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Summary of Contents for RoboLabs Mini Robopop 25
- Page 1 Popcorn machine VPM-MRS2FUS Instruction manual Original instructions. Read this document before use and keep it for future reference. PDF version is available on www.robolabs.pro...
- Page 2 Содержание 1 Safety requirements.......................... .3 2 General information...........................4 2.1 Designation..........................4 2.2 Technical specifications......................4 2.3 Delivery set..........................4 2.4 Packing............................4 2.5 Transporting and storage......................4 2.6 Design and principle of operation....................5 2.7 Modes of operation........................7 2.7.1 Heating mode........................7 2.7.2 Popping stage........................
- Page 3 This document (hereinafter — the manual) contains essential information on installation, intended use, and technical maintenance of popcorn machine VPM-MRS2FUS (hereinafter — the machine). The manual is intended for operators who work with the machine, and for technical personnel who conduct installation, commissioning, and technical service. The manual must be kept during all life time of the machine in place readily available for operators, and technical personnel.
- Page 4 Safety requirements This is the safety alert symbol. It is used to alert you to potential physical injury hazards. Obey all safety messages that follow this symbol to avoid possible injury or death. • НNot grounded machine can cause electric shock. Power outlet MUST HAVE proper grounding to avoid electric shock.
- Page 5 General information Designation Popcorn machine VPM-MRS2FUS (hereinafter — the machine) is intended to make popcorn. Commercial use only. Technical specifications Throughput Up to 12 kg/h Rated voltage 230 V Rated frequency 50 Hz Rated current 25 A Net dimensiona (LxWxH) 1075x590x1610 mm Net weight 150 kg Design life...
- Page 6 Design and principle of operation Main components of the machine are shown on Fig. 1. Motor with turbein (11) causes air circulation inside the machine. Air goes from the turbine to working chamber (9), and then to heating elements area (12), where it is heated, and then returns back to the turbine.
- Page 7 Chamber inside is shown on Fig. 3. There is a bowl (1) that has many holes of special shape. Air flow from turbine goes from below and, due to that holes, creates air vortex inside the chamber (shown by arrow). Corn kernels come into the chamber from the supply tube (2).
- Page 8 Modes of operation Whenever the machine is turned on, it is in one of the following modes of operation. 2.7.1 Heating mode Once turned on, the machine begins to operate in heating mode. After set value of temperature is reached, the machine autmatically switched to popping mode. 2.7.2 Popping stage This is the main operation mode.
- Page 9 Commissioning Not grounded machine can cause electric shock. Power outlet MUST HAVE proper grounding • to avoid electric shock. • Wall receptacle MUST be installed by a qualified electrician. If supply cord damaged, it MUST be replaced by manufacturer, service agent, or a skilled •...
- Page 10 Electric requirements The machine requires single phase 230 V 50 Hz three-wire system (L-N-GND). Use 2P+PE 32 A 250 V pin and sleeve connector (IEC 60309). Connecting to the mains must be arranged in conformity with all requirements applicable in the country of use at the moment of commissioning.
- Page 11 Intended use DO NOT use machine if supply cord, cable plug, or wall receptacle are damaged. • • DO NOT allow supply cord to be twisted, bent, pulled, contacted with sharp edges, or to be mechanically impacted in any other way. DO NOT let supply cord to be in contact with hot surfaces.
- Page 12 this, press and hold COOLING/TURN OFF push button for more than 3 seconds. Repeat if necessary. To resume operation, press START/PAUSE push button. 7. To stop operation for short time (without cooling down the machine) press START/PAUSE push button, so to activate pause mode. Current batch is finished, and START/PAUSE signal lamp is blinking.
- Page 13 When popping Mushroom corn, there is always some amount of corn that pop in Butterfly-ish shape. It is recommended to start with 195 °C temperature set value, and then gradually increase the value, by 5 degree steps. Compare the results obtained at different temperatures, and then choose the value for which popped popcorn volume and shape is best.
- Page 14 Chamber clogging • NEVER use water in case of smoke formation. • DO NOT open in case of smoke formation. DO NOT use fire extinguishers. Machine is made of stainless steel, as long as chamber is • closed, popcorn won’t get fire. The chamber may be clogged due to the following reasons: •...
- Page 15 Cleaning ALWAYS unplug before cleaning. • • DO NOT use excessive water or water jet for machine cleaning. DO NOT spill water on electric panels or parts. Using excessive water during cleaning can cause short circuit and electric shock. • DO NOT immerse machine and/or supply cord into water. •...
- Page 16 Weekly cleaning 1. Remove three wing-screws (Fig. 2, pos. 1) and take off corn bin by pulling this towards you, while standing in front of controls. 2. Wash the corn bin to remove dust and let it dry. 3. Clean auger with dampened paper towel. 4.
- Page 17 Technical service ALWAYS unplug while servicing. • • Technical maintenance and repair MUST be conducted by a qualified technician only. • A warning tag (DO NOT TURN ON! WORK IN PROGRESS!) must be placed at the switchboard during servicing. Internal surfaces are hot. Touching hot surfaces might cause burn. ALWAYS wait until cooled •...
- Page 18 6.1.1 Technical maintenance Stage 1 schedule 1. Ask the operators who work with the machine for any issues related to the machine and its operation. 2. Ensure that the machine is installed in accordance with the installation instructions (see section 3). 3.
- Page 19 Figure 5 7. Check door seal (5). Replace worn out seal. 8. Open junction box of turbine motor M1. Check connections. Restore connection, face up pitted contacts, tighten loosen contacts. Check the motor. Its rotor should spin freely. Make sure that there is no open or short circuit, nor ground fault in its windings. Resistance of each winding must be about the same.
- Page 20 Lamp replacing 1. Unplug the machine. Wait until cools down. 2. Open the chamber. Lamp EL is located in the ceiling part the chamber, see Fig. 6. 3. Removes four bolts (1) that hold protective cover (2), and then take the cover off. If the cover ‘glued’...
- Page 21 Electric components designations Electric components designations is shown on Fig. 7. The component designations corresponds to the same on the wiring diagram. Figure 7...
- Page 22 VFD unit High voltage remains in capacitors in the output circuit of the VFD unit. • WAIT AT LEAST 10 MINUTES after VFD unit is de-energized, and then confirm that the • capacitors have fully discharged by measuring the voltage between braking module terminals ;...
- Page 23 Table 1: VFD unit settings Parameter Value Description 00.02 9 Parameter reset 00.03 0 Start-up display selection 01.00 60.00 Maximum output frequency 01.09 15.0 Accel time 1 01.10 15.0 Decel time 1 01.16 4 Auto acceleration/deceleration 02.00 3 Source of first master frequency command 02.01 4 Source of first operation command 02.04...
- Page 24 Stepper driver • Changing driver’s settings while it is energized might damage the driver. ALWAYS turn off the machine before changing the driver settings. Stepper driver DD drives the motor M2 that actuates corn auger. Driver appearance and its terminals layout are shown on Fig. 9. Current-limiting resistor R is spliced into the the wire coming to the “PUL-”...
- Page 25 Thermal cut-out Thermal cut-out DC2 (hereinafter — unit) connected to a sensor BT, located in the working chamber. Output of the unit drives the solid-state relay VS that feeds the heating elements EK1,EK2. Once machine turned on, the unit is in run mode; upper line of the display reads temperature in the chamber.
- Page 26 Thermal cut-out Thermal cut-out (3) AT is of capillary type, located in electric panel, see Fig. 10. There is a release pin (2). Its sensing element (bulb) is located in heating element area. The bulb is connected to the cut-out with capillary tube (1). Thermal cut-out is included in the circuit of contactor KM1 coil.
- Page 27 Troubleshooting Trouble Possible reason Remedy The machine doesn’t turn on. 1. Machine is not plugged in. Plug the machine in. 2. Emergency stop SA switch Turn the switch actuator clockwise is actuated. to release. 3. Circuit breaker QF in OFF Set the circuit breaker’s lever to ON position.
- Page 28 Trouble Possible reason Remedy 10. Open circuit. Check continuity between: Thermostat DC2; • • Contactor KM2. Restore connection, face up pitted contacts, tighten loosen contacts. After turning machine on, 11. Power supply unit PSU Check power supply unit. While thermostat is on, but turbine fault.
- Page 29 Trouble Possible reason Remedy 20. Heating element EK1, EK2 Check heating elements with a fault. tester. There should be no open or close circuit, nor ground fault. Resistance should be around 21 Ohm for each element at room temperature. Replace fault elements. While replacing, use electro-conductive anti-seize paste.
- Page 30 Trouble Possible reason Remedy 27. Open circuit. Check continuity between: Heating elements EK1, EK2; • • Contactor KM1; Solid-state relay VS; • Relay K2; • • Thermostat DC2; Thermal cut-out AT; • Restore connection, face up pitted contacts, tighten loosen contacts. Incorrect temperatrue readings on 28.
- Page 31 Trouble Possible reason Remedy 36. Relay K3, K4 fault. Check relay operation. When control voltage is applied to terminals (A1+) and (A2-), contacts (11) and (14) must be closed; contacts (11) and (12) must be open, and vice versa if no control voltage applied.
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