U-Line H-2957 User Manual

H-2957

AUTOMATIC STRETCH
WRAP DISPENSER

SYSTEM SPECIFICATIONS

MACHINE DIMENSIONS

Length 116"
Width 65"
Height 92"
Turntable Diameter 65"
Turntable Height from Floor 3 1/4"
Wrapping Height 80"
Operation Space 125 x 70 x 100"
Maximum Load Size 56 x 56 x 80"
Approximate Shipping Weight 1220 lbs

ELECTRICAL SPECIFICATIONS

• 120 VAC, 60 Hz, Single-phase, 15 AMP

• NEMA-12 rated electrical panel

• Operating temperature: +32˚F to +110˚F

• Lockable disconnect switch

• NEC wiring standard

• Programmable Logic Controller (PLC) with input/
output diagnostic lights

TURNTABLE SYSTEM

• Low Profile: ½ HP 3-phase AC motor, ½ HP AC
frequency drive

• 20-30 loads per hour (spiral)

• 12 RPM turntable maximum speed

• 4,000 lbs turntable maximum load capacity

FILM CARRIAGE / ELEVATOR SYSTEM

• ½ HP 3-phase AC motor, ½ HP AC frequency drive

• Adjustable raise and lower speeds

• Automatic height detection photoelectric sensor

FILM DELIVERY SYSTEM

• ¼ HP 3-phase AC motor, ½ HP AC frequency drive

• Adjustable film force

• 200% / 250% average pre-stretch level

• 10" diameter roll capacity

• 20" height roll capacity

CAUTION! Motor control equipment and
electronic controllers are connected to
hazardous line voltages. When servicing
drive and controllers, there may be exposed
components with housings or protrusions at or
above line potential. Extreme care should be
taken to protect against shock.

The user is responsible for conforming to all
applicable code requirements with respect
to grounding all requirements. Do NOT use
extension cords to operate the equipment.

Disconnect AC input power before checking
components, performing maintenance,
cleaning up, and when the machine is not in
use. Do NOT connect or disconnect wires and
connectors while power is applied to circuit.

Wiring work should be carried out only by
qualified personnel. There is a danger of
electric shock or fire.

WARNING! Loose clothing must NOT be worn
while the machine is in operation. Stay clear of
moving parts while the machine is running.

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SYSTEM DESCRIPTION

0"

92" Machine Height

Turntable

Photo Sensor

Motor Cover

Frame

Tower

Control Box

Stretch Selector
Cover

Film Carriage

Foot Security Pan

Auto Film Cut
Solenoid

NOTE: Shown below are STANDARD assembly
drawings. It may not reflect your purchased
system, especially when optional items are
added. Refer to assembly drawings shipped
inside the electrical enclosure for more detail
information.

3.25"

80" Wrapping Height

41"

Turntable Size

65"

101.5"

Machine Length

35.5"

12.5"

8"

1

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SYSTEM SET-UP

MACHINE PLACEMENT

Place the Automatic Stretch Wrap Machine close to
an area where you will be wrapping your pallet loads.
Make sure that there is sufficient room to load/unload
the machine and that you do not stretch the wiring
cable. Remember, you will need to provide electrical
service to a 120 VAC, 15-AMP outlet.

FLOOR WEIGHT BEARING TOLERANCE

The floor must be able to bear the weight of the
machine, the weight of the maximum load, plus a safety
factor. The floor must also be able to tolerate the stress
of the machine’s operation. If the fork trucks will operate
on the same weight bearing area, add the weight
of the trucks to the weight bearing stress tolerance
requirements.

WARNING! The Stretch Wrap Machine must be
anchored securely to the floor, using the type
of anchor recommended for your floor.

MACHINE SET-UP

1. Place skidded machine close to the designated
wrap area. Remove all shipping fasteners holding
the machine to the pallet. The machine may be
crated with the tower tilted down with the motor
cover front carriage roller removed for shipping
purpose.

2. Place forks of the forklift through the tubes provided
at the rear base of the module, remove the machine
from these skids, and place it at the designated
wrap area.

3. If the optional ramp (H-2958) is purchased:
Select a ramp position as illustrated below. The
ramp can be positioned anywhere in a 180° rotation
around the front of the turntable. There should be a
¼" gap between the turntable and the ramp. The
ramp should be fully supported by the floor. Both the
ramp and the machine should be lagged to the floor.

POWER AND SAFETY WIRING CHECKS

1. Using a voltage meter, check the AC voltage
coming to the system to insure proper voltage is
present.

2. Make sure the "E-STOP" button is pressed in. Turn the
disconnect switch to ON position.

3. Pull the "E-STOP" button on the operator panel out.
Power should be applied to the frequency drives,
operating touch-panel, photoelectric sensors,
switches, and LED’s.

4. Press the "E-STOP" button. Make sure all machine
power is completely removed when the "E-STOP" is
depressed. Pull the "E-STOP" button out to resume.

5. Open the film carriage door. Make sure all machine
power is completely removed when the carriage
door is open. Close the film carriage door to resume.

6. Open the electrical control box. Make sure all
machine power is completely removed when the
electrical control box is open. Close the electrical
control box to resume.

7. Trip the carriage foot security bar. Make sure all
machine power is completely removed when the
carriage foot security bar is tripped. Clear the bar to
resume.

PLC'S INPUT MODULE CHECKS

1. Open the electrical control box, and insert the key
latch onto the safety door switch.

2. Depress push buttons and activate selector
switches on the operator panel, check for each
corresponding input lights on the front face of PLC.

3. Block the "Product Height Detection" photoelectric
sensor (located on the film carriage), check for
corresponding input light on the front face of PLC.

4. Trigger magnetic proximity and limit switch sensors,
check each corresponding input lights on the front
face of the PLC.

180˚

¼" Gap

WARNING! Do NOT remove or modify the fixed
upper and lower limit switch stops.

5. Remove the key latch, and close the electrical
control box to resume.

0411 IH-2957PAGE 3 OF 17

PRE-STRETCH ADJUSTMENT

Low-Ratio

High-Ratio

Safety Line

Safety Lock

PRE-STRETCH PERCENTAGE CHANGE

To change the pre-stretch percentage, follow the
procedure below:

1. Turn the main disconnect switch off.

2. Remove the knob cover on the film carriage.

3. Push the safety lock and slide the knob to change
the pre-stretch percentage. Lift the knob for the high
percentage, or lower the knob for low percentage.
Standard percentages are 200% (low) and 250%
(high).

4. To ensure safety and correct operation of the stretch
gears, check the following items:

a) The safety line is back to its home position
following the profile of the knob.

b) The light indicates the selected pre-stretch
percentage.

High Ratio

Low Ratio

Safety Lock

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FREQUENCY DRIVE

An electronic frequency motor drive is a device that
controls the 3-phase AC induction motor’s speed by
varying the frequency of the power sent to the motor.
The Predator Turntable Stretch Wrapper uses Schneider
Electrical Altivar 12 Adjustable Frequency Drives.

ALTIVAR 12 DIGITAL KEYPAD DESCRIPTION

The digital keypad includes the displays panel and
the keypad. The display panel provides the parameter
display and shows the operation status of the AC
drive. The keypad provides programming and control
interface.

DESCRIPTION:

1. Value LED (a) (b)

2. Charge LED

3. Unit LED (c)

4. ESC button: Exits a menu or parameter, or aborts
the displayed value to return to the previous value
in the memory.

5. STOP button: Stops the motor (could be hidden
by door if function disabled). Important: See
instructions for "RUN/STOP" cover removal.

7. Jog dial

- For navigation when turned clockwise or
counterclockwise

- and selection / validation when pushed

8. MODE button

Switches between the control/programming modes.
The MODE button is only accessible with the HMI
door open.

9. CONFIGURATION mode LED (b)

10. MONITORING mode LED

11. REFERENCE mode LED

12. Four "7-segment" displays

(a) If illuminated, indicates that a value is displayed,
for example, 0.5 is displayed for "0.5".

(b) When changing a value the configuration mode
LED and the value LED are on steady.

(c) If illuminated, indicates that a unit is displayed,
for example, AMP is displayed for "Amps".

6. RUN button: Starts running if the function is
configured (could be hidden by door if function
disabled).

0411 IH-2957PAGE 5 OF 17

FREQUENCY DRIVE CONTINUED

MENU STRUCTURE

To access the complete set of drive parameters first
press the wheel to access different modes. Using the

To access the monitoring parameters, press the wheel
on the face of the frequency drive. Using the wheel,
scroll through the list until the display shows Non (Mon)
for monitoring mode. This gives the user access to all the

wheel, scroll to "COnF" and press the wheel again; this
will access different sets of parameters. Using the wheel,
scroll to "FULL" and press the wheel; this will give the user
access to the complete parameter set.

monitoring parameters.

ENT

MONITORING PARAMETERS

CODE NAME/DESCRIPTION UNIT

LFr

rFr

External Reference Value:
External keypad or local force mode configured. Forced local reference FLOC set to LCC and forced local
assignment FLO different to nO. Displays the speed reference coming from the remote keypad. This value is not
visible in factory setting.

Output Frequency:
This function provides the estimated motor speed. It corresponds to the estimated motor frequency (on the motor
shaft). In standard law the output frequency rFr is equal to stator frequency. In performance law the output
frequency rFr motor speed is equal to the estimated motor speed.
Range: -400 to 400 Hz

Hz

Hz

LCr

ULn

CODE NAME/DESCRIPTION

StAt

rdY
rUn
ACC
dEc
dCb
CLl
nSt
Obr
CtL
tUn
FSt
nLP

Motor Current:
Estimation of the effective motor current from phase current measurements with an accuracy of 5%. During DC
injection, the current displayed is the maximum value of current injected in the motor.

Main Voltage:
Line voltage from the point of view of the DC bus, motor running or stopped.

ß Product Status

This parameter shows the state of the drive and motor.

ß Drive ready.
ß Drive running, the last six segments to the right of the code also indicate direction and speed.
ß Acceleration, the last six segments to the right of the code also indicate direction and speed.
ß Deceleration, the last six segments to the right of the code also indicate direction and speed.
ß DC injection braking in progress.
ß Current limit, the four segments located on right down of display are blinking.
ß Freewheel stop control.
ß Auto-adapted deceleration.
ß Controlled stop on mains phase loss.
ß Auto-tuning in progress.
ß Fast stop.
ß No line power. When the control part is energized via the RJ45 connector and there is no power on the main input and

no run order is present.

A

A

0411 IH-2957PAGE 6 OF 17