salmson LRE Serie Instalacion Y Puesta En Servicio página 80

English
Fault and run signals
Operating possibilities at the slave
pump
6.3.3 Operation during interruption of
communication
70
ESM/SSM:
• A collective fault signal (SSM) can be connected to the master for a
central control centre.
• In this case, the contact may only be made to the master.
• The display is for the whole unit.
• This signal can be programmed on the master (or using the IR-Moni-
tor/IR-Stick) as an individual fault signal (ESM) or a collective fault
signal (SSM) in menu <5.1.5.0>.
• The contact must be made to each pump for individual fault signals.
EBM/SBM:
• A collective run signal (SBM) can be connected to the master for a
central control centre.
• In this case, the contact may only be made to the master.
• The display is for the whole unit.
• This signal can be programmed on the master (or using the IR-Moni-
tor/IR-Stick) as an individual fault signal (ESM) or collective fault sig-
nal (SSM) (menu <5.1.6.0>).
• The functions – "Readiness", "Operation", "Mains-On" – from EBM/
SBM can be set at <5.7.6.0> on the master.
NOTE:
"Readiness" means:
"Operation" means:
"Mains on" means:
• The contact must be made to each pump for individual run signals.
The only settings that are possible at the slave are "External Off" and
"Disable/enable pump".
NOTE:
If an individual motor is switched voltage-free in a double pump, the
integrated dual pump management is deactivated.
When communication is interrupted between two pump heads in dual
pump operation, both displays show the error code "E052". Both
pumps behave as single pumps for as long as the interruption lasts.
• Both electronic modules report the malfunction via the ESM/SSM
contact.
• The slave pump runs in emergency operation (manual control) mode
according to the emergency operation speed previously set on the
master (see menu items <5.6.2.0>). The factory setting for the emer-
gency operation speed is about 60% of the pump's maximum speed.
For 2-pole pumps: n = 1850 rpm.
• After acknowledging the fault display, the status display will be
shown on both pump displays for the duration of the communication
interruption. This resets the ESM/SSM contact at the same time.
• The slave pump display will show the symbol (
emergency operation).
• The (former) master pump continues to have control. The (former)
slave pump follows the emergency operation settings. Emergency
mode can only be exited by triggering the factory setting, eliminating
the interruption in communication or by switching the mains off/on.
NOTE:
During communication interruptions, the (former) slave pump cannot
run in auto control, since the differential pressure sensor has switched
to the master. When the slave pump is running in emergency opera-
tion mode, changes cannot be made to the electronic module.
• After the end of the communication interruption, the pumps will
resume regular dual pump operation as before the malfunction.
The pump could run, there is no fault.
Motor turning.
Mains voltage is present.
– pump running in
Salmson 11/2017