salmson LRE Serie Manual De Instalación Y Puesta En Servicio página 66

English
Fault and run signals
Operating possibilities at the
slave pump
6.3.3 Operation during interruption of
communication
59
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/PDA) 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 IR-Monitor (or using the PDA)
as an individual fault signal (ESM) or collective fault signal (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.
• The contact must be made to each pump for individual run signals.
The only settings that are possible at the slave are "Extern Off" and
"Disable/enable pump".
During an interruption of communication, both displays show fault
code "E052". Both pumps behave as single pumps for as long as the
interruption lasts.
• Both 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 n = 1850/925 rpm for 2/4 pole.
• 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. It is only pos-
sible to exit emergency operation by actuating the Works setting or,
after ending the communication interruption, by shutting power off
and on again.
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 is running in emergency operation
mode, changes cannot be made to the module.
• After the end of the communication interruption, the pumps will
resume regular dual pump operation as before the malfunction.
- Pump running in
Pompes Salmson 04/2011