English
Installation and operating instructions Wilo-Stratos GIGA, GIGA-D, GIGA B
(11-22kW)
83
Master pump behaviour
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
Δ
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 mains off, mains on, the
(former) master will start up with the latest settings it has from the
double pump configuration.
6.4
Other functions
Disabling or enabling a pump
A particular pump can generally be enabled or disabled in terms of oper-
ation 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.
This function is only available with double pump operation. If a pump
head (master or slave) is disabled, the pump head is no longer ready
for operation. In this state, errors are identified, displayed and
reported. If a fault occurs in the enabled pump, the disabled pump
does not start up.
However, the pump kick is still performed if it is activated. The interval
to the pump kick starts with the disabling of the pump.
NOTICE:
If a pump head is disabled and operating mode “Parallel operation” is
activated, it cannot be ensured that the desired duty point will be
achieved with just one pump head.
Pump kick
A pump kick takes place after a configurable time has elapsed since a
pump or pump head stopped operating. The interval can be set man-
ually in menu <5.8.1.2> on the pump for a period of between 2 h
and 72 h, in 1 h steps.
Factory setting: 24 h.
NOTICE:
If the menu <5.8.x.x> cannot be selected, no configurations can be
made. The factory settings values apply.
The reason for the standstill is not important (Manual off, Extern 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 kick function can be disabled via menu <5.8.1.1>. As soon
as the pump is switched on via the control system, the countdown to
the next pump kick is interrupted.
A pump kick lasts 5 seconds, during which the motor turns at the set
speed. The speed can be set between the minimum and maximum
permissible pump speeds in menu <5.8.1.3>.
Factory setting: minimum speed.
If both pump heads on a double pump are switched off, for example,
via Extern off, both will run for 5 seconds. Pump kick takes place even
in “main/standby operation” mode if pump cycling takes longer than
the configured time via the <5.8.1.2> menu.
NOTICE:
A pump kick is also attempted even in the event of a fault.
The remaining operating time until the next pump kick can be read off
the display in menu <4.2.4.0>. This menu is only available when the
motor is stopped. The number of pump kicks can be read off in
menu <4.2.6.0>.
Summary of Contents for STRATOS GIGA
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