00196457-05_UM_SX12DX12_SR706_EN.pdf - 第75页

User Manual SIPLACE SX1/SX2/DX1/DX2 2 Operational safety From software version SC.706.xx Version 06/2012 EN 2.7 Safety equipment 75 2.7.4 EMERGENCY STOP loop s and signaling circuit 2.7.4.1 Structure of the EMERGENCY ST …

2 Operational safety User Manual SIPLACE SX1/SX2/DX1/DX2

2.7 Safety equipment From software version SC.706.xx Version 06/2012 EN

Protective contactor combination K3 ( item 1 in fig. 2.7 - 6, page 73) 2

The protective contactor combination is contained in the power supply unit. It is used to monitor

the EMERGENCY STOP circuits and safety equipment.

There are three conditions that must be fulfilled in order to activate the protective contactor com-

bination:

– The "software release" or "Control ON" signal must be issued.

– The EMERGENCY STOP loop must be closed.

– The start button must have been pressed.

The front side of the protective contactor combination has three green LEDs for the operating dis-

play (see fig. 2.7 - 7

, page 75 )

– The "Power" LED indicates that voltage is present.

– The "Channel 1" and "Channel 2" LEDs shine if the start button has been pressed, the EMER-

GENCY STOP circuit is closed and the signaling circuit has not indicated any error states.

Service socket ( item 2 in fig. 2.7 - 6, page 73) 2

The service socket is contained in the power supply unit and is protected by the cover. It can only

be used if the machine is connected to the main power supply via a 5-wire connection (L1, L2, L3,

N, and PE). If a 4-wire connection is used, e.g. without N, the socket cannot be used.

WARNING 2

Always follow the safety instructions concerning potentially lethal voltages - even when the

machine is switched off. (see section 2.1.3 from page 36)

User Manual SIPLACE SX1/SX2/DX1/DX2 2 Operational safety

From software version SC.706.xx Version 06/2012 EN 2.7 Safety equipment

2.7.4 EMERGENCY STOP loops and signaling circuit

2.7.4.1 Structure of the EMERGENCY STOP loops

The following contacts are connected in series and form the EMERGENCY STOP loop:

– Make contact elements for the two protective cover switches

– Make contact elements for the two Y axis bumper monitors (SX1/SX2 only)

– Normally open (NO) contacts for the two EMERGENCY STOP buttons

– Make contact elements for the two component trolleys/DX changeover table

– Channels for the protective contactor combination SSK K3

In the EMERGENCY STOP loop, the CAN bus signal from the signaling circuit (see section

2.7.4.2

, page 76) is fed to the protective contactor combination SSK K3. If the EMERGENCY

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 pro-

tective contactor combination.

Fig. 2.7 - 7 Signal LED on the protective contactor combination

(1) Mains / Power

(2) Kanal 1 / Channel 1

(3) Kanal 2 / Channel 2

(1)

(2)

(3)

2 Operational safety User Manual SIPLACE SX1/SX2/DX1/DX2

2.7 Safety equipment From software version SC.706.xx Version 06/2012 EN

2.7.4.2 Structure of the signaling circuit

The following modules in the signaling circuit are queried individually:

– The protective cover switches

– The Y axis bumper monitors (SX1/SX2 only)

– Signaling contact elements for the two component trolleys/DX changeover table

– EMERGENCY STOP button

All the signaling contacts are closed when the machine is on standby. If a protective cover, for ex-

ample, is raised, the associated signaling contact opens. This change of state is signaled to the

control computer via the CAN bus. An error message to this effect appears on the user interface.

2.7.4.3 Description of the functions of the EMERGENCY STOP loops

The following conditions must be fulfilled in order to start and operate the machine:

– All component trolleys/DX changeover tables must be docked in and connected.

– All protective covers must be closed.

– All Y axis stop bumpers must be fitted (SX1/SX2 only).

– Both emergency stop buttons must be released.

– The minimum operating pressure must have been reached.

– The software release ("Control ON") must be enabled, so that the start signal from the "Start"

button can switch on the SSK protective contactor combination.

– The 24 V AC/DC converter must be sending 24 V to the start buttons and the protective con-

tactor combination.

– If one of the start buttons is now pressed, the protective contactor combination SSK K3 will

switch and activate the following components:

– Intermediate circuit voltage 260 V for the gantry axes via the amplifier module A7.

– 150 VDC intermediate circuit voltage for the star axes

– The Gantry Control Unit (GCU) for the X and Y axes is addressed via the inrush current

limiter servo.

– 42 VDC operating voltage is switched to the used tape cutters.

– 42 V and 24 V are switched through for PCB conveyor control (TSP).

The machine is then ready for use.