Other Functions - salmson LRE Serie Instalacion Y Puesta En Servicio

Slave pump behaviour
Master pump behaviour
6.4

Other functions

Disabling or enabling a pump
Pump kick
Installation and operating instructions LRE, JRE
Leaving emergency operation at the slave pump:
• Factory settings restored
During a communication interruption on the (former) slave, if emer-
gency operation is discontinued because the factory settings have
been restored, the (former) slave 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.
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 mains off, mains on, the (for-
mer) 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.
This function is only available with dual 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 an error 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.
NOTE:
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.
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.
The reason for the standstill is not important (Manual off, External off,
Fault, Adjustment, Emergency operation, BMS setting). This proce-
dure is repeated until the pump is switched back on via a control
mechanism.
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