English
Installation and operating instructions Ixens, Ixens Bloc
81
Manual or external pump cycling is possible five seconds after the last
pump cycling, at the earliest.
Activation of external pump cycling simultaneously deactivates
internal time-controlled pump cycling.
Pump cycling can be described schematically as follows (see also
Fig. 21):
• Pump 1 turns (black line)
• Pump 2 is switched on at minimum speed and soon afterwards
reaches the setpoint (grey line)
• Pump 1 is switched off
• Pump 2 continues to run until the next pump cycling
NOTE:
In manual control mode, a slight increase in flow can be expected.
Pump cycling is depending on the ramp time and generally lasts 2 s. In
auto control, there may be minor fluctuations in the delivery head.
However, pump 1 adjusts itself to the changed conditions. Pump
cycling is dependent on the ramp time and generally lasts 4 s.
Behaviour of the inputs and outputs
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 in 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
Fault and run signals
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:
The pump could run, there is no fault.
“Operation” means:
Motor turning.
“Mains on” means:
Mains voltage is present.
• The contact must be made to each pump for individual run signals.
Operating possibilities at the slave
pump
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.
Fig. 21: Pump cycling
t
Δp
Pump 1
Pump 2
Summary of Contents for IXENS
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Page 75: ...Français Notice de montage et de mise en service Ixens Ixens Bloc 67 ...
Page 137: ...English Installation and operating instructions Ixens Ixens Bloc 129 ...
Page 203: ...Italiano Istruzioni di montaggio uso e manutenzione Ixens Ixens Bloc 195 ...
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