers.

MNL-10Rxx
MNL-15Rxx
MNL-20Rxx

MNL-10Rxx
MNL-15Rxx
MNL-20Rxx

MNL-10Rxx
MNL-15Rxx
MNL-20Rxx

S-Link

2

L

ON

S-Link

2

L

ON

To rest of the LONW

ORKS

network.

Observe Free or Daisy chain topology when making connection to rest of network.

Figure-9 Multiple Controllers Powered from a Single Class 2 Power Source and Sharing

Communications in a Free Topology Segment.

F-26266-7 © 2010 Schneider Electric. All rights reserved.. 13

Checkout

Mechanical Hardware
Checkout

1. Verify wiring between TAC I/A Series MicroNet Sensor and controller is installed
according to job wiring diagram and national and local wiring codes.

Note: Wiring of the S-Link and MicroNet LONWORKS network between the sensor and the
controller is not polarity sensitive.

2. If controller is part of a MicroNet L
network wiring between controller and other devices is installed according to job wiring
diagram and national and local electrical codes.

3. Verify 24 Vac power is provided from a Class 2 power transformer and wiring is installed
according to job wiring diagrams and national and local electrical codes.

4. If multiple devices are powered from the same transformer, verify wiring polarity has
been maintained between all connected devices (24H connected to 24H and 24G
connected to 24G).

5. If multiple devices are powered from a common transformer, verify all issues associated
with powering multiple devices from a common transformer have been addressed.

Note: For more information, refer to EN-206, Guidelines for Powering Multiple Full-Wave
and Half-Wave Rectifier Devices from a Common Transformer, F-26363.

6. Verify digital outputs are wired according to job wiring diagram and national and local
electrical codes.

7. Make certain current requirements of the controlled device do not exceed rating of
controller’s digital outputs.

ONWORKS network, verify the TP/FT-10 LONWORKS

Communications
Hardware Checkout

1. Verify controlled equipment is in a manually controlled, safe state.

2. Place controller power breaker in the ON position. See job wiring diagrams.

3. Observe green Data Transmission LED (Figure-10) and do the following:

a. If green Data Transmission LED is steady on or blinking, go to step 4.

b. If green Data Transmission LED is off, check power.

4. Observe red Service LED (Figure-10) and do the following:

a. If the red Service LED is off or flashing, proceed with downloading an application

using WorkPlace Tech Tool and configuring the controller with a third party network
management tool. Refer to WorkPlace Tech Tool 4.0 Engineering Guide, F-27254,
for details on downloading applications.

b. If red Service LED is steady on, turn power to controller OFF, wait five seconds, and

turn power ON. If red Service LED is still steady on, turn power OFF and replace
controller.

Red Service

LED

Amber Data Reception LED

Green Power and Data

Transmission LED

Figure-10 Location of Controller LEDs.

14 © 2010 Schneider Electric. All rights reserved. F-26266-7

Table-3 LED Indication.

Indicator Context Status Corrective Action

Data Reception LED – amber Anytime

Data Transmission LED –
Green

Service LED – Red

Anytime

Power-up The LED blinks once to indicate successful power-up.

Wink mode

Anytime

Anytime

Anytime

Anytime

Blinks when the controller receives data from the
L

ONWORKS Network.

None required.

Remove the L
connections from the controller
and determine if the LED goes off.

On indicates a possible network connection problem, or a
large amount of network traffic is present.

If the LED does not go off, replace
the controller. If the LED does go
off, check the network topology
(connections to each node, rout­ers, terminators, etc.) and the
amount of traffic on the network.

Off indicates that data reception is not taking place.

Blinks when the controller transmits data to the

ONWORKS Network.

L

None Required

On indicates that the controller is not transmitting data.
On also indicates that power is being applied to the
controller.

Off indicates no power to controller. Check power

Blinks (3 seconds on, 1 second off) three times to indicate
physical location of the controller. If a sensor (MN-Sx) is

None Required

connected, its red occupancy LED will flash (1/sec) during
the wink period.

On indicates that the neuron application is not running.
Neuron applications are not field replaceable.

Replace the controller.

Use a third party network man­agement tool to commission the
controller, or use the change state
tool in WorkPlace Tech Tool (ver-

Blinks (1/sec) to indicate that the neuron application is
loaded, but the neuron’s communication parameters are
not loaded, are being reloaded, or have been corrupted.
Neuron is considered unconfigured. Communication
parameters cannot be configured by field personnel.

sion 4.0 or greater) to set the

®

Neuron

to the configured/on-line
state.
While the controller is unconfig­ured, WP Tech can be used to
download an application, but at
the completion of the download,
WP Tech versions 4.0 and higher
will restore the Neuron to the
unconfigured state.

Use a third party network man­agement tool to commission the
controller, or use the change state
tool in WorkPlace Tech Tool (ver­sion 4.0 or greater) to set the

Off may indicate that the neuron application is loaded but
the device is off-line. In this state, a pre-loaded HVAC
application will not run.

Neuron to the configured/on-line
state.
While the controller is off-line, WP

Tech can be used to download an
application, but at the completion
of the download, WP Tech
versions 4.0 and higher will
restore the Neuron to the off-line
state.

Off usually indicates a normal state. In this state, the
controller operates normally, and you can download
and/or run HVAC applications.

If the controller is able to accept
and/or run a downloaded HVAC
application, no action is required.

ONWORKS Network

F-26266-7 © 2010 Schneider Electric. All rights reserved.. 15