User Manual Manual

5-7 Setting the Operational Parameters
Publication 825-UM001B-EN-P January 2001
Table 5.D Cat. No. 825-M… Operating Parameters (Continued)
➊ If EF Core Trip is set to “off”, the programming menu skips to parameter EF C Warning.
➋ If EF C Warning is set to “off”, the programming menu skips to parameter Short Circ Trip.
➌ If Short Circ Trip is set to “off”, the programming menu skips to parameter Underload Trip.
Group
Required
Option Card
Cat. No.
LCD
Setting
Range
Description
Earth (ground) fault 825-MST
On/Off ➊
Earth (ground) fault
protection (core balance
transformer) On/Off
1…2 000
Core balance transformer
current ratio
5…999 mA
1.00…50.00 A
Earth (ground) fault trip
(core balance transformer)
Tripping level
0.1…5
Earth (ground) fault trip
(core balance transformer)
Tripping delay
All relays
Earth (ground) fault
warning (core balance
transformer)
Assignment of output
relay
On/Off ➋
Earth (ground) fault
warning (core balance
transformer) On/Off
5…999 mA
1.00…50.00 A
Earth (ground) fault
warning (core balance
transformer)
Tripping level
All except main
relay
Earth (ground) fault
warning (core balance
transformer)
Short circuit 825-MST
On/Off ➌
Short-circuit protection
On/Off (h.v. motors only)
4.0…12.0
Short-circuit trip
Tripping level… 
e
20…990
Short-circuit trip
Tripping delay
Relay #1/
no relay
Short-circuit trip, choice
between output relay #1
and no relay
EF CORE TRIP
OFF
CORE C.T. RATIO
1
EF C TRIP LEVEL
1 A
EF C TRIP TIME
0.50 sec
EF CORE TRIP
MAIN RELAY
EF C WARNING
OFF
EF C WARN LEVEL
500 mA
EF C WARNING
ALARM RELAY
SHORT CIRC TRIP
OFF
SC TRIP LEVEL
10.00 x Ie
SC TRIP TIME
50 ms
SHORT CIRC TRIP
AUX RELAY #1