00196504-02_UM_X-Serie_SR70X_EN - 第93页
User manual SIPLACE X-series Operational safety From software version SR.70x.xx 01/2011 EN edi tion Energy state of the machine after switching off at the main power switch 93 The following ta ble specifies the voltages …
Operational safety User manual SIPLACE X-series
Energy state of the machine after switching off at the main power switch From software version SR.70x.xx 01/2011 EN edition
92
2
Fig. 2.9 - 3 Power supply unit, back view
X100 Cable connection terminal for the power supply cable
L20 Discharge reactor with fuses F21, F22 and F23
Z1 Line filter
User manual SIPLACE X-series Operational safety
From software version SR.70x.xx 01/2011 EN edition Energy state of the machine after switching off at the main power switch
93
The following table specifies the voltages of modules when the machine is switched off at the main
switch, but still connected to the mains supply.
2
2.9.2 Machine switched off at the main power switch and disconnected
The machine is unpowered, apart from slight residual voltages in the power supply unit.
Module Voltage
Terminal panel X100
Line filter Z1
Terminals L1, L2, L3
3 x 200 VAC
3 x 208 VAC
3 x 230 VAC
3 x 380 VAC
3 x 400 VAC
3 x 415 VAC
Service socket X102
115 VAC
120 VAC
130 VAC
220 VAC
230 VAC
240 VAC
Automatic circuit breaker F1
115 VAC
120 VAC
130 VAC
220 VAC
230 VAC
240 VAC
Main switch Q1
Terminals L1, L2, L3
3 x 200 VAC
3 x 208 VAC
3 x 230 VAC
3 x 380 VAC
3 x 400 VAC
3 x 415 VAC
Main switch Q1
Terminals T1, T2, T3 0 VAC
Power supply unit
(see item 5 in Fig. 2.7 - 2
, page 86)
Test socket X11
GND X12
Test socket X13_1
Test socket X13_4
GND X13_7
< 10 VDC
< 10 VDC
< 10 VDC
Operational safety User manual SIPLACE X-series
Lock out and tag out procedure From software version SR.70x.xx 01/2011 EN edition
94
2.9.3 Compressed air conditions in the machine after switching off at the main
power switch
When the system is switched off at the main power switch (item 1 in Fig. 2.9 - 1, page 89) or if the
power supply fails, the electrically-controlled main valve Y1 of the compressed air unit closes (item
1 in Fig. 2.8 - 1
, page 88). The pressure will drop to 0 MPa (0 bar) within 5 seconds.
2.10 Lock out and tag out procedure
2.10.1 Purpose and scope
Before performing any preventive maintenance work or service work, a procedure of locking and
tagging must be followed. The procedure, when followed correctly eliminates the possibility of an
employee being injured.
PLEASE NOTE These procedures represent the minimum lock/tag out requirements for the pre-
ventive maintenance or service work. Any additional safeguards needed to complete work safely
can be specified by facilities supervision, the safety officer, the safety committee and the health
department. 2
2.10.2 Description
Whenever it becomes necessary to isolate, control and release energy, the following procedure is
to be followed
→ Notify affected employees.
→ Shut down the equipment. Carry out all normal stopping procedures:
– Press the stop button.
– Shut down the control computer.
– Switch the machine off at the main power switch.
→ Isolate the machine from all its energy sources:
– Shut off the compressed air supply
– Shut off the main power supply
→ Lock out the machine.
– Attach a lock whenever possible, e.g. to the motor contactor.