ACO MultiControl Duo Manuel D'utilisation page 35

6.4 Error message outputs
Terminal 01/02, 230 V AC non-floating alarm output for collective fault.
CAUTION!
Terminal 01
Terminal 02
Terminal 03/04/05
If "Intermittent alarm" is activated in the menu, the relay is clocked so that a cheaper constant light can be
used instead of a flashing light.
Terminal 06/07/08
Terminal 09/10/11
Terminal 12/13/14
6.5 Input for float switch for protection against dry running
Terminal 15/16 = protection against dry running
Polarity of the terminals: 15 = positive and 16 = negative
If a float switch is connected to terminal 15/16, it is possible to prevent the cutter or impeller from emerging
from the medium. Protection against dry running is active in both automatic and manual mode.
The relevant regulations must be observed for use in areas with a potentially explosive atmosphere:
This input can optionally also be used to lock the system if a special program has been agreed.
6.6 Examples of connections for operating the switchgear with float switches
The display indicates which switch is closed. NO contacts must always be used.
"Float Switches" must be selected in the menu under "Level Control".
Operation with 3 float switches
Betrieb mit 3 Schwimmschaltern
17 18 19 20
The relevant regulations must be observed for use in areas with a potentially explosive atmosphere:
The input for the overflow float switch is always active, even if a different level recording system has been
selected. If the flood alarm is triggered, both pumps are started with a time delay.
MultiControl Duo
N connected
In L1 alarm scenario (fused internally with 1A time-lag fuse)
Floating collective fault
Floating fault P1
Floating fault P2
Floating overflow alarm
Operation with 4 float switches
Betrieb mit 4 Schwimmschaltern
21 22 23 24 17 18 19 20 21 22 23 24
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ver. 1.18
Operation with 4 float switches
Betrieb mit 4 Schwimmschaltern
and shared line
und einer gemeinsamen Leitung
17 18 19 20 21 22 23 24