OperationInstruction_Vsision XP - 第31页
Vision XP+ V AC Page 23 2 Operating Safety 2.9 Safety Device s Operating Instructions V ersion 1.5 2.9.2 Sa fety Precautions for Closing Hoods and Proce ss Cham- ber In order to e liminate any risk of i njury when closin…
Page 22 Vision XP+ VAC
2 Operating Safety
2.9 Safety Devices
Operating Instructions
Version 1.5
2.9 Safety Devices
2.9.1 Overview of important safety devices
• Indicator lamp with acoustic signal on top of the system.
• Electric master switch on the control cabinet.
• Pneumatic maintenance unit with main valve for cutting off the pneumatic
energy supply, with bleed valve and with manometer for adjusting the op-
erating pressure.
• EMERGENCY STOP buttons.
• Lockable control cabinet doors and doors on the system.
• After being removed, the collection tray must be refitted and screwed back
into place.
• Access restriction with password protection on the screen (with graduated
security levels).
• Key switch (optional) on the operator console for switching from Automatic
to Service mode.
• Flow meter on the outlet air extractor (as standard).
• Earthing cables on all doors and other installation parts prevent sparks
due to electrostatic discharge inside the system.
• Electrical fuses.
Vision XP+ VAC Page 23
2 Operating Safety
2.9 Safety Devices
Operating Instructions
Version 1.5
2.9.2 Safety Precautions for Closing Hoods and Process Cham-
ber
In order to eliminate any risk of injury when closing the oven’s hoods and
process chambers, the operating company must require oven operating per-
sonnel to close the hoods and process chambers in accordance with the fol-
lowing instructions only.
During the closing of hoods and process chambers there is a danger of per-
sons’ limbs being jammed in the gap between process chamber cover and
bottom or between hood and frame.
When closing hoods and process chambers the horn sounds as an addition-
al indication of a danger situation.
Description:
• Make sure that nobody is in close proximity to the hoods or process cham-
ber when they are opened and closed.
• For opening or closing press the software button in the main mask.
• Keep the software button pressed until the hoods or the process cham-
bers have been opened or closed completely. If the button is not pressed
any more the hoods or the process chamber stay in the present position.
Danger!
If Hoods and Process Chambers are Closed Incorrectly.
If during opening or closing of the process chamber a failure of the drive
motor occurs (power failure, motor protection tripped), the process cham-
ber remains in its momentary position. Only after rectifying the failure, the
process chamber can be moved into the desired position by means of the
software button.
Page 24 Vision XP+ VAC
2 Operating Safety
2.9 Safety Devices
Operating Instructions
Version 1.5
2.9.3 Emergency-Stop Buttons
The emergency-stop buttons have red tops, and snap into the selected
position after actuation. When an emergency-stop button is actuated, the
corresponding switching contact in the safety circuit opens, and the
emergency-stop relay is tripped.
The following functions are switched on for safety reasons:
• PC (for control)
• Fan in the control cabinet (for cooling)
• Heating Fans >90°C
Emergency-Stop appears at the display in the alarm window.
2.9.4 RCCBs
With facility provided RCCB please use only the following type:
• AC/DC sensitive RCCB Type B 300mA.
2.9.5 Auto-Start-Switch
The auto-start-switch is a software button which appears in the main win-
dow. See also Fig. 5-10, Main Window‚ on page 82, item M.
The drive unit, the heat and compressed air (optional) can be turned on
(auto-on) or off (auto-off) simultaneously with this switch.
If the nitrogen will be switched on or switched off depends from the activated
software.
2.9.6 Operating Mode Selector Switch
The system can be set to either the service mode or automatic operation
with the operating mode selector switch.
The automatic operating mode is used when the system is operated under
normal circumstances. The heating chamber and the cooling tract are
closed. The following functions are disabled for safety reasons: “open/close
heat chamber”, “open/close cooling tract” and “reset load”.
The service mode is selected when maintenance, setup and repairs are
necessary.