Polifemo Standard User`s Manual
Contents
1. charge batteries POLIFEMO Doc POL S 200 002 E USER MANUAL Version 2 0 MICRO GH GATE Page 10 of 10 3 Battery recharge Blinking 7 hours Batteries removed or reach green dangerous voltage levels faulty batteries 4 End of recharge Continuous and maintenance of green charge level Switching on the photocell or lack of recharge voltage result in interruption of the recharge procedure 6 1 1 IMMEDIATE RECHARGE If immediate battery recharge is required without first discharging the batteries put the switch Figure 2 n 5 to ON for an instant and return rapidly to OFF The recharge management program will not first discharge the batteries steps 3 and 4 Only in exceptional circumstances should the batteries be recharged straightaway without being first discharged as this shortens their life 6 1 2 ANOMALIES Any anomalies occurring during the recharge procedure are signalled by slow blinking of the red LED and the sound signal BOOP pause BOOP When an anomaly is detected the recharge cycle is interrupted POLIFEMO Doc POL S 200 002 E USER MANUAL Version 2 0 MICRO GH GATE Page 11 of 11 7 TECHNICAL DATA Weight Power Power supply batteries ANT NiCd NiMH 1 2V non rechargeable alkaline 1 5V 5V 13V with overvoltage protection output on optoinsulated banana jack photocells2. POLIFEMO USER MANUAL Release 2 0 MICRO GH GATE 8 Via Stradivari 4 Stradivaristr 39100 BOLZANO BOZEN ITALY POLIFEMO Doc POL S 200 002 E Version 2 0 MICRO GH GATE DONE Page 2 of 2 1 SUMMARY I SUMMARY 003 Fastest ag ps hace A Duae eese 2 2 INTRODUCTION 2 ia 3 3 POLIFEMO dt TETUR 4 3 1 CONFIGURATION DIP SWITCHES 6 sce net eterne idiosincrasia 4 4 OPERATING MODES 3 Cin ioter iro RE pdas thee eec ees e iN ad AS Maske iS 5 La CENTERING ecc 5 5 ME QUTRUES AA RA 6 Ml OUTPUT SINAI n rd io 1 2 45 DEAD TIMES ia e a e che A A A R A ISE 8 D POWER SUPPLY iiiter a eh t e endi A pov dA E is 9 0 1 RECHARGE MANAGEMENT ssp tc 9 6 Ll IMMEDIATE RECHARGE iii id 10 611 2 y ANOIMAS A a pH DEED EE 10 Ts TECHNICAL DATA A A as 11 POLIFEMO Doc POL S 200 002 E Version 2 0 MICRO GATE HERMES Page 3 of3 2 INTRODUCTION The new Microgate reflection photocell Polifemo is outstanding for its attractive design conceived to meet the requirements of accident prevention safety norms Its unique optical design guarantees a high range and greater accuracy of measurement In addition special optical and electronic features guarantee maximum reliability also in poor external light conditions Internal power supply is provided by rechargeable batteries the smartly smart recharge circuit is built into the photocell which can be replaced with two normal AA size batteries and which allow 18 hours of autonomous funct
3. behavior of the output depends on the type of output set normal or monostable e normal Interruption of beam Output signal In the above example a dead time T1 has been set the interruption of beam n 1 is correctly ascribed to output signal A subsequently interruption n 2 does not cause any signal as it has occurred within dead time T1 interruption n 3 on the other hand causes output B as it has taken place outside dead time T1 e monostable Interruption of beam 3 100 s Dead Time T1 Output signal POLIFEMO Doc POL S 200 002 E Version 2 0 MICRO GATE pea catia Page 9 of 9 The essential difference compared to the previous example lies in the fact that the dead time period is calculated from the end of the monostable impulse and not from the moment in which the line is emitted 6 POWER SUPPLY The Polifemo photocell can be powered in 3 different ways e with batteries e from recharge power source e from external power source Before continuing it would be better to make clear what the various terms mean e batteries Size AA batteries both rechargeable and non rechargeable types rechargeable both NiCd and NiMH 1 2V non rechargeable Alkaline 1 5V e recharge power source power applied to recharge jack see fig 1 n 6 Voltage must be between 8V and 13V we strongly advise you not to use voltages above 13V for higher voltages a security mechanism varistor breaks the supply circuit The
4. circuit is restored when voltage has returned within the operative range e external power source power supplied to the photocell by means of the 6 pole Amphenol socket fig 1 n 1 Voltage must be between 5V and 13V Also in this case there is a safety mechanism like the one for the recharge power source Polifemo can manage all three types of power supply contemporaneously If the photocell is on and powered from an external power source or from a recharge power source the batteries are protected by using external power sources moreover if recharge power is sufficient the batteries are kept charged by a recharge current with an appropriate duty cycle 6 1 RECHARGE MANAGEMENT Recharging of Polifemo s batteries can only take place with the photocell switched off and is managed intelligently by the microprocessor built into the photocell The standard procedure requires unloading of the batteries and then complete recharging Recharging begins after plugging in a supply jack with a high enough voltage Vch gt 8V with the photocell switched off The steps carried out by the program which manages recharging are as follows STEP ACTIONS LED DURATION POSSIBLE ANOMALIES 1 Checking of Continuous 1 minute Presence of non rechargeable presence of red batteries rechargeable batteries 2 Battery discharge Continuous variable according Batteries removed or reach red to previous state of dangerous voltage levels faulty
5. ioning Its microprocessor management and programming switches also make it a very versatile instrument The Microgate Photocell Polifemo POLIFEMO Doc POL S 200 002 E Version 2 0 MICRO GATE DONE Page 4 of 4 3 POLIFEMO L BATT CHARGE Figure 1 OUT 6 pole Amphenol socket COM Black banana socket OUT2 Green banana socket DIP SWITCHES FOR SELECTING SETTINGS ON OFF SWITCH RECHARGE SOCKET SIGNAL LED BALL JOINT BATTERY COMPARTMENT 0 LENSES 3 1 CONFIGURATION DIP SWITCHES STOP Rr m CONTINUOS DEAD TIME O DEAD TIME 1 Figure 2 POLIFEMO Doc POL S 200 002 E Version 2 0 MICRO GH GATE AA Page 5 of 5 4 OPERATING MODES Depending on requirements the Polifemo photocell can be used in two modes e reflection mode e with facing photocells Switch n 5 determines functioning mode OFF reflection mode ON with facing photocells while switch n 4 determines which is the transmitter and which the receiver when two photocells are used ON Transmitter OFF Receiver e reflection mode SW 5 OFF using a photocell and a reflector The maximum working distance between the photocell and the reflector is about 30 meters O Max 30m MICRO GH GATE e with facing photocells SW_5 ON using one photocell for transmission and one for reception This mode is particularly useful if the photocells have to be positioned at a great distance from each other the maximum dista
6. nce is about 90m MICRO GATE Figure 4 4 1 CENTERING Centering takes place in the following way as soon as it has been switched on the photocell emits a continuous BEEP When the photocell is pointed at the reflector or the photocell which is transmitting in dual mode the BEEP stops thus indicating that correct centering has been attained POLIFEMO Doc POL S 200 002 E Version 2 0 MICRO GH GATE An Page 6 of 6 5 THE OUTPUTS The Polifemo photocell emits an output a signal which is normally open and is brought to the reference level when the infrared beam is interrupted In addition the signal is duplicated both on the 6 pole Amphenol socket OUT1 and on the green banana jack OUT2 e 6 POLE Amphenol socket OUTI This type of connector is the standard Microgate connector and is always structured according to the following convention 6 PNotUsd YA Figure 5 With the DIP SWITCHES 1 2 3 it is possible to select the line on which to send the signal emitted by the photocell ME 1 E 2 a 3 LINE e Banana jack output OUT2 AND COM The OUT2 output is completely uncoupled optoinsulated from the 6 pole output This makes it possible to refer the signal by means of the COM socket BLACK banana jack to any voltage making the photocell compatible with every kind of timing device POLIFEMO Doc POL S 200 002 E Version 2 0 MICRO GH GATE eee eee Page 7 of 7 5 1 OUTPUT SIGNAL The ou
7. tput signal has a minimum duration of 3 hundredths of a second and has a constant delay relative to the event of a thousandth of a second Of course the delay does not affect resolution which for Polifemo is 125us 0 125 milliseconds With switch n 8 it is possible to select two different kinds of output signal behavior e normal SW_8 0FF The output level passes from high to low closing of contact and is kept in this situation until the end of the interruption of the infrared beam AT po Interruption of beam Output signal 1 ms e monostable SW_8 ON The output level passes from high to low and is kept in this situation for 3 hundredths of a second excluding the time during which the infrared beam is interrupted This mode is particularly useful when it is necessary to acquire two or more signals on the same line without the danger of the permanent interruption of one of the photocells e g a photocell not correctly centered blocking the whole line permanently AT e a Interruption of beam Output signal a de POLIFEMO Doc POL S 200 002 E Version 2 0 MICRO GH GATE A Page 8 of 8 5 2 DEAD TIMES By using switches n 6 and 7 it is possible to set dead times In hardware mode periods of time subsequent to an impulse are defined within which no signal is accepted or valid The selections possible are as follows SWITCH6 SWITCH 7 DEAD TIME D MENU NM None Default Also in this case the
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