Safeline Sureline DOV707H, Instruction Manual

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LED (H) Range
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CHAPTER 1 - Installation

Transport and handling
This being a highly sophisticated electronic unit, it must be transported and handled with care as per the precautions
stipulated in the foregoing section "PRECAUTIONS".
 Installation
The installation must be carried out by responsible, competent and qualified technical personnel once the present manual
has been fully understood.
The location of the unit must meet the requirements and respect the precautions stipulated in the chapter
"PRECAUTIONS", especial attention being paid to those under the heading "Most important".
The unit must be installed in a standard single-phase installation, active phase and neutral having a difference of potential
of 230 V AC, or a three-phase installation (3 neutral) having a difference of potential from phases to neutral of
230 V AC, and also a protection conductor of operative earth. Moreover, the installation must have, at its main switch
panel, appropriate circuit-breakers or fuses and a differential switch.
Wiring
The unit is fitted with top quality connection terminals. Each terminal has notches to enable easier fixing of the wires and
prevent accidental removal. Likewise, the clamping screws have a self-fixing system which avoids their falling out should
they work loose.
Moreover, the serigraphy identifies the corresponding counter-positioned terminals on the fanning strip. Intuitive identifying
colours back up the graphic indications.
1. Connect the POWER L1 terminals to line 1 (phase 1) and POWER N to neutral of the mains line, 230V senoidal
alternating current, 50Hz.
2. Connect the remaining terminals as indicated for the chosen configuration. Please, refer to "Circuit diagrams".
It is imperative that the wiring of the terminals and the tightening of the screws in the fanning strip be effected correctly.
"Circuit diagrams" should be consulted. Should any doubt arise, the manufacturer or authorised distributor should be
consulted.
CHAPTER 2 - Verification and start-up
Start-up
Connect all up-stream conductors by means of switches, sectionalisers or others. The reinitiation sequence will
automatically be carried out. The ancillary MCB will then reset and the unit will be operative.
Carry out all the protection tests.
In order to carry out the protection test correctly, the unit must be in the permanent ON position before pressing the test
button. To this end, check that the MCB is enabled, otherwise carry out the “start-up” process.
Functioning is correct when, once the Test button is pressed the unit cuts off and emits the corresponding diagnosis.
When the Test has finished, the unit resets automatically in the case of TEST OVERVOLT and LOW VOLT. In the case of
TEST
I

N
300 mA, the unit will start the countdown process for the reclosure timer. Once this process is concluded, the unit
will reset. Should one wish to interrupt the process, one must press “reset”.
Differential Test with rated threshold
When “TEST I
 N
” is pressed, a defect current is generated in the metering toroidal of the same value as the differential
protection, i.e. 30 mA for a 30mA RCD. Other RCD’s, however, stick to the established legal margins and provoke a defect
current 250 % superior to the rated value, which is no guarantee that they will actually function at the rated value.
Such a high degree of precision and safety requires that the measurement toroidal indicate the direction in which the wiring
be passed through This ensures that the defect intensities which circulate throughout the installation are added to the Test
intensity rather than deducted. Therefore, when the test is carried out in an installation having zero defect intensities, one
will have an optimum test situation. To the contrary, should there be some defect intensity value in the installation, said
value would be added to that of the test itself and, in such a case, the test would not be ideal.
Autotest: differential
The unit automatically tests itself for differential protection every 3 seconds. It checks the constant operativity of: toroidal,
wiring of same, amplification, filtering and detection. The performance and its threshold must be checked manually
since this involves a cut-off.