MICROENER IM30-GLF, Operation Manual

Page: 19 / 31

IM30-GLF
Doc. N° MO-0062-ING
Rev. 3
Date 14.02.2005
Copyright 2010 - Microener Firmware: 2.0X Pag 19 of 31
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 alarm relay R5 is deenergized..
Enter MODE "PROG" and SELECT either "SETTING1" or "SETTING2" 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: setting range 50 - 60 Hz
In 500 Ap Rated primary current of the phase C.Ts. 1 - 9999 1 A
On
500
Ap
Rated primary current of the C.Ts. or of the tore C.T. supplying
the zero sequence current 1 - 9999 1 A
Uns 100 V Rated secondary voltage of V.Ts (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 -
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
I>>
1
Ib
Trip level of high-set overcurrent element (p.u. of Ib) 1
– 12 - Dis
0.1 Ib
tI>> 0.05 s Trip time delay of the high-set overcurrent element 0.05 - 3 0.01 s
O> 0.02 On Trip level of earth fault element (p.u. of the rated current of the
C.Ts. for zero sequence detection)
The Earth Fault element does not work when frequency is
outside the range 45-65Hz due to the action of the input
band-pass filter
0.02 - 0.4 - Dis 0.01 On
tO>
0.05 s Trip time delay of low-set earth fault element 0.05 - 30 0.01 s
1Is
0.05 Ib
Generator’s max. continuous 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
tc
10
s
Cooling time from trip level to cold state 10 - 1800 1 s
2Is 0.03 Ib Negative sequence current alarm level 0.03 - 1 - Dis 0.01 Ib
t2Is 1 s Independent trip time delay of alarm element 1 - 100 1 s
Ir>
0.02 In Trip level of the reverse power element (Active component of
current as p.u. of In).
The Reverse Power function
disactivated when frequency

36Hz
0.02 - 0.2 - Dis 0.01 In
In 500 Ap
Ap is the unit of measure,
Amps primary.
500 is the
setting default
In is the name
of the variable