User Manual

3UG4621/3UG4622 current monitoring relays
7.4 Operation
3UG4 / 3RR2 monitoring relays
Manual, 02/2013, NEB927043002000/RS-AA/002
159
7.4 Operation
Parameters
Parameterization of the devices is possible locally using the display and the three keys.
Parameter information
The table below shows the settable parameter information of the 3UG4621 and 3UG4622
current monitoring relays:
Table 7- 2 Parmeter information, 3UG4621 and 3UG4622 current monitoring relays with digital setting
Setting range
Menu
level
Parameters
Minimum value Maximum value
Increment Factory setting
"RUN" Threshold for undershoot (I▼) 3.0 mA or OFF
1)
0.05 A or OFF
2)
500 mA
1)
10.0 A
2)
0.1 mA
1)
0.01 A
2)
50 mA
1)
1.5 A
2)
"RUN" Threshold for overshoot (I▲) 3.0 mA
1)
0.05 A
2)
500 mA or OFF
1)
10.0 A or OFF
2)
0.1 mA
1)
0.01 A
2)
150 mA
1)
2.5 A
2)
"SET" Hysteresis (Hyst) 0.1 mA
1)
0.01 A
2)
250.0 mA
1)
5.0 A
2)
0.1 mA
1)
0.01 A
2)
10.0 mA
1)
0.5 A
2)
"SET" ON-delay time (onDel) 0.1 s 20 s 0.1 s 0.1 s
"SET"
Tripping delay time (
I Del
▼
▼
)
0.1 s 20 s 0.1 s 0.1 s
"SET" Reset response (Mem) no = Autoreset yes = Hand-RESET -- no = Autoreset
"SET" Relay switching behavior
(closed-circuit principle NC /
open-circuit principle NO)
NC / U
s
= on or NO / I > 3 mA
1)
NC / U
s
= on or NO / I > 50 mA
2)
-- NC / U
s
= on
1)
3UG4621 current monitoring relay
2)
3UG4622 current monitoring relay
Note
The monitoring mode "Overshoot" or "Undershoot" is defined with the setting OFF at the
threshold for undershoot or overshoot.