Controlli W500H, Руководство пользователя

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Rev. d 01/1 12 DMP052E
OPERATING MODES
The equipment is able to operate according to three different operating modes, which are:
0) Comfort – all loops are ON during control (including the Limit Loops).
1) Reduced – the Control Loops operate on a reduced Set point. The Limit Loops remain ON with
their set point.
2) Stop – all loops are 0 (including the Limit Loops).
The Operating Mode acts in parallel on all Control Loops also in Mode D4 (sequence controller), in
which Comfort and Reduced modes have the same meaning.
The passage from an Operating Mode to another can take place as follows:
- Using the appropriate Manual override key
Ovr
-
. If it is pressed repeatedly, it is possible to
access manually to one of the three modes. This function is active in each Control Loop, by setting
ABO = On. For further details see page 11.
- From Time schedule: it changes automatically into one of the three modes. This function is
enabled on each Control Loop, by setting ABO = On.
- Through digital input D.i.1 and/or D.i.2 (except modes A3 and D3); if enabled (AE1 = On and/or
AE2 = On), it is possible to pass from Stop (open contact) to another mode, i.e.:
Changeover from digital inputs with dry contact operates on all Loops whose function is enabled
(AE1 or AE2 with value On). Such operation has a priority with respect to other changeovers (from
clock or Manual override button). The enabled Operating Mode is signalled by a proper Led
Mode
on the front panel, as follows:
Through the LinkBus it is possible to share the override mode, although a local override on the
single device has always priority with respect to the shared mode.
The Stop mode in Mode A4 produces a 5,5 Vdc output.
The default operating mode is determined by the
Time Schedule if the clock is present, otherwise
the default mode is Comfort. The manual override key is disabled if the device is switched of and
on again. For further detail see the three following paragraphs.
MANUAL OVERRIDE KEY FOR THE OPERATING MODE
It is possible to carry out a manual override of the Operating Mode by pushing the proper key Ovr
-
inside the Operating Mode Programme Menu accessed by holding the Set key down for 5
seconds. The manual override cancels the mode determined by the clock and it is signalled by the
Led
Ovr on the front panel. The number of clicks on such key, states cyclically the setting, passing
from Comfort, to Reduced and Stop modes, then returning to Automatic mode
.