– all four flaps over the push-buttons for raising and lowering the component changeover tables must be closed.
– the minimum operating pressure must have been reached.
– the software enable must have been given, thus activating the safety circuit.
– the power supply must be sending 24 V to the Start buttons and the protective contactor com- bination.
– If one of the Start buttons is now pressed, the protective contactor combination (PCC) will switch and activate the following components:
– 24 V operating voltage is switched to the used tape cutters.
The machine is now ready for service.
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– 200 V link voltage for the servo amplifier for the gantry axes – 100 V link voltage for the star axes
– 230 V operating voltage for the lifting table motors
– the servo unit will receive a \ervo enable\ervo amplifier – 34 V operating voltage is switched to the component changeover tables
Student Guide HS-50 / HS-60 Advanced II 3 Power Supply
03/2003 Edition
23
3 Startbutton pressed Compressed air min. 5.0 bar? No Yes Emerg.stop button pressed? No Yes Component table safety circuit interrupted? Yes No No Protective cover open? Yes PCC*) Yes Active Yes Key switch closed (position “I”)? No PCC*) Active No PCC*) Active No y axis x axis star axis dp axis z axis PCB conveyor PCB clamping Width adjustment PCB stopper Lifting table Used tape cutter Voltage 200V 200V 100V 30V 30V Active Yes Yes Yes Yes Yes Yes y axis x axis star axis dp axis z axis PCB conveyor PCB clamping Width adjustment PCB stopper Lifting table Used tape cutter Voltage 0V 0V 6V 30V 30V Active Yes No Yes No No No y axis x axis star axis dp axis z axis PCB conveyor PCB clamping Width adjustment PCB stopper Lifting table Used tape cutter Voltage 0V 0V 6V 30V 30V Active No No No No No No *) PCC Protective contactor combination Fig. 3.2 - 10 HS-50 safety loop 24 03/2003 Edition Student Guide HS-50 / HS-60 Advanced II 3 Power Supply Intput +24V Con component table Key StartStopX7 (Input)pressur sensor +24V CAN-I/O-Modul 1 vey or To be able to start the machine the safety loop must be closed . The safety loop consists of : E-Stops Component protective X3 (Input) X8 (Input)X16 (Input)X9 (Input) Key Start Stopprotective covers X11 (Input) X2 (Output)X1 (Input) X5 (Input)X4 (Input) component flaps flaps covers left side Key Start Stop SZ23 +24V right side Key SZ4 E-stops component tables pressure sensor Start Stop Key Output Conveyor StartStopW ith the safety loop closed two functions are fullfilled : X1 X3 X5 L+ GND SZ23 SZ1 SZ2 SSK X2 X4 X6 X14 Via the SLIO-module 1 and the CAN-Bus all devices are recognized and no error message is sent from the machine controller to the station computer . 24V are also connected to the SSK giving the permission to activate the machine software . Key L- Start Stop SZ3 SZ4 Fig. 3.2 - 11 Safety circuit Student Guide HS-50 / HS-60 Advanced II 3 Power Supply 03/2003 Edition 25 3.2.6 SSK and software release
The placement system cannot be used in placement mode until all the supply voltages have been enabled by the protective circuit. The following conditions must also be fulfilled:
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– All four component change-over tables must be docked.
– All covers must be closed. – Both emergency stop push-buttons must be released. – All four component flaps over the component tables must be closed. – The software enable signal must have been sent. The enable signal is then sent to contactor SZ4 in the power supply unit via port 2 (X2dm) of CAN input/output module 1 in sector 4 of the distribution board (see block diagram \tribution board, sector 4, 00336153-XXXXXXTD3 in the detailed circuit diagrams). 3 3 Fig. 3.2 - 12 Power supply unit - partial front view Contactor SZ4 switches 24 VDC to – L+ on the combined contactor/protective device SSK – the Start button at X4 of the SSK and – the emergency stop loop at X3 and X5 on the SSK. 3 If 24 V is present at L+ on the SSK, the green \ower\D on the SSK will light up. The message \\ returned to the computer via port 1 (X1dm) of the CAN input/output module 1 in sector 4 of the distribution board. If the safety loop is closed (covers closed, emergency stop button not pressed), 24 V is sent to terminals X3 and X5 on the SSK. 3 If one of the Start buttons is pressed, the SSK switches and the green LEDs for channel 1 and channel 2 light up. The five normally open contacts on the SSK switch five independent circuits (see HS-50 power supply, 00336145-010101LD4, in the detailed circuit diagrams): 3 26 03/2003 Edition Student Guide HS-50 / HS-60 Advanced II 3 Power Supply – Normally open contact 13-14 actuates SZ2, SZ3 and SZ 23.
SZ2 and SZ3 switch through the 200 VDC and 100 VDC link circuit voltages for the servo amplifiers of the x, y and star axes. SZ23 switches the current limitation.
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– Electronic load disconnecting relay ELR1 switches the 3 x 230 VAC operating voltage for
lifting tables 1 and 2 of conveyor 1,
– The optional relay ELR2 switches through the voltage for lifting tables 3 and 4 of conveyor 2. – An auxiliary contact on contactor SZ23 sends a 24 V signal in the form of an \ontroller ON\sage to CAN input/output module 1 (X1dm) and in the form of a \ervoEnable\message to the servo unit. – Normally open contact 23-24 switches the 40 VDC operating voltage to the component ta- bles. – Normally open contact 33-34 switches through the 24 VDC operating voltage to the used tape cutter. – Normally open contacts 43-44 and 53-54 are provided for the safety loops of external mod- ules. Intput +24V Con Key StartStopX7 (Input) pressur sensor +24V CAN-I/O-Modul 1 or component table vey X3 (Input) X8 (Input)X16 (Input)protective covers W ith the safety circuit closed the machine is ready to be activated by the START key. Pressing one of the START keys connects +24V to SLIO-Port X7 and to the still open contact on contactor SZ4 Recognising the START- Key being pressed the machine controller sets via the CAN-Bus the Ctrl _ON signal on port X2 energizing contactor SZ4. Key Start StopX11 (Input)X2 (Output)X1 (Input)X9 (Input)X5 (Input) Key component flaps le f t si dStarte SZ23 X4 (Input) +24V SZ4 E-stops Stop right side Key Start Stop SZ4 energized the following will happen: +24V from safety loop are connected to X3 and X5 of the SSK L+ Output Con vey or Key X1 X3 X5 SSK Key Start Stop Start Stop L- GND SZ23 SZ1 X2 X4 X6 SZ2 SZ3 SZ4 X14 L+ gets 24V connected to, contactor k1 of the SSK ( internal ) latches and the first green LED lights up. Internally connected to L+, X1 feeds back the READY signal to the machine controller via port X1 of the SLIO module 1. W ith +24V now also on X4 of the SSK k2 and k3 (internal ) latches and output X14 drives +24V energizing SZ2, SZ3 and by a small delay SZ23. W ith SZ2, SZ3 and SZ23 energized the +24V on input X4 is pulled back and the Control _ON signal (+24V) is set , indicating the main contactor is closed . The machine is now ready for reference . Fig. 3.2 - 13 SSK and software release Student Guide HS-50 / HS-60 Advanced II 3 Power Supply 03/2003 Edition 27