salmson SIE Serie Instrucciones De Instalación Y Funcionamiento página 58

English
Operation during interruption of
communication
6.3.2 Behaviour in dual pump operation
Pump cycling
Behaviour of the inputs and outputs
52
During an interruption of communication, both displays show the
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.
• Regardless of the previously set type of operation, the master will
take over the control.
• The slave pump runs in emergency operation (controller) according to
the settings in the menu <5.6.2.0> (standard setting: maximum
speed).
• 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 (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 cannot run in
auto control, since the pressure sensor is switched to the master.
• After the end of the communication interruption, the pumps will
reassume regular dual pump operation as they did before the mal-
function.
In dual pump operation, pump cycling is done every 24 h (adjustable).
The pump cycling can be triggered by:
• Internally, time controlled (menu <5.1.3.2> +<5.1.3.3>)
• Externally, (menu <5.1.3.2>) by a positive flank at the "aux" contact
• Manually, (menu <5.1.3.1>)
A manual or external pump cycling is possible 5 seconds after the last
pump cycling at the earliest.
The activating of the external pump cycling simultaneously deacti-
vates the internally time-controlled pump cycling.
Actual value input In1, setpoint input In2
• At the master: acts on the whole unit.
"External Off"
• Set at the master (menu <5.1.7.0>): depending on the setting at menu
<5.1.7.0>, acts only on the master or on the master and the slave.
• Set at the slave: acts only on the slave.
04/2009