Electrical Connections Of Pump And Supply; Control Inputs; Connection Of Additional Protections: Overflow, Water Lack, Motor Thermal Protection - Dab Ebox Instructies Voor Installatie En Onderhoud
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Beschikbare talen
Beschikbare talen
7.1
Electrical connections of pump and supply
Connect the supply line and the pumps as described in chapter 2.1.
7.2
Control inputs
As inputs the Ebox accepts either floats, level probes or depth sensors. Particular care must be taken:
Use floats for draining, closed contact with low water level, see Figure 31 draining.
•
Floats and level probes cannot be used at the same time.
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Level probes can only be used with clear, clean water.
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If the depth sensor is being used, the maximum level and minimum level alarms can be generated by floats or by level
•
probes, or by thresholds of the value read by the sensor itself.
7.3
Connection of additional protections: overflow, water lack, motor thermal protection
It is possible, but not necessary, to use the alarm inputs to the Ebox so that the pumps stop in the case of reaching too low a level, or
too high motor temperature. In the case of an alarm, the pumps stop, the alarm leds blink, the corresponding alarm outputs are
activated.
If too high a level is reached, the pumps are activated. The alarm leds blink, the corresponding alarm outputs
are activated.
If the display is present, in all cases the type of alarm is indicated.
When the alarm conditions no longer exist, the Ebox resumes normal operation.
Maximum level alarm: the signal for this alarm may come from a float, from a level probe, or from the depth sensor (only
•
for Ebox with display). The level probe or float must be connected to terminal R of the Ebox and positioned in the tank in the
highest point that the liquid can safely reach.
Note: if this alarm is not used, the contacts of the terminal R are left open.
If the depth sensor is used to obtain this alarm, the parameter ML must be set at the highest level that the liquid can safely reach.
Note: if this alarm is active, the pumps start automatically.
Minimum level alarm: the signal for this alarm may come from a float, from a level probe, or from the depth sensor (only for
•
Ebox with display). The level probe or float must be connected to contact N of the Ebox and positioned in the tank in the
lowest point that the liquid can safely reach.
Note: in case of an alarm, the pumps stop.
If the depth sensor is used to obtain this alarm (only for Ebox with display), the parameter LL must be set at the lowest level that the
liquid can safely reach.
Note: if this alarm is not used, input N must be jumpered. To identify input N, refer to Figure 32.
Motor thermal protection: the Ebox 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. For the position of the terminals, see Figure 33.
ENGLISH
Figure 32: Position of inputs and alarms
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