00196962-04-BA-SX12-V2-EN.pdf - 第74页
2 Operational safety User manual SIPLACE SX1/SX2 2.7 Safety features From software version SC 706.1 SP1 Version 10/2014 74 2.7.4 EMERGENCY S TOP loop s and signaling circuit 2.7.4.1 EMERGENCY ST OP loop structure The fol…
User manual SIPLACE SX1/SX2 2 Operational safety
From software version SC 706.1 SP1 Version 10/2014 2.7 Safety features
73
Protective contactor combination K3 (item 1 in fig. 2.7 - 6, page 72) 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 74 )
– 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 72) 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.
2
WARNING
Safety instructions about lethal voltages!
Always follow the safety instructions concerning potentially lethal voltages - even when
the machine is switched off. (See section 2.1.3
from page 34).
2 Operational safety User manual SIPLACE SX1/SX2
2.7 Safety features From software version SC 706.1 SP1 Version 10/2014
74
2.7.4 EMERGENCY STOP loops and signaling circuit
2.7.4.1 EMERGENCY STOP loop structure
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 bumper monitors of the Y axis
– Normally open (NO) contacts for the two EMERGENCY STOP buttons
– Make contact elements for the two component trolleys
– 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 75) 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.
2
Fig. 2.7 - 7 Signal LED on the protective contactor combination
(1) Mains / Power
(2) Kanal 1 / Channel 1
(3) Kanal 2 / Channel 2
2
(1)
(2)
(3)
User manual SIPLACE SX1/SX2 2 Operational safety
From software version SC 706.1 SP1 Version 10/2014 2.7 Safety features
75
2.7.4.2 Signaling circuit structure
The following modules in the signaling circuit are queried individually:
– The protective cover switches
– Bumper monitoring of Y axis
– Signaling contacts on the component trolley
– 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 must be docked in and connected.
– All protective covers must be closed.
– All stopper bumpers for the Y axis must be fitted.
– 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.
– 24V- are made available by the output of the AC/DC converter to the start button and the pro-
tective contactor combination (SSK).
If one of the start buttons is now pressed, the protective contactor combination SSK K3 will switch
and the machine will be ready for operation.