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Beschikbare talen
Beschikbare talen
Motor thermal protection: the device has an input for the thermal protection of each motor. If the motor used is provided
•
with thermal protection, this protection can be connected to the terminals KK. If the protection is not present in the motor,
the terminals must be jumpered. The terminals are shown in Figure 45.
If the alarms are not used, they must be jumpered. So jumpers must be fitted on the inputs of the contacts R, KK1 and
KK2.
8.4
Connection of the alarm outputs
If alarms occur, this is indicated by the Ebox in three ways:
With the leds on the front panel, which give a number of blinks depending on the error.
•
With the outputs Q1, Q2, Q3 which short circuit as specified in Table 17. The operating logic of the alarms is as follows: Q1
•
closes following malfunctions of pump 1, Q2 of pump 2 and Q3 for general errors.
With the indications on the display (if present). In this case it is also possible to see the alarm log.
•
If the panel is not fed, Q1, Q2 and Q3 are closed, so they give an alarm signal.
8.5
Operation with pressure sensor (recommended choice)
It is recommended to use this operating mode, rather than pressure switches, because it allows greater flexibility in managing the
system, the pressure distributed by the set can be seen, and installation is easier. In this case it will be possible to set the Set Point
pressure and the pressure differential for the restarting and stopping of the pumps.
8.6
Connection of the pressure sensor
The pressure sensor must be connected to the terminal board, see Figure 46, according to the following diagram:
ENGLISH
Figure 44: Inputs
Figure 45: Thermal protection inputs KK
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