Extra Possibilities Lm.60I; Pre-Defined Position / Independent Control - Fancom LM.60i Manual

LM.60i
5.

Extra possibilities LM.60i

5.1.

Pre-defined position / independent control

If the control signal or supply voltage 24 Vac fails the LM.60i can
independently control the air inlet position. This can be a calculated position
or a pre-defined position. This pre-defined position is settable (see chapter
Adjusting), the standard factory setting is 50%.
No control signal (voltage)
If the control signal fails, the air inlet will open fully (10-0V control signal) or
close fully (0-10V control signal).
No control signal (communication) On the internal display appears "A4".
If the LM.60i is part of an IO-network, but communication is interrupted,
control can continue independently under the following conditions:
A. A temperature sensor is connected.
B. The control computer has had the chance to transmit a control
value, and also a setpoint and bandwidth.
The intelligent module will then calculate the air inlet position based on the
temperature measurement and the settings. In this case "L" will appear on
the internal display when the key on the print is pushed.
If these conditions cannot be met, the control will go to a pre-defined
position. In this case "U" will appear on the internal display.
Attention! Not all control computers are able to over transmit
these settings, check the manual of the control computer
concerned.
Power failure (Powerfail)
If the regular 24Vac power fails, the LM.60i will go to the pre-defined
position, when an internal emergency battery (option) has been installed.
If an external emergency power supply (UPS) is used instead of an internal
emergency battery, the regular 24Vac power cannot fail. This UPS has to be
provided with powerfail PF- (Normally open) output contact that will short the
"PF'-input on the LM.60i, when the regular power fails. The LM.60i will go to
the pre-defined position.
In this case "A3" will appear on the internal display.
A5911664 - GB 100503
5. Extra possibilities
12