LAFERT HP Combi Flow - Control Terminal Connections

Version 3.11 | HPI Combi Flow User Guide | 23www.lafert.com
4.7. Control Terminal Connections
4.7.1. +24VDC Input / Output
When the mains power is applied to the drive, terminal 1 provides a +24VDC output, maximum load 100mA. This may be used to
activate digital inputs or provide power to sensors.
When no mains power is applied to the drive, the drive control electronics may be powered from an external +24VDC source. When
powered in this way, all analog and digital I/O and communication functions remain operative, however the motor may not be
operated, which allows safe testing and commissioning of the installation without risk of high voltage being present. When powered in
this way, the drive requires up to 100mA.
4.7.2. Digital Inputs
Up to five digital inputs are available. The function of the inputs is defined by parameters P1-12 and P1-13, which are explained in
section 8. Control Terminal Functions on page 38.
4.7.3. Analog Inputs
Two analog inputs are available, which may also be used as digital Inputs if required. The signal formats are selected by parameters
as follows:
Analog Input 1 Format Selection Parameter P2-30.
Analog Input 2 Format Selection Parameter P2-33.
These parameters are described more fully in section 8.1. Digital Input Configuration Parameter P1-13 on page 38.
The function of the analog input, e.g. for speed reference or PID feedback for example is defined by parameters P1-12 and P1-13.
The function of these parameters and available options are described in section 8. Control Terminal Functions on page 38.
Example Connections for Analog Input
Local Potentiometer Connection - AI1 2-wire Analog Voltage or Current signal
+24V DC
DI 1 DI 2 DI 3
+10V DC
AI 1
0V / COM
AO 1
0V / COM
DI 5
AO 2
STO+
STO-
+24V DC
DI 1 DI 2 DI 3
+10V DC
AI 1
0V / COM
AO 1
0V / COM
DI 5
AO 2
STO+
STO-
1 2 3 4 5 6 7 8 9
10
11
12
13
1 2 3 4 5 6 7 8 9
10
11
12
13
0-10 V
10-0 V
-10-10 V
0/4-20 mA
20-4 mA
+
V/A
-
2-wire or Loop Powered Transducer 3-wire Transducer
+24V DC
DI 1 DI 2 DI 3
+10V DC
AI 1
0V / COM
AO 1
0V / COM
DI 5
AO 2
STO+
STO-
+24V DC
DI 1 DI 2 DI 3
+10V DC
AI 1
0V / COM
AO 1
0V / COM
DI 5
AO 2
STO+
STO-
1 2 3 4 5 6 7 8 9
10
11
12
13
1 2 3 4 5 6 7 8 9
10
11
12
13
0/4-20 mA
+
24 V DC
Sensor
-
0/4-20 mA
+
24 V DC
Sensor
-
4
Electrical Installation