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Universal Motor Controller
UMC100-FBP
V 6
Technical Description
Example:
The following requirements shall be fulilled:
•
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. ) 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 simpliied circuit diagram:
UMC-
PAN
Fieldbus
Plug
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 DI are used.
Their coniguration is as follows:
•
Multifunction In 0 = Force Local (NO): This input activates local 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 = 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
Auto mode
Finally it is necessary to conigure from which control places the motor can be started in the different
FieldBusPlug / Issue:08.009
GND
(24VDC)
24VDC
DO3
12
10 11
13 14
DI0
Local
Remote
0V
24VDC
- 49 -
Contactor
Supply
(e.g. 230VAC)
K1
DOC DO0
DO1
DO2
5
7
8
9
UMC100
15
16
17
18
DI1 DI2 DI3 DI4 DI5
Sim
Off
Fwd Stop
S1
L1, L2, L3
3
k1
3
M
UMC100-FBP
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