Motor Protection; Insulation Monitoring (In The Cpi Version Only) - Wilo Control EC-Fire Notice De Montage Et De Mise En Service

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Menu no. / Description
7.04 Input of serial number (first 4 digits)
Value range: 0000 ... 9999
Factory setting: device ID
7.05 Input of serial number (next 4 digits)
Value range: 0000 ... 9999
Factory setting: device ID
7.06 Using EasyActions
Values: off, on
Factory setting: on
* The value range is dependent on the sensor
measuring range and other parameters!

6.2.3 Motor protection

Excess current
The motors are protected against excess current
by thermal motor protection relays. The trigger
current must be set directly on the motor protec-
tion relay (Fig. 2 – 8, pos. 6).
Excess current leads to deactivation of the pump,
an error message on the switchgear, and activa-
tion of the SSM and ESM (of the affected pump).
After the reason for the fault has been rectified,
the motor protection relay must be manually reset
and the fault acknowledged on the switchgear.
Minimum current
In switchgear up to the 12 A version, an option is
provided (which can be activated) for monitoring
the minimum current flow of the motors (uninter-
rupted pumping of fluid by the pump). To do this,
internal motor current measurement should be
activated (menu 5.69 to "on") and the rated motor
current set using the potentiometers (Fig. 2 – 8,
pos. 8). The adjusted value can also be read via the
menu:
• Pump 1: Menu 4.25
• Pump 2: Menu 4.26
• Pump 3: Menu 4.27
54
Display
RISK OF FATAL INJURY due to dangerous
electrical voltage!
The switchgear must be connected and
switched on whilst adjusting in order to read the
currently set value on the display.
There is a risk of fatal injury due to electric
shock!
Adjustment must only be carried out by a quali-
fied electrician using an insulated screwdriver!
If the current falls below the minimum current
value, this leads to deactivation of the pump, an
error message on the switchgear, and activation of
the SSM and ESM (of the affected pump). After the
reason for the fault has been rectified, the fault
must be acknowledged on the switchgear.

6.2.4 Insulation monitoring (in the CPI version only)

For application in the mains form IT (French: Isolé
Terre), the device can be fitted with an insulation
monitoring device at the factory. On every pump
that is switched on, the insulation between the
active conductors and the earth potential is mon-
itored.
If an insulation fault occurs, the affected pump
cannot be switched on. An error message is dis-
played and the SSM and ESM (of the affected
pump) are activated. After the reason for the fault
has been rectified, the fault must be acknowl-
edged on the switchgear.
WILO SE 06/2018