Temperature Monitoring; Switching Off And Venting; Switching Off; Venting - Pfeiffer Vacuum HiPace 800 Operating Instructions Manual

Operation
LED
Green
Yellow
Red
Tbl. 12:
6.4.2 Temperature monitoring
If threshold values are exceeded, output signals from temperature sensors bring the turbopump to a
safe condition. Depending on the type, temperature thresholds for warning and error messages are im-
mutably stored in the electronic drive unit. For information purposes, various status requests are set up
in the parameter set.
● In order to avoid switching off the turbopump, the electronic drive unit already reduces the power
● Further reduction of drive power and thus decreasing speed can potentially lead to underrun the
● Exceeding the temperature threshold for error messages switches off the turbopump immediately.
6.5 Switching off and venting
6.5.1 Switching off
Notes for switching off the turbopump
1. Shut down the turbopump via the control unit or remote control.
2. Close the fore-vacuum line.
3. Switch off the backing pump, if necessary.
4. Vent the turbopump.
5. Close the supply lines (e.g. for cooling water or sealing gas).
6.5.2 Venting
Risk of injuries due to contact with vacuum when venting
While venting the vacuum pump there is a risk of minor injuries due to the direct contact of body parts
with the vacuum, e.g. hematomas.
► Do not fully unscrew the venting screw out of the housing during venting.
► Keep a distance from automatic venting device, such as venting valves.
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Symbol LED status
Off
On, flashing
On, inverse flashing
On, constant
On, flashing
Off
On, constant
Off
On, constant
Behavior and meaning of the LEDs on the electronic drive unit
consumption in case of exceeding the warning threshold for excess temperature.
─ Examples are an impermissible motor temperature, or impermissibly high housing tempera-
ture.
rotation speed switchpoint. The turbopump switches off.
We recommend
Vent the turbopump after shutdown. By doing so, you prevent particles flowing back into
the vacuum system from the fore-vacuum area.
CAUTION
Display Meaning
Currentless
"pumping station OFF", rotation speed
≤ 60 rpm
"pumping station ON", set rotation speed not
reached
"pumping station ON", set rotation speed
reached
"pumping station OFF", speed > 60 rpm
No warning
Warning
No error, no warning
Error, malfunction