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Universal Motor Controller
UMC100-FBP
Technical Description
Sample Application for using the Multifunction Inputs
The following diagram shows how to realise a dry-pump protection application. When the motor is start-
ing there is no pressure. It takes some time until the pressure reaches its normal value. In this example we
assume that the pressure has to appear within 4 seconds, otherwise the pump can be destroyed.
To realize this function the multifunction input can be parameterised in the following way:
• Set the delay time to 4s
• Set the function to "Fault when motor is running"
• Define a meaningful message e.g. "Dry run"
If the pressure switch does not monitor "pressure present" within 4s (or when the pressure signal disap-
pears for more than 4s during operation) the internal fault signal is set and the motor is stopped. The error
message "Dry run" appears as a fault message.
UMC100-FBP
Pressure switch
24 V DC
A second example on how to use the multifunction inputs is shown in section "Start-
ing and Stopping the Motor".
T1
T2
Ca
Cb
READY
MOT.ON
FAULT
Relay
230VAC
1A
Inputs
Power
24V
24VDC
0
24
DC
DI
DI
V
V
Out
0
1
10
11
12
13
14
- 68 -
5
6
7
8
9
UMC100
5
6
7
8
9
DO
DO
DO
DO
DO
C
C
0
1
2
DI
DI
DI
DI
2
3
4
5
15
16
17
18
FieldBusPlug / Issue: 03.2012
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