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SIF5600 - Manual - 03 - 2008
3.4 eNVIrONMeNtAL cONDItION
Ambient temperature
-25...+55 °c
Storage temperature
-40...+85 °c
relative humidity
10...95 %
Atmospheric pressure
70...110 kPa
Note: LCD contrast impaired for temperature lower 0 °C
3.5 MMI
Display
[1]
16x2 character LcD
Led
ON (green)
50-51 (red)
50N-51N (red)
cB OPeN (green)
cB cLOSeD (red)
Keyboard
4 keys
[2]
Keylock
3 positions
3.6 cOMMUNIcAtION INterFAce
Local Port
Port
9 pin rS232
Baud rate
1200...9600 bps
Data Bit
5...8
Parity
Odd, even, None
Protocol
MODBUS rtU®
Network
Port
two wire rS485
type
Half Duplex
Baud rate
1200...9600 bps
Data Bit
5...8
Parity
Odd, even, None
Protocol
MODBUS rtU®
3.7 GeNerAL SettINGS
Phase nominal current
I
n
1 A, 5 A
Phase nominal primary current of the phase cts
I
np
1A...10 kA
(1...99 A step 1 A
100...990 A step 10 A
1...10 kA step 100 A)
residual nominal current
I
en
1 A, 5 A
residual nominal primary current of the residual ct
I
enp
1 A...10 kA
(1...99 A step 1 A
100...990 A step 10 A
1...10 kA step 100 A)
3.8 PrOtectION AND cONtrOL FUNctIONS
Phase overcurrent (50/51)
First threshold 50/51 definite time (
I
>
indep
)
0.100...10.00
I
n
(0.100...0.999
I
n
step 0.001
I
n
)
(1.00...10.00
I
n
step 0.01
I
n
)
Definite time operating time (
t
>
indep
)
0.05...180 s
(0.05...9.99 s step 0.01 s)
(10.0...99.9 s step 0.1 s)
(100...180 s step 1 s)
First threshold 50/51 inverse time (
I
>
dep
)
0.100...2.50
I
n
0.100...0.999
I
n
(step 0.001
I
n
1.00...2.50
I
n
(step 0.01
I
n
)
Inverse time operating time (
t
>
dep
)
[3]
0.10...60.0 s
0.10...9.99 s (step 0.01 s)
10.0...60.0 s s (step 0.1 s)
Note For some versions
Note Three keys for the SIF5600 versions without display
Note 3 IEC55-3 type A moderately inverse-time characteristic: t = 0.4 · t>dep / [(I/I>dep)0.0 - ] with .0 fw release and followings
IEC55-3 type B very inverse-time characteristic:
t = 3.5 · t>
dep
/ [(I/I>
dep
) - ] with .0 fw release and followings
IEC55-3 type C extremely inverse-time characteristic: t = 80 · t>
dep
/ [(I/I>
dep
)
- ] with .0 fw release and followings
With previous 2.00 fw release (normalization at fourfold threshold), the “SIF5600-Manual-10-2006” reference document must be used
t
:
operate time
t>
dep
:
operate time setting
I>
dep
:
threshold setting
Asymptotic reference value:
1.1
I>
dep
Minimum operate time:
0.05 s,
Range: . ≤ I/I>
dep
≤ 0, Upper limit:
50
I
n