ABB i-bus
®
KNX
Operation
FCC/S 1.X.X.1 | 2CDC 508 200 D0211 Rev A 355
9
Operation
9.1
Manual operation
Special device functions can be undertaken using the operating keys on the membrane keypad.
Operation via the membrane keypad is available and functions identically for all devices FCC/S
1.x.2.1.
For a complete overview of the control elements, see Product Overview.
Manual operation facilitates on-site operation of the device. Manual operation is enabled as stan-
dard and can be switched on and off using the
Manual operation
button.
Manual operation can be permanently deactivated in the ETS.
The group object
Status Manual operation
indicates whether manual operation is enabled/dis-
abled.
Switching on manual operation:
► Press and hold the
Manual operation
button for 5 seconds until the yellow LED lights up contin-
uously.
Switching off manual operation:
► Briefly press the
Manual operation
button.
ð
The yellow LED goes off.
The device is in KNX operation after connection to the KNX, bus voltage recovery, ETS download
or ETS reset. The LED is off.
Note
The LED remains of if manual operation is disabled in general or disabled via the group object
Enable/disable manual operation
.
Switchover from
KNX operation
to the
Manual operation
mode does not occur.
Note
The control values calculated by the controller or received via KNX are overridden and ignored
during manual operation.
Changes due to manual operation are valid only while manual operation is active.
Manual operation cannot override forced operation or a safety state of the device.
Any override of the individual functions becomes effective only when they are changed for the
first time by pressing a button. Until then, the outputs continue to react to values received from
the controller or via KNX.
Another consequence of this is that the fan, unless it was adjusted by a press of the fan button,
will continue to follow the valve control value if this is adjusted via manual operation.