Operation and setting
24
TGH1410en/03.2012
ard mode and that the measured value of the residual current is being indicat-
ed, refer to page 21.
An example is given here on how to change the alarm response value I1 (I
Δn1
).
It is presumed that the option overcurrent (HI) has been selected in the SEt/I
12 menu (factory setting). Proceed as follows:
1. To access the menu mode, press the MENU/Enter key for more than 1.5
seconds. The flashing short symbol AL appears on the display.
2. Confirm with Enter. The parameter response value > I 2 flashes, in addi-
tion the associated overcurrent value > 30 mA appears.
3. Use the Down key to select the parameter response value I 1. The
parameter I 1 flashes, in addition the associated percentage value for
prewarning 50 % of I 2 appears.
4. Confirm with Enter. The current value for prewarning appears on the
flashing display.
5. Use the Up or Down key to set the appropriate response value. Confirm
with Enter. I 1 flashes.
6. You can exit the menu by:
– Pressing the Enter key for more than 1.5 seconds to reach the next
higher level or
– Selecting the menu item ESC and confirming with Enter to reach
the next higher level.
5.5.2 Changeover from overcurrent to undercurrent mode or to win-
dow mode
The operating mode can be changed in the SEt/I 12 menu using the parame-
ters HI, Lo and In. By default, overcurrent operation (HI) is set. Refer to page 30
for a detailed description on how to change over to the window mode.
The currently active segments are flashing! In the figures below,
the segments where device settings can be carried out are high-
lighted by an oval. The menu mode can be reached by pressing
the MENU key for more than 1.5 seconds.
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