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User Manual SIPLACE D3 2 Operational safety From software version SR.605.xx 07/2008 EN Edition 2.6 Safety equipment 77 2.6.4.2 Structure of the signaling circuit The signaling contacts in the protec tive switches of prot…

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2 Operational safety User Manual SIPLACE D3
2.6 Safety equipment From software version SR.605.xx 07/2008 EN Edition
76
2.6.4 EMERGENCY STOP loops and signaling circuit
2.6.4.1 Structure of the EMERGENCY STOP loops
The following contacts are connected in series and form the EMERGENCY STOP loop:
– Normally open (NO) contacts for the four protective cover switches
– Normally open (NO) contacts in the two protective switches for the cover flaps over the PCB
conveyor
– Normally open (NO) contacts for the two EMERGENCY STOP buttons
– Normally open (NO) contacts for the feeder module cover flaps (option)
– Normally open (NO) contacts for the four component trolleys
– Channels of the PCC K6 protective contactor combination
With EMERGENCY STOP loop 2, the CAN bus signal from the signaling circuit (see Section
2.6.4.2
) is supplied to channel 2 of the protective contactor combination PCC K6. If the EMER-
GENCY STOP loop is closed, and the signaling circuit is not signaling a malfunction, then the two
green LEDs for channels 1 and 2 light up, in addition to the green mains power check LED of the
protective contactor combination.
2
Fig. 2.6 - 7 Signal LED on the protective contactor combination
(1) Netz / Power
(2) Kanal 1 / Channel 1
(3) Kanal 2 / Channel 2
User Manual SIPLACE D3 2 Operational safety
From software version SR.605.xx 07/2008 EN Edition 2.6 Safety equipment
77
2.6.4.2 Structure of the signaling circuit
The signaling contacts in the protective switches of protective covers, of cover flaps over the PCB
conveyor, of component trolleys and of EMERGENCY STOP buttons are polled individually. All
the signaling contacts are closed when the machine is on standby. If a protective cover, for exam-
ple, is raised, the associated signaling contact opens. This change of state is signaled to the con-
trol computer via the CAN bus. An error message to this effect appears on the user interface.
2.6.4.3 Description of the functions of the EMERGENCY STOP loops
The following conditions must be fulfilled in order to start and operate the machine:
– All four component trolleys must be docked in and connected.
– All protective covers must be closed.
– Both cover flaps over the PCB conveyor must be closed.
– Both EMERGENCY STOP buttons must be released.
– The cover flaps (option) over the feeder modules must be closed.
– The minimum operating pressure must have been reached.
– The "software enable" signal must be active. This ensures that the safety circuit is closed.
– The power supply must be sending 24 VDC to the start buttons and the protective contactor
combination.
– If one of the start buttons is now pressed, the protective contactor combination PCC K6 will
switch and activate the following components:
– 250 VDC link voltage for the servo amplifiers for the gantry axes
– 145 VDC link voltage for the star axes
– The axis unit receives a "Servo enable" signal for the servo amplifiers
– 34 VDC operating voltage is switched to the component trolleys.
– 24 VDC operating voltage is switched to the used tape cutters.
– The PCB conveyor control receives the enable signal for the PCB clamping, the PCB
stopper and the lifting table control.
The machine is then ready for use.
2 Operational safety User Manual SIPLACE D3
2.6 Safety equipment From software version SR.605.xx 07/2008 EN Edition
78
2
Fig. 2.6 - 8 EMERGENCY STOP loops
Start button pressed
No
No
Yes
No
No
Yes
Yes
No
Yes
2
Active
PCC*) No
Voltage
Y axis 0 V
X axis 0 V
Star axis 0 V
DP axis 40 VDC
Z axis 40 VDC
Active
PCB conveyor Yes
Lifting table No
PCB clamp No
Width adjustment No
Laser light barrier No
Used tape cutter No
CO trolley docking unit Yes
2
Active
PCC*) No
Voltage
Y axis 0 V
X axis 0 V
Star axis 0 V
DP axis 40 VDC
Z axis 40 VDC
Active
PCB conveyor No
Lifting table No
PCB clamp No
Width adjustment No
Laser light barrier No
Used tape cutter No
CO trolley docking unit Yes
*) PCC protective contactor combination K6
Yes
Compressed
air min. 0.5 MPa
(5.0 bar)?
EMERGENCY STOP button
pressed?
Protective cover open?
Component trolley
EMERGENCY STOP circuit
interrupted?
Barrier
activated on the user
interface?
2
Active
PCC*) Yes
Voltage
Y axis 250 VDC
X axis 250 VDC
Star axis 145 VDC
DP axis 40 VDC
Z axis 40 VDC
Active
PCB conveyor Yes
Lifting table Yes
PCB clamping Yes
Width adjustment Yes
Laser light barrier Yes
Used tape cutter Yes
CO trolley docking unit Yes