13.1.5
Dry-running protection connec-
tion
!
Fig. 77: Overview of connections, terminal lay-
out
13.1.6
Switchgear configuration: Switch-
ing on ex-mode
13.2
System impedances
Installation and operating instructions Wilo-Control EC-L
Appendix
DANGER! Risk of explosion due to incorrect execution! Monitoring of the dry-run-
ning level must be performed with a separate float switch!
Connect the float switch to the terminal strip for active ex-mode (see Overview of
components [} 63], item 4b). For details on the terminal number, see the overview of
connections in the cover.
Adapted functions
Ex-mode adapts the following functions:
▪ Follow-up times
All follow-up times are ignored and the pumps switched off immediately!
▪ Dry-running level (by level sensor or dynamic pressure bell)
The pumps can first be switched on again once the "All pumps Off" fill level has been
exceeded!
▪ Alarm dry-running protection (via float switch)
Alarm manual reset (anti-reactivation lock)!
▪ Alarm thermal motor monitoring
Alarm manual reset (anti-reactivation lock)!
Activating ex-mode
1. Press the operating button for 3 s.
⇒ Menu 1.00 appears.
2. Turn the operating button until menu 5 appears.
3. Press the operating button.
⇒ Menu 5.01 appears.
4. Turn the operating button until menu 5.64 appears.
5. Press the operating button.
6. Change value to "on": Turn the operating button.
7. Press the operating button.
▶ Ex-mode switched on.
3~400 V, 2-pole, direct starting
Power in kW
2.2
2.2
2.2
2.2
3.0
3.0
3.0
3.0
4.0
4.0
System impedance in
ohms
0.257
0.212
0.186
0.167
0.204
0.148
0.122
0.107
0.130
0.094
en
Connections/h
12
18
24
30
6
12
18
24
6
12
97