Summary of Contents for Fireye 6000 Series
- Page 1 NXCEX-6000 January 4, 2019 6000 Series NXC20EX, and NXC40EX Servos for Class 1 Division 2. Hazardous Locations...
- Page 2 Failure to observe a CAUTION may cause minor injury or damage to equipment. Health and Safety when using Fireye NEXUS Combustion Control Systems. It is the responsibility of the owner or user to make sure that the equipment described herein is installed, operated and commissioned in compliance with the...
- Page 3 WARNINGS 1. When this equipment is fitted to an appliance, due regard must also be given to the requirements of that appliance. 2. Before attempting to install, commission or operate this equipment, you MUST read and fully understand all relevant sections of this manual.
- Page 4 Nothing contained in this manual constitutes a warranty of any kind in respect of the machine or of the results to be achieved by its use. The only warranties given by Fireye in respect of any machine are those expressly given by Fireye or your supplier in the contract under which it sells the machine to its purchaser.
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Page 5: Table Of Contents
Table of Contents IMPORTANT: Please read the Health and Safety Issues before working on this equipment. 1. INTRODUCTION Outline........................ 2 Cont roller compatibility..................2 2. DESCRIPTION OF SERVO SERVO types and specification................3 3. HOW TO INSTALL AND WIRE TO THE SERVO Mechanic al fixing. -
Page 6: Introduction
It is most likely that the equipment will be permanently powered unless off -line for plant maintenance. 1.2 Controller compatibility. Each device described in this manual is CANBus powered, and compatible with all Fireye NEXUS 6000 series controllers and expansion modules. -
Page 7: Description Of Servo
24V AC asynchronous servo chassis: Actuation time: 30 seconds for 90 degrees (50/60Hz) ETC specific CANbus from the controller – Interface to 6000 series controllers. Terminals 1, 2 - 29.5Va.c. maximum (50/60Hz). Terminals 3, 4 - Data (5V) VA rating... - Page 8 2.1.2 Servo dimensions and mounting hole options.
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Page 9: How To Install And Wire To The Servo
NEC and/or CEC. Loads connected to the 6000 series controllers must not exceed those listed in the specifications as given in this manual. Consider that if more than two of these actuator types are required then the NXCBH Canbus Hub will be required to provide the extra power for third and fourth actuators. -
Page 10: Mechanical Fixing
3.1 Mechanical fixing. Brackets to support the weight of the actuator (7.5 lb) must be fabricated to suit the burner and valve/damper components. The actuators are provided with M6 tapped screw holes into the body. The maximum depth of these holes is 12mm. The geometry of the actuator fixing holes is shown in the drawing 2.1.2. Specific attention should be paid to the alignment of the output shaft and the spindle of the valve or damper, because they must align ‘centred’. - Page 11 Connect all signal cable ‘braid’ screens to earth using the screen termination clamps provided on the controller. Connect all cable screens to earth at the controller only, unless stated otherwise. Where CANBus wiring connects through one device to connect to another, terminals 5 and 6 are common to maintain screen continuity.
- Page 12 3.2.4 Actuator terminal connections. The terminals within the actuator follow the CANBus wiring system and are labelled to reduce the possibility of wiring errors. This information is in the table below: Terminal No. Module Function Voltage Range 24 – 29.5 Vac Actuator 24 Vac Supply 24 –...
- Page 13 3.2.6 Actuator assembly - safety checks. Ensure that all cable or conduit fittings are sealed correctly with reference to the manufacturers specification. Before attempting to fit the cover, ensure that the mating edges of the actuator body and cover are not damaged.
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Page 14: Selecting And Setting Up The Servo
Mounting brackets must be accurately aligned to eliminate side load on the actuator output shaft. Fireye recommend that the coupling between the actuator and the valve/damper is pinned to the shaft of both devices, after the actuator potentiometer and direction settings have been made 4.1 Valve Control Direction... -
Page 15: Locking The Servo To The Valve Shaft
4.2 Locking the Actuator to the Valve Shaft CAUTION After the position of the actuator shaft relative to the valve shaft is correctly set, each actuator must be locked to its valve shaft or air damper shaft. In order to prevent the joint between actuator and shaft moving, it is recommended that the device used to link the two items is pinned together. -
Page 16: Closed Position Settings (P00)
4.3 Closed position settings (P00). Each time a burner start-up sequence is initiated the controller will move the fuel and air damper actuators to their respective ‘Closed’ positions (P00), to prove correct actuator operation. The zero feedback position is preset at the factory to suit the majority of applications. -
Page 17: Routine Maintenance Of The Servo
Routine maintenance of the actuators WARNING EXPLOSION OR FIRE HAZARD. Hazard can cause damage to property, severe injury or death. Do not connect or disconnect equipment unless power has been switched off, or the area is known to be non-hazardous. More than one power supply disconnect may be involved. - Page 18 NXCEX-6000 January 4, 2019...