How To Steer Belt; Electrical Equipment; Operation; Conveyor Start-Up - HYTROL NBEZ Manual De Instalación Y Mantenimiento

• How to Steer the Belt
Condition 1: When the belt is running in the direction of the belt flow arrow, but
tracking (drifting) towards side "X," move tail pulley in the angle of the "Y" direction.
Condition 2: When the belt is running in the direction of the belt flow arrow, tracking
(drifting) towards side "Z," move tail pulley in the angle of the "Y1" direction.
If belt continues to track improperly, re-check all items covered in "Pre-Tracking
Inspection" and make corrections as necessary.

• Electrical Equipment

WARNING! Electrical controls shall be installed and wired by a qualified electrician. Wiring
information for the motor and controls are furnished by the equipment manufacturer.
CONTROLS
Electrical Code: All motor controls and wiring shall conform to the National
Electrical Code (Article 670 or other applicable articles) as published by the
National Fire Protection Association and as approved by the American Standards
Institute, Inc.
CONTROL STATIONS
A) Control stations should be so arranged and located that the operation of the
equipment is visible from them, and shall be clearly marked or labeled to indicate
the function controlled.
B) A conveyor which would cause injury when started shall not be started until
employees in the area are alerted by a signal or by a designated person that the
conveyor is about to start.
When a conveyor would cause injury when started and is automatically
controlled or must be controlled from a remote location, an audible device shall
be provided which can be clearly heard at all points along the conveyor where
personnel may be present. The warning device shall be actuated by the controller
device starting the conveyor and shall continue for a required period of time
before the conveyor starts. A flashing light or similar visual warning may be used
in conjunction with or in place of the audible device if more effective in particular
circumstances. Where system function would be seriously hindered or adversely
affected by the required time delay or where the intent of the warning may be
misinterpreted (i.e., a work area with many different conveyors and allied devices),
clear, concise, and legible warning shall be provided. The warning shall indicate
that conveyors and allied equipment may be started at any time, that danger exists,
and that personnel must keep clear. The warnings shall be provided along the
conveyor at areas not guarded by position or location.
C) Remotely and automatically controlled conveyors, and conveyors where
operator stations are not manned or are beyond voice and visual contact from drive
areas, loading areas, transfer points, and other potentially hazardous locations on
the conveyor path not guarded by location, position, or guards, shall be furnished
with emergency stop buttons, pull cords, limit switches, or similar emergency stop
devices.
All such emergency stop devices shall be easily identifiable in the immediate
vicinity of such locations unless guarded by location, position, or guards. Where
the design, function, and operation of such conveyor clearly is not hazardous to
personnel, an emergency stop device is not required.
The emergency stop device shall act directly on the control of the conveyor
concerned and shall not depend on the stopping of any other equipment. The
emergency stop devices shall be installed so that they cannot be overridden from
other locations.
FIGURE 6A
FIGURE 6B
D) Inactive and unused actuators, controllers, and wiring should be removed from
control stations and panel boards, together with obsolete diagrams, indicators,
control labels, and other material which serve to confuse the operator.
SAFETY DEVICES
A) All safety devices, including wiring of electrical safety devices, shall be
arranged to operate in a "Fail-Safe" manner, that is, if power failure or failure of the
device itself would occur, a hazardous condition must not result.
B) Emergency Stops and Restarts. Conveyor controls shall be so arranged
that, in case of emergency stop, manual reset or start at the location where the
emergency stop was initiated, shall be required of the conveyor(s) and associated
equipment to resume operation.
C) Before restarting a conveyor which has been stopped because of an
emergency, an inspection of the conveyor shall be made and the cause of the
stoppage determined. The starting device shall be locked out before any attempt
is made to remove the cause of stoppage, unless operation is necessary to
determine the cause or to safely remove the stoppage.
Refer to ANSI Z244.1-1982, American National Standard for Personnel Protection
– Lockout/Tagout of Energy Sources – Minimum Safety Requirements and OSHA
Standard Number 29 CFR 1910.147 "The Control of Hazardous Energy (Lockout/
Tagout)."

OPERATION

• Conveyor Start-Up

Before conveyor is turned on, check for foreign objects that may have been left
inside the conveyor during installation. These objects could cause serious damage
during start-up.
After conveyor has been turned on and is operating, check motors, reducers, and
moving parts to make sure they are working freely.

• Lubrication

Bearings
STANDARD: Supplied, sealed, and pre-lubricated. No lubrication required.

• Sequence of Operation

The Model NBEZ is made up of a series of accumulation zones, each zone
having an EZLogic® zone controller, pressure roller module(s) to apply and
remove drive to tread rollers and brakes at discharge zone. Drive actuation
and/or brake can be either electric or pneumatic based on model chosen.
The EZLogic Accumulation System provides two modes of accumulation
which are user-selectable: Singulation mode and Slug mode. The sequences
of "loading" and "unloading" the conveyor in the two modes are as follows:
CAUTION! Because of the many moving parts on the conveyor, all personnel in the
area of the conveyor need to be warned that the conveyor is about to be started.
LOADING THE CONVEYOR - SINGULATION MODE
1. Beginning with the conveyor empty, and the zone stop signal to the
discharge controller "acive," a carton placed on the conveyor continues
forward until it reaches the discharge zone (Zone #1).
2. If two or more cartons are placed on the conveyor with a space of less than
one zone length between them, the cartons will singulate (separate) during
the first few feet of travel on the conveyor, until a space approximately equal
to one zone length exists between all cartons.
3. When carton #1 activates controller "A," Zone #1 stops driving. A signal is
sent to Zone #2 indicating that Zone #1 is occupied (Figure 6A).
4. When carton #2 activates controller "B," Zone #2 stops driving. A signal is
sent to Zone #3 indicating that Zone #2 is occupied.
5. The above sequences are repeated until the conveyor is fully loaded.
UNLOADING THE CONVEYOR - SINGULATION MODE
1. Releasing carton #1 is accomplished by "de-activating" the zone stop signal
to the discharge zone (Refer to the "Auxiliary Connections" section on pages
6 and 7). This restores power to the tread rollers in Zone #1. Carton
#1 will then move forward, causing a gap between itself and carton
#2 (Figure 6B).
2. When carton #1 clears controller "A," carton #2 will then move
forward, creating a gap between itself and carton #3.
3. This sequence will continue as long as the preceding carton
continues to move forward.
LOADING THE CONVEYOR - SLUG MODE
1. Beginning with the conveyor "empty," and the zone stop signal to
the discharge controller "active," a carton placed on the conveyor
continues forward until it reaches the discharge zone (Zone #1).
2. If two or more cartons are placed on the conveyor witha space
of less than one zone length between them, the cartons will not
singulate (separate) while traveling down the conveyor.
3. When carton #1 activates controller "A," Zone #1 stops driving. A
signal is sent to Zone #2 indicating that Zone #1 is occupied.
4. When carton #2 activates controller "B," Zone #2 stops driving. A
signal is sent to Zone #3 indicating that Zone #2 is occupied.
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