DAB ESC plus 10T, Инструкция по установке и обслуживанию

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ENGLISH
5
1 OVERVIEW:
This booklet describes the instructions for use and maintenance of the ESC
plus
series control panels.
This booklet must be carefully conserved for future references after reading.
Before installing and connecting the panel, read the following instructions carefully.
The Manufacturer declines all responsibility for accidents or damages caused by negligence or failure to observe
the instructions provided in this booklet. Installation must be performed in compliance with the directives issued by
the local authorities and the regulations in force, as well as with rules of good workmanship and in relation to the
particular installation in question.
1.1 SYMBOLS USED IN THE MANUAL:
This symbol indicates a potential risk of electrical nature This symbol indicates a subject of particular importance
2 GENERAL INFORMATION:
The ESC
plus
series control panels are available in the following sizes:
ESC
plus
3M: single phase rated loads up to a maximum of 18A nominal (230V).
ESC
plus
4T: three phase rated loads up to a maximum of 9A nominal (400V or 230V).
ESC
plus
10T: three phase rated loads up to a maximum of 20A nominal (400V or 230V).
ESC
plus
15T: three phase rated loads up to a maximum of 30A nominal (400V or 230V).
3 DESCRIPTION:
ESC
plus
in the standard version is available with the following functions:
- Connection and disconnection directly in line (DOL);
- Overload protection.
- Overvoltage and under voltage crowbar;
- Short-circuit protection;
- Protection against dry running (no water protection);
- Protection against 2 phases operation (three phases).
3.1 OPERATIONS:
The ESC
plus
has been designed to operate connected to submerged and surface electric pumps, but it may be
used with any asynchronous electric motor.
A wide range of electric pumps may be managed with just one version.
The rated current is calibrated by programming via the keys on the front of the panel.
In the event of phase failure, overload or overvoltage, the system disconnects the motor [OVERLOAD], after a
time which simulates the tripping of a thermal overload cut-out.
In the event of current overload, the system runs 3 tests automatically, with progressive pauses between each (10,
20, 40 min.) in order to verify whether the overload current conditions persist, indicating the waiting status with the
flashing text OL (OVERLOAD). During one of the tests, if the current falls below the set trip value, the alarm is
reset and ESC
plus
resumes normal operation.
After 3 tests if the overload condition persists, ESC
plus
trips the alarm with the OL indicator permanently lit, and
remains blocked until a manual reset is performed (see 3.2.13).
The dry running protection does not require sensors (source of errors and extra costs), but functions by checking
the COS

(power factor) value absorbed by the motor.