Doepke DFA 2-3, Руководство по эксплуатации

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2.4. Remote tripping
The DFA is equipped with an internal test resistor which is provided with a residual current of I
∆n
= 500
mA for a remote tripping of a RCCB.
The terminals must be connected as follows (see “Wiring for Remote Trip Facility”, p. 23):
►
Remote trip facility Lx (Terminal 15)
Remote trip facility Lx is connected with a phase Lx switched by the RCCB.
►
Remote trip facility N (Terminal 16)
Remote trip facility N is connected with the unswitched neutral wire on the input side of the RCCB.
Note: If the remote tripping is intended to be carried out with a nominal residual current I
∆n
of the
connected RCCB (simulation of the test button activation), then in this case the optionally available
resistor cable for 300 mA, 100 mA or 30 mA must be used. Otherwise the testing will be carried out
using 500 mA.
3. Operating Instructions
3.1. Rotary Switch Settings
Three operating modes and the number of reconnection attempts for the DFA can be selected with the
rotary switch on the enclosure cover:
►
Operating mode ON
The DFA is switched on and carries out the control commands which are activated via the signal inputs.
The status LED is permanently illuminated.
►
Operating mode AUTO 1x / AUTO 3x
The DFA is switched on and carries out the control commands which are activated via the signal
inputs. The status LED is permanently illuminated. If automatic reconnection is required then
for safety reasons we recommend that the number of reconnection attempts should be set to 1x
using the rotary switch on the enclosure cover. However, if several reconnection attempts are
needed in the system then the number may be increased to 3x. In each case these will be carried
out 15 seconds after tripping. Within this period, flash code 3 will be signalled via the status LED
(see “Flash Codes”, p. 21), in order to indicate the imminent connection attempt.
!
Risk of crushing on automatic connection!
If the RCCB has not been switched on within five seconds of the last reconnection attempt, i. e. the fault
in the RCCB‘s circuit is still present, no further attempts at reconnection will be made. The DFA will be
blocked and will not carry out any more control commands, which will be indicated using flash code 4.
In order to cancel the blocking, the DFA must briefly be reset using the rotary switch (RESET). A brief
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