IM3G-VX
Doc. N° MO-0068-ING
Rev.
1
Pag.
20
of
36
Copyright 2010 - Microener
12. PROGRAMMING
The relay is supplied with the standard default programming used for factory test. [ Values here below
reported in the “ Display “ column ].
All parameters can be modified as needed in the mode PROG and displayed in the mode SET DISP
Local Programming by the front face key board is enabled only if no input current is detected
(main switch open). Programming via the serial port is always enabled but a password is
required to access the programming mode. The default password is the null string; in the
standard application program for communication “MS-COM” it is also provided an emergency
password which can be disclosed on request only.
As soon as programming is enabled, the Led PRG/IRF flashes and the reclosing lock-out relay
R5 is deenergized. Enter MODE "PROG" and SELECT either "SETTINGS" for programming of
parameters or "F
RELAY" for programming of output relays configuration; enable programming by the
indirect operation key PROG.
The key SELECT now scrolls the available parameters. By the key (+) , (-) the displayed values can be
modified; to speed up parameter's variation press the key SELECT while "+" or "-" are pressed.
Press key "ENTER/RESET" to validate the set values.
12. 1 - PROGRAMMING OF FUNCTIONS SETTINGS
Mode PROG menu SETTINGS. (Production standard settings here under shown).
Display
Description
Setting Range
Step
Unit
NodAd
1 Identification number for connection on serial communication bus
1 - 250
1
-
Fn
50
Hz
Mains frequency
50 - 60
10
Hz
In
500
Ap
Rated primary current of the phase C.Ts.
0 - 9999
1
A
UnS
100
V
Rated secondary voltage of Vts (phase to phase)
100 - 125
1
V
Ib
0.5
In
Generator’s rated current as p.u. of C.Ts rated current
0.5 - 1.1
0.1
In
F(I>)
D
Operation characteristic of the low-set overcurrent element
D = Independent definite time.
SI = Dependent normal inverse time
D - SI
D - SI
-
U/I>
ON
Voltage control on level I>
ON - OFF
ON-OFF
-
I>
1.0
Ib
Trip level of low-set overcurrent element (p.u. of Ib)
1 - 2.5 - Dis
0.01
Ib
tI>
0.05
s
Trip time delay of the low-set overcurrent element
In the inverse time operation [tI>] is the trip time delay at I = 5x[I>]
0.05 - 30
0.01
s
U/I>>
ON Voltage control on level I>>
ON - OFF
ON-OFF
-
I>>
3
Ib
Trip level of high-set overcurrent element (p.u. of Ib)
1 - 9.9 - Dis
0.1
Ib
tI>>
0.05
s
Trip time delay of the high-set overcurrent element
0.05 - 3
0.01
s
1Is
0.05
Ib
Generator’s max. continuos negative sequence current rating
(p.u. of Ib)
0.05 - 0.5 - Dis
0.01
Ib
Ks
5
s
Time multiplier of the I
2
t time-current curve
5 - 80
1
s
tcs
10
s
Cooling time from trip level to the state corresponding to I2=1Is
10 - 1800
1
s
In
500
Ap
Ap
is the unit of measure,
Amps primary.
500
is the
setting default
In
is the name
of the
variable
Содержание IM3G-VX
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