Other Functions - Wilo Stratos GIGA Serie Instrucciones De Instalación Y Funcionamiento

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Master pump behavior
6.4

Other functions

Disabling or enabling a pump
Pump exercise
18
NOTE:
In the absence of a sensor signal, the (former) slave will run at maximum
speed. To prevent this, the (former) master's differential pressure sen-
sor signal can be looped through. When the double pump is operating
normally, it is not affected by sensor signals pending on the slave.
• Mains off, Mains on
During a communication interruption on the (former) slave, if emer-
gency operation is discontinued due to mains off, mains on, the (for-
mer) slave will start up with the latest emergency operation settings
received from the master (for example, control mode with preset
speed or off).
Leaving emergency operation at the master pump:
• Factory settings restored
During a communication interruption on the (former) master, if the
factory settings are restored, it will start up with the factory settings
of a single pump. It will then run in p-c mode at about half the max-
imum delivery head.
• Mains off, Mains on
During a communication interruption on the (former) master, if emer-
gency operation is discontinued due to power cycling (mains off,
mains on), the (former) master will start up with the latest settings it
has from the double pump configuration.
A particular pump can generally be enabled or disabled in terms of
operation in menu <5.1.4.0>. A disabled pump cannot be used in
operation until the disabling has been manually lifted.
The setting can be made at each pump directly or over the infrared
interface.
A pump exercise will be carried out after the end of a period of 24 h
and 2 minutes after the pump or a pump head has been in standstill.
The reason for the standstill does not matter (Manual off, Ext. off,
Fault, Adjustment, Emergency operation, BMS setting). This proce-
dure is repeated until the pump is switched back on via a control
mechanism. The "pump exercise" function cannot be disabled via the
menu or any other interfaces. As soon as the pump is switched on via
the control system, the countdown to the next pump exercise is
interrupted.
The duration of a pump exercise is 5 seconds. The motor turns at min-
imum speed during this period. If both pump heads of a double pump
are switched off, i.e. by Ext. off, then both run for the period of 5 sec-
onds. The pump exercise also takes place in "Main/standby operation"
operating mode if the pump cycling takes more than 24 h. A pump
exercise is also attempted even in case of a fault.
The remaining operating time until the next pump exercise can be
seen in menu <4.2.4.0>. This menu is only available when the motor is
stopped. The number of pump exercises can be seen in menu
<4.2.6.0>.
All faults, with the exception of warnings, that occur during the pump
exercise switch the motor off. The corresponding fault code is shown
on the display.
WILO SE 01/2014