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UMC100-FBP
Universal Motor Controller
UMC100-FBP
Technical Description
FieldBusPlug / Issue: 03.2012
Example:
The following requir
ements shall be fulfilled:
•
Switch S1 has the following positions: Remote/Local/Test Position/Off.
•
(Req. 1) If the switch is in position
Local
the UMC can only be controlled locally (digital inputs and LCD)
but not started via bus. But it shall be possible to stop the motor also via bus.
•
(Req. 2) In position
Auto
the DCS can control the UMC. Locally only a stop command can be issued.
•
(Req. 3) In position
Off
the motor cannot be started at all
•
(Req. 4) Position
Test
is for commissioning purposes and switches the UMC in simulation mode.
•
(Req. 5) If there is a bus fault the UMC shall automatically go into local mode and allows starting/stop-
ping via the LCD panel and the digital inputs (as in position
Local
).
The diagram below shows the simplified circuit diagram:
L1, L2, L3
3
Contactor
Supply
(e.g. 230VAC)
K1
k1
DOC
DO0
DO1
DO2
24VDC
10 11
5
7
8
9
24VDC
DO3
12
13 14 15 16 17 18
DI0 DI1 DI2 DI3 DI4 DI5
UMC100
UMC-
PAN
Fieldbus
Plug
0V
Fwd Stop
S1
GND
(24VDC)
M
3
Remote
Local
Sim
Off
From the requirements you can see that the three control places Digital Inputs, Fieldbus and LCD are
used. Furthermore start/stop commands from the different control places shall be blocked or released
depending on the Fieldbus and S1 status. Therefore the different modes can be used.
To read in the S1 commands the three multifunction inputs DI0, DI1 and DI2 are used.
Their configuration is as follows:
•
Multifunction In 0 = Force Local (NO): This input activates local 2 mode if the user wants to ensure that
the DCS cannot control the motor (Req 1)
•
Multifunction In 1 = Test Position (NO): This input activates simulation (Req. 4)
•
Multifunction In 2 = Stop: Stop (NO) is dominant and no start is permitted if the input is active (Req. 3)
For the Remote position no input is needed, because if the UMC is not in local mode, it is automatically in
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