Leister UNIDRIVE 500 User manual

®
UNIDRIVE
500
Leister Technologies AG
Galileo-Strasse 10
CH-6056 Kaegiswil, Switzerland
Tel. [phone]
Fax [phone]
www.leister.com
[e-mail]
English

2
Contents
1. Application 3
1.1 Intended use 3
1.2 Improper use 3
2. Technical data 3
3. Transport 4
4. Your UNIDRIVE 500 5
4.1 Type plate and identification 5
4.2 Scope of delivery 5
4.3 Overview of device parts 6
5. Settings on the UNIDRIVE 500 7
5.1 Adjusting the Welding Nozzle 7
5.2 Retooling for dierent welding widths 8
6. Commissioning your UNIDRIVE 500 9
6.1 Work environment and safety 9
6.2 Operating readiness 10
6.3 Positioning the device 10
6.4 Starting the device 11
6.5 Welding sequence 12
6.6 Switching o the device / Maintenance 12
7. Quick Guide UNIDRIVE 500 13
7.1 Switching on/Starting 13
7.2 Switching o 13
8. Operating unit UNIDRIVE 500 13
8.1 Function keys 13
8.2 Display 14
8.3 Display symbols of the status display (Display 20) 15
8.4 Display symbols for the welding speed (Display 21) 15
8.5 Display symbols for the welding temperature (Display 22) 15
8.6 Display symbols for the air volume (Display 23) 15
8.7 Status LED display 15
9. Settings and functions of the UNIDRIVE 500 software 16
9.1 Setting the parameter units 16
9.2 Setting the welding parameters 16
9.3 Cool down mode 17
9.4 Monitoring welding parameters during runtime 17
9.5 Switch drive direction 17
10. Warning and error messages UNIDRIVE 500 18
11. FAQ, causes and measures UNIDRIVE 500 19
12. Declaration of Conformity 20

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UNIDRIVE 500
100 V UNIDRIVE 500 100 - 120 V UNIDRIVE 500 220 – 240 V
V~ 100 120 230
Hz 50 / 60 50 / 60 50 / 60
W1500 1800 2200
°C
°F 100 – 580 220 – 1076
%45 – 100
m/min
ft/min 0,7 - 4,5 2.3 – 14.8
LpA (dB) 70 (K = 3 dB)
m/s²
ft/s² < 2.5 (K = 1.5) < 8.2 (K = 4.9)
kg
lbs 4.5 9.9
a
b c
a) mm / inch 297 / 11.7
b) mm / inch 173 / 6.8
c) mm / inch 275 / 10.8
UNIDRIVE 500
Industrial hot-air tool
We recommend that you always keep the operating instructions with the device.
Congratulations on your purchase of the UNIDRIVE 500.
You have chosen a first-class semi-automatic hot-air welder.
It was developed and produced in accordance with the latest state-of-the-art technology in the plastics-proces-
sing industry.
It has also been manufactured using high-quality materials.
For further information on the UNIDRIVE 500, visit www.leister.com
The UNIDRIVE 500 is intended for professional use on flat and sloping roofs, certain geosynthetic applications,
and the swimming pool market.
Welding processes and types of materials
• Overlap welding of thermoplastic/elastomer membranes (such as TPO/FPO, PVC, ECB, modified EPDM, EVA,
PIB, PMI, PO, PP)
• Overlap welding for base seams
• Close-edge welding on roof and cross-seam parapets and eaves up to 60 mm
• Welding on roof parapets and eaves
• Welding widths: 15, 30 and 40 mm
• Swimming pool models
• Waterstops for below-grade concrete applications
• Circumferential welds
Any other use of the UNIDRIVE 500 or any use beyond the type of use described is deemed improper use.
We reserve the right to make technical changes at any time without prior notice.
1. Application
1.1 Intended use
1.2 Improper use
2. Technical data

4
4
Comply with applicable national statutes regarding the carrying or lifting of loads.
The weight of your UNIDRIVE 500 including the transport box is 7.5 kg (4.5 kg without trans-
port box).
Transport the semi-automatic hot air welder only with the transport box included with the
delivery (see scope of delivery 5 [4.2]) and carry the transport box by the handle provided.
The hot-air blowers (6) MUST be allowed to cool down prior to transport.
Never store flammable materials (such as plastic, wood, or paper) in the trans-
port box.
Never use the carrying handle (4) on the device or on the transport box for
transporting with a crane.
To manually raise the semi-automatic hot air welder, use the carrying handle
(4).
3. Transport

5
Example:
The model and serial number are indicated on your device's type plate (12).
Please enter this information in your operating instructions and always reference it when addressing queries
to our representatives or authorized Leister Service Centers.
Model:..............................................................................................................................................................
Serial no.:.........................................................................................................................................................
Standard equipment in the case:
• 1 x UNIDRIVE 500 drive
• 1 x wire brush
• 1 x hexagon wrench key, size 3
• 1 x quick guide
• 1 x safety instructions
4. Your UNIDRIVE 500
4.1 Type plate and identification
4.2 Scope of delivery

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7
12
10
6
1
11
2
6
7
8
4 5
10 9
3
4.3 Overview of device parts
1. Power cord
2. Housing
3. Operating unit
4. Carrying handle, top
5. Handle, side
6. Hot-air blower
7. Drive/pressure roller
8. Welding nozzle 15-40 mm
9. Drive and pressure belt
10. Undercarriage
11. Height adjustment
12. Type plate with model designation and series marking

7
AA
Set welding direction and angle
The direction of the arrow on the welding nozzle (8) defines the welding direction.
Align the welding nozzle (8) parallel to the drive/pressure roller (7).
Set distance A(2 hexagon socket screws)
A = 1 – 2 mm
Hexagon socket screw
2 hexagon socket screw
5. Settings on the UNIDRIVE 500
5.1 Adjusting the Welding Nozzle

8
7
8
5.2 Retooling for different welding widths
To retool to a dierent welding width, proceed in accordance with the sequence described below.
Allow the device to cool down in Cool Down mode.
Before beginning with dismantling work, make sure that the power cord (1) is disconnected from the
mains.
1. Release the cheese head screws M5 × 30 on the two drive/pressure rollers (7) (screw length varies depending
on roller type).
2. Remove the drive/pressure rollers (7).
3. Mount the new drive/pressure rollers (7).
4. Retighten the new M5 cheese head screws.
5. Release the hexagon socket screw.
6. Remove the welding nozzle (8) that is currently mounted.
7. Insert the desired welding nozzle (8).
8. Adjust the welding nozzle (8) (see Adjust welding nozzles 7 [5.1]).
9. Retighten the hexagon socket screw.
Step 1: Safety precautions
Step 2: Adjusting the roller width (analogous to the 15, 30, or 40 mm welding nozzle)
Step 3: Changing the welding nozzle (15, 30 or 40 mm)
Cheese head screw M5
Hexagon socket screw

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6. Commissioning your UNIDRIVE 500
6.1 Work environment and safety
The semi-automatic hot-air welder must only be used in the open or in a well-ventilated area.
In addition, comply with national statutory requirements regarding occupational safety (securing
personnel or devices).
Use the device only on a fireproof surface.
Read the material safety data sheet of the manufacturer of the material and follow that company's
instructions. Be careful not to burn the material during the welding process.
Never use the semi-automatic hot-air welder in explosive or readily inflammable surroundings and
maintain sucient distance from combustible materials or explosive gases at all times.
Anti-fall protection when working on areas where there is a danger of falling.
When welding on roof parapet (parapet, eaves), the semi-automatic hot-air welder must be
secured to an anchor point using the carrying handle (4) and a safety line (e.g. rail or rope
safety systems) as protection against falling.
With respect to the safety chain, care must be taken to ensure that all of the safety elements (carabiner
hooks, ropes) have a minimum load-carrying capacity of 7 kN in every anticipatable direction. For the
suspension of the machine, it is mandatory to use clasp carabiners (Twist-Lock or screw types). All sa-
fety chain connections must be installed and checked in accordance with manufacturer specifications.
Before each use and after any unusual occurrences, the carrying handle (4) that is used for fastening
the safety rope must be inspected by an individual with expertise in this area. The carrying handle (4)
is not permitted to exhibit any cracks, corrosion, notches or other material faults.
Caution: Secure the semi-automatic hot air welder with the carrying handle (4)only!
Caution: The semi-automatic hot-air welder must never be fastened to single anchoring points which
allow ropes to sag. The connection equipment must always be set to the shortest length possible in
order to eliminate the chance of falling over the edge of the parapet.
Step 1: Safety precautions

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8
7
Check the basic setting of the welding nozzle (8).
• Check whether the material to be welded is clean between the overlap and on the upper and lower sides.
• Then check whether the welding nozzle (8), the drive/pressure roller (7), and the pressure belt (9) are
clean.
• If necessary, position the optionally available welding plate (see Scope of delivery 5 [4.2]).
Caution: The device may fall or drop in an uncontrolled manner due to gravity. The securing point is not designed
to withstand the shock-like stress of an abrupt fall.
Contact the manufacturer without hesitation if uncertainties arise during installation or operation.
Power cord and extension cable
• The nominal voltage specified on the device (see Technical data 3 [2]) must match the mains voltage.
• The power cord (1) must be able to move freely and must not hinder the user or third parties during work
(danger of tripping).
• The extension cable must be authorized for outdoor use and be marked accordingly. Take into account the
necessary minimum cross-section/gauge for extension cables, as required.
Generators for power supply
When using generators as a power supply, please ensure that the generators are grounded and equipped with
residual-current circuit breakers.
When selecting the nominal output of the generators, the formula «1.5 – 2 × nominal output of the semi-automa-
tic hot-air welder» applies.
Welding plate (available as an option)
6.2 Operating readiness
6.3 Positioning the device

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• Once you have prepared the working area and the semi-automatic hot-air welder in accordance with the
description, connect the device to the mains voltage.
• Now switch on the heating ("Heating on/o" key, 16).
After connection, the start screen appears briefly on the display of the operating unit (3)
with the version number of the current software release and the device designation.
If the device was allowed to cool down beforehand, this will be followed by a static display
of the setpoints for the most recently set welding parameters.
At this stage, the heating, blower and drive are switched o.
Tool resting position
• Place the semi-automatic hot-air welder on a horizontal and fireproof surface.
• The semi-automatic hot-air welder is placed on its back for the resting position (heating, cool down mode).
6.4 Starting the device

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• The drive motor starts automatically as soon as the heating is activated.
• Check whether the correct drive direction (left or right) is set and compare it with the direction on the nozzle to
match the arrow so that it matches the arrow on the display (see Switch drive direction 17 [9.5]).
• Make sure that the welding temperature has been reached before commencing work (the heating-up time is
–three to five minutes).
• Now carry out test welds in accordance with the welding instructions of the material manufacturer and/or natio-
nal standards or regulations and inspect the results. Adjust the welding profile as needed.
Commencing welding
• Insert the welding nozzle (8) between the overlapped sheets.
During the welding process
• Guide the semi-automatic hot-air welder by the handles on the side (5) or by the carrying handle (4) along
the overlap and also observe the position of the drive / pressure rollers (7).
• The welding speed, air volume, and air temperature can be adjusted at any time during welding
(see Setting welding parameters 16 [9.2]).
Finishing welding
• After the welding, move the semi-automatic hot-air welder out of the overlapping sheets.
Switch o the heating with the Heating on/o key (16).
Do not touch moving parts
There is a risk of inadvertently becoming caught and being pulled in. Do not wear articles of clothing
such as scarves or shawls. Tie up long hair or protect it by wearing headgear.
Preparing for welding
As soon as you have switched on the heating, you will see a dynamic display of the cur-
rent air temperature (setpoint and actual value). All welding parameters (welding speed,
temperature and air volume) can be set.
6.5 Welding sequence
6.6 Switching off the device / Maintenance

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• The device switches to cool down mode.
• The blower switches o automatically after approx. six minutes.
• Then disconnect the power cord (1)from the mains.
• Wait until the device has cooled down.
• Check the power cord (1) and plug for electrical and/or mechanical damage.
• Clean the welding nozzle (8) with a wire brush (available as an option).
1. Connect the mains voltage plug
2. Set the welding parameters
3. Switch on the heating with the Heating On/O key (16); wait three to
five minutes until the desired temperature is reached
4. If necessary, adjust the direction of rotation of the drive (15 + 17)
5. Slide the welding nozzle (8) into the overlap
1. Remove the semi-automatic hot-air welder
2. Switch o the heating using the Heating on/o key (16)
3. Wait for end of cool-down process (approx. six minutes)
4. Pull out mains voltage plug
The operating unit (3) consists of the function keys with which you can activate and/or deactivate the drive or
heating, the Confirm key for selecting the setpoints to be configured, as well as the display on which the current-
ly selected setting is displayed.
15 "Drive on/o" key
16 "Heating on/o" key
17 Minus/Plus keys
18 "Confirm" key
7. Quick Guide UNIDRIVE 500
17
18
17
16
15
7.1 Switching on/Starting
7.2 Switching off
8. Operating unit UNIDRIVE 500
8.1 Function keys

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The display is subdivided into four areas:
8.2 Display
21 Displays welding speed in m/min or ft/min (drive direc-
tion)
22 Displays welding temperature in °C or °F
23 Displays air volume in %
20 Status display
During operation, the setpoints of the welding parameters (drive in m/min or ft/min, temperature in degrees
Celsius or Fahrenheit), air volume in percent and, if applicable, information notes are displayed.
You can use the "Confirm" key (18) to switch between the welding parameters. Use the Minus/Plus arrow
keys (17) to adjust the values individually.
Symbol Designation Function
"Motor
On/O (15) Switches drive on and o
Heating key
On/O (16) Switches heating on and o
Blower symbol No function
Minus / Plus keys (17) Setting the required setpoint in
increments of 0.1m/min, 10 °C or 5%
"Confirm"
key (18) Switches between the setpoints to be set

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8.3 Display symbols of the status display (Display 20)
Symbol Meaning
Symbol for cool down mode
Symbol for warning note, warning message or error message causing the device
to cool down.
(see also Warning and error messages 18 [10])
Indicates service required.
Symbol for hardware error message.
The device is no longer ready for operation. Contact an authorized Leister Service
Center.
(Note the respective error code in Chapter Warning and error messages 18 [10]).
Actual and setpoint value of the welding speed
The arrow in the display for the welding speed indicates the drive direction.
Actual and setpoint value of the air volume
Welding temperature too low, heat-up process.
Up arrow shows that the desired higher temperature has not yet been reached.
The flashing number designates the currently achieved actual value (430); the value below
(450) shows the setpoint of the individual setting.
Welding temperature too high, cool-down process.
Down arrow shows that the desired lower temperature has not yet been reached.
The flashing value designates the currently achieved actual value (470); the value below
(450) shows the setpoint of the individual setting.
8.4 Display symbols for the welding speed (Display 21)
8.5 Display symbols for the welding temperature (Display 22)
Heating
The LED on the Heating "On/O" key (16) displays the condition of the heating.
LED status
Heating On/O (16) Condition
LED o Heating is switched o.
LED flashes green Heating is switched on. Temperature is outside the tolerance.
LED continuously green Heating is switched on. Temperature is inside the tolerance.
8.6 Display symbols for the air volume (Display 23)
8.7 Status LED display

16
Heating and drive
If the two LEDs for the Heating «On/O» (16) key and the Drive «On/O» (15) key flash simultaneously, an
error is pending (see Chapter Error messages).
9. Settings and functions of the UNIDRIVE 500 software
• Hold down the Drive "On/O" (15) and Heating "On/O" (16) keys and connect the
power cord to the mains. "UNIT" then appears on the display.
• Press the Confirm key (18) to confirm and set the desired units using the Plus/Minus
keys (17).
• Press the "Confirm" key (18) to confirm and use the Minus/Plus keys (17) to select
"SAVE". Press the Confirm key (18) to confirm; the units are then saved.
The device then restarts automatically.
The units for the welding speed and for the temperature can be adjusted.
Temperature: °C or °F
Speed: m
min or ft. min
You can regulate the setpoints of the three welding parameters individually, even during operation.
During operation, the selected range switches automatically after 5 seconds back to the welding speed (21) row.
Select:
Select the desired setpoint for drive, temperature or air with the "Confirm" key (18).
Presentation:
The selected range is indicated by a bar on the left side of the LED display.
Settings:
Use the Minus/Plus keys (17)to adjust the selected setpoint to match your require-
ments.
Proceed as follows:
9.1 Setting the parameter units
9.2 Setting the welding parameters
Drive
LED status
Heating On/O (15) Condition
LED o Drive is switched o
LED continuously green Drive is switched on
The LED on the Drive "On/O" key (15) displays the condition of the drive.

17
The heating is switched o during the cool-down process. The setpoints cannot be changed during the cool-down
process.
If the air temperature is more than 100°C when the device is switched on, the device switches automatically to
cool down mode.
The cool-down process is finished when the air temperature is less than 100°C for two minutes.
If the heating is to be switched back on, press the relevant key (16).
Welding speed, air temperature and air volume are monitored on an ongoing basis with the closed-loop techno-
logy.
If an actual value deviates from the setpoint according to the individual settings, this is indicated in the working
display (see Display symbols for the welding temperature 15 [8.5]).
Hold down the Drive "On/O" key (15) and the Minus or Plus key (17) for three seconds.
• Minus key clockwise
• Plus key counterclockwise
The direction of the arrow changes in the Welding speed display (21).
See Quick Guide UNIDRIVE 500 13 [7]
9.3 Cool down mode
9.4 Monitoring welding parameters during runtime
9.5 Switch drive direction

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10. Warning and error messages UNIDRIVE 500
Error messages are shown on the display of the operating unit (3)
If an error message appears, you cannot continue working.
The heating is switched o automatically and the drive is blocked. The corresponding error codes are displayed
immediately on the display of the operating unit (3). The first four digits indicate the error group. The second
four digits indicate the detailed error. Contact an authorized Leister Service Center.
Example:
Error group Description Measures
0001 Electronics temperature measu-
rement
Temperature > 90 °C. Allow the device to cool
down
0004 Supply voltage
Connect the device to a dierent power socket.
If the error is still displayed, contact the Leister
Service Center.
0008 Thermocouple/heating element Contact Leister Service Center
0100 Blower motor Contact Leister Service Center
0400 Drive motor Contact Leister Service Center

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11. FAQ, causes and measures UNIDRIVE 500
The machine switches on automatically after the blowers have been switched on:
• If the air temperature is more than 100°C when the device is switched on, the device switches automatically
to cool down mode. The cool-down process is finished when the air temperature is less than 100 °C for two
minutes.
Deficient welding result quality:
• Check drive speed, welding temperature and air volume. Check the material manufacturer's installation
instructions
• Clean welding nozzle (8) with wire brush.
• Welding nozzle (8) incorrectly adjusted (see Adjust welding nozzles).
• Incorrect drive direction
• Pressure not sucient and incorrectly applied
After five minutes at the most, the set welding temperature has still not been reached:
• Inspect supply voltage.
• Reduce air volume.

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EC declaration of conformity
(in terms of the EC machinery directive 2006/42
/EC; Appendix II A)
Leister Technologies AG
Galileo
-Strasse 10, CH-6056 Kaegiswil/Switzerland
hereby declares the machine described below, released by us, fulfills the provisions of the
following EC directive(s):
Designation
Hot Air Welder
Type
Unidrive 500
EC directive(s)
2006/42/EC (Machinery Directive)
2014/30/EU (EMC Directive)
2014/35/EU (Low Voltage Directive)
2011/65/EU (RoHS Directive)
Harmonised standards
EN ISO12100: 2010
EN 55014-1:2006 + A1:2009 + A2:2011
EN 55014-2:2015
EN 61000-3-2: 2014
EN 61000-3-3: 2013
EN 62233: 2008
EN 60335-1: 2012 + A11: 2014 + A13:2017
EN 60335-2-45: 2002 + A1:2008+ A2: 2012
EN 50581:2012
Authorised documentation representative
Thomas Schäfer, Manager Product Conformity
Kaegiswil,
15.04.2019
…………………………………
…………………………………
Bruno von Wyl
Christoph Baumgartner
(Chief Technical Officer)
(General Manager)
12. Declaration of Conformity