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Parameterization
5-42 | SRW 01
5
P636 – Earth Leakage Start up Time Inhibit
Adjustable
Range:
1 to 600 s
Factory
Setting:
5 s
Proprieties:
Sys, rw
Description:
It defines the inhibition time of the earth leakage protection action during motor start, increment/decrement of
1 s.
NOTE!
The inhibition time of the earth leakage protection at the motor start begins to be counted whenever
the measured motor current is higher than 15 % of the rated current set on parameters P401 and/or
P402 or the residual current detected by the earth leakage current sensor (ELS) (P037) is higher than
150 mA.
NOTE!
At motor start, if there is a residual current detected by the earth leakage current sensor (ELS), if the
earth leakage protection (P631) and the earth leakage protection inhibition function at start (P635) are
abled, the actuation time of the relay will be the sum of the times set on parameters P633 and P636.
NOTE!
If the earth leakage protection function at start is abled (P635), the earth leakage protection will only
start when the inhibition time of the protection at start (set on P636) expires.
5.7.9.3 Trip Inhibition Function in Case of Short Circuit
The SRW 01 also offers a trip inhibition function in case of short circuit (P637) as long as the earth leakage
protection is abled on parameter P631. The level of short circuit current for this protection is fixed at 10 A and it
cannot be set by the user. This function only has effect if the earth leakage protection action, configured on P634,
is selected to Switch Off (Trip).
If the residual current detected by the earth leakage sensor is higher than 10 A and the protection that inhibits
the trip, when there is a short circuit condition, it abled on parameter P637, the SRW 01 will generate the alarm
“E0077” to indicate that the earth leakage current is in short circuit condition and it will not allow the SRW 01 to
trip unless the earth leakage current reduces to a value lower than 10 A. The factory standard for this function is
disabled.
P637 – Earth Leakage Short Circuit Trip Inhibit
Adjustable
Range:
0 = Disabled
1 = Enabled
Factory
Setting:
0
Proprieties:
Sys, rw
Description:
It ables or disables the trip inhibition in case of short circuit.
ATTENTION!
The Trip Test function described in
Item 5.7.25.2 Trip Test on page 5-58
possible to verify the correct operation of the digital output (s), not verifying the flow of earth leakage
current or default on the connection wiring between the earth leakage sensor (ELS) and the control
unit (UC).
Содержание SRW 01
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