Version 1.4
Application Guide PumpDrive 2 Eco
2016-10-20
2016-11-11 PDrv2-Eco_Application_Guide_rev_1_4.docx
Page 38 of 48
16
17
DO
GND
16
17
16
17
GND
DI-EN
+24V
GND
DI3
DI2
DI1
+24V
DICOM
AO-GND
AO
AIN2
NO
+24V
GND
COM
+24V
B1
B2
B3
B4
B5
B6
B7
B8
B9
B10
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
GND
GND
AIN1
+24V
18
+24V
DI
18
11
DO
11
11
70
80
4
D
C
B
A
4.
Pump functionality
4.1
Closed loop control
4.1.1
Closed loop control: dynamic differential pressure set point compensation based on flow rate estimation
A constant differential pressure of 4 bar is needed. PumpMeter is used as a differential pressure sensor in the measurement range of -1
… 10 bar. PumpMeter is connected by Modbus to the M12 Module of the drive. The set point is given by the display. For the optimal
energy saving the “dynamic differential pressure set point compensation based on flow rate estimation” is activated. The nominal flow is
80 m³/h. The pipe friction losses are roundabout 1 bar. All parameters needed for the flow estimation like pipe diameters are preset indi-
vidually for each pump size by the pump production when ordering a completely assembled pump, motor, drive.
Nr.
Parameter
Change value to
Pre-settings by fac-
tory
2)
3-6-1
Type of Control
3 = Differential Pressure
preset - see chapter
1
ServiceTool, Display
3-11-2-1
Minimum Pressure
-1.00 [bar]
Preset
ServiceTool
3-11-2-2
Maximum Pressure
10.00 [bar]
Preset
ServiceTool
3-11-2-3
Pressure Unit
bar
Preset
ServiceTool
3-11-3-1
Minimum Flow rate
0.00 [m³/h]
Preset
ServiceTool
3-11-3-2
Maximum Flow rate
100.00 [m³/h]
9999.99 [m³/h]
ServiceTool
3-11-3-3
Unit Flow rate
m³/h
Preset
ServiceTool
1-3-2
Setpoint (Closed-loop Control)
4.00 [bar]
preset acc. specified
Q,H
ServiceTool, Display
3-8-4-1
Function M12 Module Input A
1 = PMtr Suction/ Dis-
charge Pressure
Preset
ServiceTool, Display
3-9-8-1
Flow Rate Estimation
1 = On
Preset
ServiceTool, Display
3-5-2-1
Pipe Diameter Suction Pressure Measuring
Point
30 mm
Preset
ServiceTool
Nr.
Function
16
Enable power electronic
17
Ground for digital inputs
11
System start with DI
1)
18
Alarm
4
Actual value: tailor-made bus cable for the connection of PumpMeter
to the M12 Module (color: black, female: straight, male: angled)
Nr.
Function
70
M12 Module: Double and multi pump operation
80
M12 Module: PumpMeter
A
M12 Module female A: connection PumpMeter (Modbus)
B
-
C
-
D
-
1 bar
4 bar
80 m³/h
PDrv 2 Eco
Or local
Or PLC
Drive
? p
A
4
