TREND IQ422 - User Manual

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IQ422, IQ4NC/00, IQ4NC/12 Controllers Installation Instructions - Mounting TG201264 Issue 12, 04-Feb-2020. Applies to v4.30 1

Installation Instructions - Mounting

IQ422, IQ4NC/00, IQ4NC/12

Controllers

Important: Retain these instructions

These instructions shall be used by trained service

personnel only.

If the equipment is used in a manner not

specied by these instructions, the protection provided by the

equipment may be impaired.

https://partners.trendcontrols.com

GB DE DK FIES FR

IT NL NO RU

PL SE

WARNING Removal of cover exposes dangerous

voltages.

WARNING:

To reduce the risk of electrical shock or re

do not interconnect the output of di󰀨erent Class 2 circuits

It is recommended that the installation should comply

with the local electrical safety installation practices (e.g.

HSE Memorandum of Guidance on Electricity at Work

Regulations 1989, USA National Electric Code).

Any connected devices must be insulated from mains by

reinforced insulation.

3 INSTALLATION

1 BOX CONTENTS 2 STORING

CONTENTS

1 Box Contents .................................................................1

2 Storing ...........................................................................1

3 Installation .....................................................................1

IQ422, IQ4NC/00, IQ4NC/12

Installation Instructions

- Mounting (TG201264)

4 Removing from DIN Rail .............................................11

5 Field Maintenance ....................................................... 11

7 End User Licence Agreement .....................................12

6 Disposal ....................................................................... 12

Labels used on IQ422, IQ4NC/00, IQ4NC/12

Caution, consult documentation

Caution, possibility of electric shock

123

230VAC

230 Vac input power connector

(../230 only)

123

24V

24 Vac input power connector (../24VAC only)

RS-232 local supervisor port

Note: This port provides power to connected RD

or SDU product that is within the limits described

by EN60950-1 (table 2B).

Wallbus connector

(not IQ4NC/00/.. or IQ422/00/XNC/..)

AUX

72 73

AUX

+V +V

70 71

Auxiliary supply output connectors

(not IQ4NC/00/.. or IQ422/00/XNC/..)

Universal input connector

(not IQ4NC/00/.. or IQ422/00/XNC/..)

USB (for future use)

Terminator for MS/TP (used on IQ4NC only)

or RS-485 (used on IQ422/../XNC/.. only)

82 83

MS/TP

MS/TP connector (IQ4NC only)

82 83

RS-485

RS-485 connector

(used on IQ422/../XNC/.. & /INT only)

Ethernet connector/indicators

Note: For temperatures below 0°C (32°F) special care must be

taken that there is no condensation on or within the unit.

+60°C

(+140°F)

-25°C

(-13°F)

90%RH

86 87

Trend current loop connector

(IQ4NC and ../LAN variants only)

Analogue

output connector

(not IQ4NC/00/.. or IQ422/00/XNC/..)

USB local engineering port

Power on indicator

Watchdog indicator

LAN OK indicator

Service button and indicator

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This document outlines the installation and maintenance procedures for the IQ422, IQ4NC/00, and IQ4NC/12 Controllers. These instructions are intended for trained service personnel only, as improper use may impair the device's protection.

Function Description

The IQ422, IQ4NC/00, and IQ4NC/12 are controllers designed for energy management systems. They facilitate connections for various inputs and outputs, including universal inputs, analogue outputs, auxiliary supply outputs, and network interfaces like Trend Current Loop, MS/TP, XNC, Wallbus, and Serial MODBUS. The controllers are capable of managing and monitoring different aspects of a building's energy consumption and environmental controls.

Important Technical Specifications

Dimensions:

Width: 157.5 mm (6.2")
Height: 116 mm (4.57")
Depth: 53.5 mm (2.11")

Environmental Ratings:

Protection: IP20, NEMA1
Altitude: <4000 m (13124')
Pollution Degree: 2 (Only non-conducting pollution occurs)
Operating Temperature: -25°C (-13°F) to +60°C (+140°F)
Storage Temperature: -25°C (-13°F) to +60°C (+140°F)
Humidity: 0-90% RH (non-condensing)

Power Supply:

230 Vac Variants:
- Input: 230 Vac ±10% 50/60 Hz, up to 44 VA
- Requires a dedicated 5 A fuse (IEC60269/BS1362) and a suitably rated switch for disconnection.
- Must be earthed (grounded).
24 Vac Variants:
- Input: 24 Vac ±10% 50/60 Hz, up to 28 VA
- Requires a suitably rated switch for disconnection.
- If the supply transformer's secondary is earthed, it MUST be connected to the controller's 0V terminal (terminal 2).
- UL rated as 'UL916 listed open energy management equipment'.
Terminal Specifications (Power & Inputs/Outputs):
- Terminal Size: 0.14 to 2.5 mm² (22 to 12 AWG)
- Terminal Screw Torque: 0.45 to 0.62 Nm (4 to 5.5 lb.in)
- Power supply cable must have a maximum operating temperature of at least 80°C (176°F). For UL rating, input power connections must use 18 AWG or larger wire rated at least 90°C (194°F).

Universal Inputs (IN1 to IN6):

Input Types: Voltage (0 to 10 V), Thermistor (10 kohm, potentiometer 1 to 11 kohm), Digital (volt-free contact, open collector, logic circuit TTL/CMOS), Current Loop.
For UL rating, use 22 to 14 AWG - Cu only cable. TP/1/1/22/HF/200 (Belden 8761) cable recommended.
Screened cable is generally not required unless in noisy environments; if used, the screen must be connected to the local panel/enclosure ground and left unterminated at the far end.

Analogue Outputs (OUT7 to OUT12):

Output: 0 to 10 Vdc at up to 20 mA (reduced to 18 mA maximum above +40°C).
For UL rating, use 22 to 14 AWG - Cu only cable. TP/1/1/22/HF/200 (Belden 8761) cable recommended.
Screened cable guidelines are similar to universal inputs.

Auxiliary Supply Output:

Output: 20 Vdc ±10%.
230 Vac Variants: 120 mA maximum shared between terminals 70, 71, plus 120 mA maximum from terminal 72.
24 Vac Variants: 240 mA maximum shared between all three terminals (70, 71, 72). Reduce to 200 mA above 40 °C.
Combined current from auxiliary supply outputs, Wallbus, RS232, and analogue outputs is 240 mA. Exceeding this may cause the output voltage to fall out of specification.

Network Interfaces:

Trend Current Loop Network:
- Terminal Size: 0.14 to 2.5 mm² (22 to 12 AWG).
- Maximum cable length depends on cable type and baud rate (e.g., 1000m for Belden 8723 at 1k2 baud).
- Adjacent devices may specify different maximum cable lengths and baud rates; the shortest length applies.
- If enabled, LAN communications require an intact network or a loop back fitted if no network is present.
MS/TP Trunk (IQ4NC only):
- Cable: Tinned copper, screened, twisted-pair with characteristic impedance 100-130 ohms. Distributed capacitance <100 pF/m (conductors) and <200 pF/m (conductors to screen).
- Maximum recommended length: 1200 meters (4000 feet) with AWG 18 (0.82 mm²) cable.
- Supports up to 3 repeaters between devices.
- Earthing: All ground terminals and 24 Vac power supply neutrals must connect to panel/enclosure ground.
- Screen: Single point screen ground, continuous, not grounded via controller terminal. Ground screen at one end, cut back at the other.
- Terminators: Bus must be terminated at each end with a 100-130 ohm, ±1%, 1 Watt resistor. IQ4NC has a built-in terminator.
- Maximum Devices: Up to 64 IQeco's or other manufacturers' devices, supporting up to 32 'unit' loads (IQeco, IQ4NC, IQ3/BINC are 1¼ BACnet 'unit' loads).
- Biassing: IQ4NC provides network biassing (470 ohms); maximum two devices can provide biassing.
XNC Interface (RS-485, RS-232, Ethernet):
- RS-485 2-wire system: 32 devices maximum. Terminal size 0.14 to 2.5 mm² (22 to 12 AWG). Terminator switch for 120 Ohm termination.
- RS-232 system (local supervisor port): RJ12/FFC68 Plug. Not usable for supervisory tools when used for XNC.
- Earthing & Isolation: If units are in the same cabinet with the same power supply, good physical earth is required. If in different cabinets or with different power supplies, cabinets must be isolated. Surge protection recommended for bus problems.
Wallbus:
- Terminal Size: 0.14 to 2.5 mm² (22 to 12 AWG).
- Cable Type: Unscreened twisted pair.
- Maximum Cable Length: 60 m (200 ft).
- Number of Devices: Up to 14 (subject to power loading).
Serial MODBUS (/INT only):
- RS-485 Port: Unscreened twisted pair. Max length 60 m (200 ft).
- RS-232 Port: RJ11 (FCC68). RJ11 to 9-way male D type cable (CABLE-IQ4INTRS232). Unscreened twisted pair for main MODBUS. Max length 60 m (200 ft).
- Address Range: Up to 254.
- Number of Devices: Dependant on 'unit' load (up to 32 'unit' loads). IQ4 = 1 electrical load. MODBUS repeater may be needed for >32 'unit' loads.

Usage Features

DIN Rail Mounting: The controllers are designed for easy mounting on a DIN rail. Removal from the DIN rail is also straightforward.
Rotating Covers: The units feature rotating covers that open to provide access to terminals and connections, and close to protect them.
Barcode Label: A large barcode label can be attached to the panel for easy identification.
Polarity Independence: Wallbus connections are polarity independent, simplifying wiring.
Indicators: Power on, Watchdog, LAN OK, and Service button indicators provide visual feedback on device status.
Local Engineering Port: A USB port is available for local engineering access.
Configuration: The IQ4 Configuration Manual (TE201263/TE201265) provides detailed instructions for configuring the device.

Maintenance Features

No Routine Maintenance: The IQ422, IQ4NC/00, IQ4NC/12 controllers do not require any routine maintenance.
No Serviceable Parts: The units contain no serviceable parts. Users are warned not to attempt to open the unit, as this may cause damage.
Disposal: At the end of their useful life, the packaging and product should be disposed of at a suitable recycling centre, in accordance with the WEEE Directive. Do not dispose of with normal household waste or by burning.