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DESCRIPTION
This Manual describes the installation and operating instructions for the NX2020 20Nm /15lb.-ft.
servo motor. Other servo motor manuals are:
NX2004 - 4Nm /3lb.-ft. servo motor
NX2050 - 50Nm /37lb.-ft. servo motor
SAFETY INFORMATION
WARNING: When this equipment is mounted onto an appliance, all external timers/control-
lers must be listed or component recognized by authorities who have jurisdiction for the
specific purpose for which they are used.
Before attempting to install, commission or operate this equipment all relevant sections of this docu-
ment must be read and fully understood, failure to follow them could damage the product or cause a
hazardous condition. If in doubt about any requirements consult the supplier.
Check the ratings in the these instructions to ensure the product is suitable for your application.
Installation, commissioning or adjustment of this product MUST be carried out by suitably trained
mechanical and electrical engineers or personnel qualified by training and experience.
After installation is complete, check the product operation is as described in these instructions.
The manufacturer of this equipment accepts no liability for any consequences resulting from inap-
propriate, negligent or incorrect installation, commissioning or adjustment of operating parameters
of the equipment.
This equipment must only be mounted onto burners as detailed in the contract specification. The sup-
plier must approve any change in the specification in writing.
Control covers must not be left off while power is on. If it is essential to do so while rectifying faults
only personnel qualified by training and experience should be involved.
The time any covers are off must be kept to a minimum and warning notices must be posted.
Before attempting any work on this equipment, the electrical supplies must be isolated.
Safety devices must not be removed or over-ridden. Any faults once detected must be corrected
before the unit is operated.
Servo Motor Installation
Year 2000 Compliant in accordance with BSI document DISC PD2000-I:1998
®
APRIL 2000
®
Fireye
NEXUS
NX20-1, -2
NEX-2020
1
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Summary of Contents for Fireye NEXUS NX20-1
- Page 1 ® NEX-2020 APRIL 2000 ® Fireye NEXUS NX20-1, -2 Servo Motor Installation Year 2000 Compliant in accordance with BSI document DISC PD2000-I:1998 DESCRIPTION This Manual describes the installation and operating instructions for the NX2020 20Nm /15lb.-ft. servo motor. Other servo motor manuals are: NX2004 - 4Nm /3lb.-ft.
-
Page 2: Safety Advice
® Note: The manufacturer of this equipment has a policy of continual product improvement and reserves the right to change the specification of the equipment and the contents of this manual with- These mounting and operating instructions are intended to give the knowledge which is necessary to carry out the mounting and adjustment of NX20servo motor safely and correctly. - Page 3 ® SERVO MOTOR DESCRIPTION FIGURE 1. 1. Plastic Cover 2. Tapped Holes M6 x 4, M8 x 4 3. Locating Spigot 4. Mounting Surface 5. Output Shaft 6. Plug -PG11 7. Screw Entry - PG11 with 3/8”NPT Backing Plate 8. Limit Switch Cams x 2 9.
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Page 4: Installation
® INSTALLATION FIGURE 2. MECHANICAL MOUNTING Fasten the NX20 servo motor using four M6 metric bolts through a suitable mounting into the threaded holes (1) using spigot (2) for location so that the mounting surface (4) rests flat. The depth of the threaded holes (1) is 13mm The output drive shaft (3) should be connected using a suitable arm, link or flexible coupling. - Page 5 ® ADJUSTMENTS/COMMISIONING Adjustments Before the servo motor is opened or commissioned the Safety Information on Page 2 and safety advice Section 2 must have been read. The adjustment of the limit miscroswitches is carried out by turning the white adjusting discs to rotate black cams.
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Page 6: Technical Data
® Fitting Housing Cover Before mounting the housing cover onto the servo motor, check that the cams of the end stop microswitches have been correctly adjusted and the connecting leads are correctly screwed tightly in the terminals. Check whether the actuating element is totally closed when the controller signals the corre- sponding end stop. - Page 7 ® FIGURE 4. DIMENSIONS NX20 SERVO MOTOR...
- Page 8 Fireye warranty, as stated in its General Terms and Conditions of Sale, pertains only to the Fireye products and not to any other equipment or to the combined system or its overall performance.