Pressure-Controlled Pump With Cascade - Siemens G120P Technical Manual

Variable speed drive
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7.11 Pressure-controlled pump with cascade

Parameter
Value
p0730
r2379.0
p0731
r2379.1
p0732
r2379.2
p756[0]
0
p0840
r722.0
p1200[0]
1
p1210
26
p2200[0]
1
p2201[0]
50%
p2253[0]
p2201
p2257
30s
p2258
30s
p2264[0]
r755[0]
p2265
10 s
p2267
120%
p2268
-20%
p2293
30 s
p2370
1
p2371
4
p2372
1
p2373
20 %
p2374
30 s
p2375
30 s
p2376
25 %
Siemens
Building Technologies
Description
Signal source for digital output 0: Control external motor 1 via DO 0
Signal source for digital output 1: Control external motor 2 via DO 1
Signal source for digital output 2: Control external motor 3 via DO 2
Unipolar voltage input (0...10 V)
ON / OFF (OFF1)
Flying restart always active (start in setpoint direction)
Acknowledging all faults and restarting for an ON command
Technology controller enable
Technology controller fixed value 1
Set the pressure setpoint to suit the application. This example uses a 0 to 4 bar sensor (e.g. QBE64).
Technology controller setpoint 1
Technology controller setpoint ramp-up time
Technology controller setpoint ramp-down time
Technology controller actual value
Technology controller actual value filter time constant
Technology controller upper limit actual value
Technology controller lower limit actual value
Technology controller ramp-up/ramp-down time
Activate closed-loop cascade control
Configuration and motor connection sequence: 3 motors with identical power output
Motor selection mode: When a motor is connected, the motor with the least operating hours is
connected. When a motor is disconnected, the motor with the most operating hours is shut down.
Switch-in threshold
Delay time for connection of external motors
Delay time for disconnection of external motors
Overcontrol threshold
Application examples
Pressure-controlled pump with cascade
7
77 | 98
A5E36496664A_d
2016-03-17

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