BOC Edwards iL600, Инструкция по эксплуатации

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1.10.2 Setpoints, warning and alarm conditions
Note: Sensors which generate alarm and warning messages are not safety sensors: see Section 1.10.3.
Each Module which monitors sensors has a microprocessor. Each monitored sensor has four
associated setpoints. The setpoints are: the low warning setpoint, the high warning setpoint, the
low alarm setpoint and the high alarm setpoint. The microprocessor compares the sensor data to
the setpoints to determine if an alarm or warning condition exists:
•
If the sensor data is below the low warning setpoint or above the high warning setpoint, a
warning condition exists. A warning condition means that some aspect of the operation of
the iL system is abnormal. The iL system will continue to operate.
•
If the sensor data is below the low alarm setpoint or above the high alarm setpoint, an alarm
condition exists. An alarm condition means there is a serious fault which results in the
shut-down of the iL system to prevent damage to the iL system. However, note that for some
of the alarm conditions, you may be able to continue to operate the iL system if you have
configured the iL system to 'run til crash': see Section 5.9.
If an alarm or warning condition exists, an appropriate alarm or warning message is displayed
on the Pump Display Module and an appropriate alarm or warning indication is sent to other
Modules on the network. Refer to Section 6 for a full list of the Pump Display Module warning
and alarm messages.
You can use the default setpoints or you can use a Single Pumpset Monitor to adjust the setpoints
to suit your application. Refer to Section 2 for the default setpoints.
1.10.3 Safety sensors
The LCDP pump has two safety sensors which are connected to the internal emergency stop
circuit in the Electrics and Pump Control Module. If either of these safety sensors operate, it will
have the same effect as the operation of the emergency stop switch described in Section 5.10, and
the iL system is immediately shut down.
On iL600 systems, the LCMB pump has two safety sensors which are connected to the internal
control system. If either of these safety sensors operate, the LCMB pump is temporarily switched
off, to allow it to cool down.
Table 1-1 shows the safety sensors and the shutdown switch off conditions.
iL Dry Pumping Systems 1-17