00195779-0102_UM_D4_SR605_EN.pdf - 第68页
2 Operational safety User manual SIPLACE D4 2.6 Safety equipment From software version SR.605.xx 07/2008 EN Edition 68 Protective contactor combination 3TK2825 (item 1 in Fig. 2.6 - 7 ) 2 The prot ective contactor c ombi…
User manual SIPLACE D4 2 Operational safety
From software version SR.605.xx 07/2008 EN Edition 2.6 Safety equipment
67
2.6.3 Position of protective contactor combination and service socket
2
Fig. 2.6 - 7 Position of protective contactor combination and service socket
(1) Protective contactor combination K1
(2) Fuses FU, FV, FW, FBU
(3) Infeed terminals X100
(4) BU1 service socket
(5) Discharge reactor Z2
(6) Line filter Z1
(7) Main power switch S1
2 Operational safety User manual SIPLACE D4
2.6 Safety equipment From software version SR.605.xx 07/2008 EN Edition
68
Protective contactor combination 3TK2825 (item 1 in Fig. 2.6 - 7) 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 enable" signal must have been sent.
– The EMERGENCY STOP loop must be closed.
– The start button must have been pressed.
On the front panel of the protective contactor combination, there are three green operating display
LEDs (see Fig. 2.6 - 8
, page 69):
– The "Power" LED indicates that voltage is present.
– The "Channel 1" and "Channel 2" LEDs light up if the start button was pressed, the EMER-
GENCY STOP loop is closed and the signaling circuit is not signaling a fault status.
Service socket (item 4 in Fig. 2.6 - 7) 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 (U, V, W,
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 2.6.2.4 from page 64).
User manual SIPLACE D4 2 Operational safety
From software version SR.605.xx 07/2008 EN Edition 2.6 Safety equipment
69
2.6.4 EMERGENCY STOP loop and signaling circuit
2.6.4.1 Structure of the EMERGENCY STOP loop
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 four component trolleys
– normally open (NO) contacts for the four flaps over the pushbuttons for raising the CO tables
– channels 2 and 3 of the protective contactor combination K1
If the EMERGENCY STOP loop is closed, 24 VDC is present at channels 2 and 3 of the PCC.
The two green LEDs for channels 2 and 3 light up in addition to the green Power ON LED.2
2
Fig. 2.6 - 8 Signal LED on the protective contactor combination
(1) Power
(2) Channel 1
(3) Channel 2