Measures prior to commissioning
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Refer also to chapter 8.8 Connecting the monitoring devices
in this regard.
Set the monitoring devices in accordance with the following
limit values for “pre-alarm” and “disconnection”.
Incorporate these limit values in the control system of the
plant. If the limit values for “pre-alarm” and “disconnection”
are exceeded, a visual signal must be displayed or an
acoustic signal sounded in the control room.
For values above the limit values for “disconnection”,
shut down the fan immediately and rectify the cause
of the fault. Only when the fault has been rectified
may the fan be restarted.
DANGER
Extremely high fan vibrations or bearing temperatures!
Fatalities or extremely serious injuries resulting from tipping
due to fixings of the fan becoming loose, or due to the
ejection of parts.
→ Ensure continuous monitoring of the fan condition.
→ Check functional efficiency of the monitoring devices.
→ Shut down the fan if the limit values are exceeded.
Refer to chapter 8.9.
→ Rectify the faults. Refer to chapter 11.
Measures to be implemented if the limit values are
exceeded:
Exceeding limit value for …
Measure
Pre-alarm
Operation of the fan
permissible for a few
minutes under
observation. The fan
could sustain damage.
Disconnection
Shut down and switch off
the fan immediately.
Rectify the fault. Refer to
chapter 11.
8.9 Monitoring devices limit values
Table 8-4
Measures to be implemented if the limit
values are exceeded
