Chapter 5 Applications; Pump / Pressure Control - Brainchild BTC-2500 User Manual

Chapter 5 Applications

Chapter 5 Applications

5 1 Pump / Pressure Control

5 1 Pump / Pressure Control
A regulated water supply system is widely used in residence, water plant, A regulated water supply system is widely used in residence, water plant,
chemical plant, electrical plant, semiconductor plant ... etc. Taking the chemical plant, electrical plant, semiconductor plant ... etc. Taking the
advantage of PUMP function, the BTC-2500 can be used for these advantage of PUMP function, the BTC-2500 can be used for these
applications to achieve an applications to achieve an
example: example:
BTC-2500-4137XX BTC-2500-4137XX
1
2
A1
IN1
OUT1
4-20 4-20
mA mA
4-20 mA 4-20 mA
Speed Speed
Control Control
3 3
AC AC
AC
Inverter
The water pressure is required to be controlled at 10 Kg/cm , to achieve this, The water pressure is required to be controlled at 10 Kg/cm , to achieve this,
the following devices are used for this example: the following devices are used for this example:
Inverter: To supply a variable frequency AC voltage to the motor. Inverter: To supply a variable frequency AC voltage to the motor.
Motor: A 3- Motor: A 3- induction motor. induction motor.
Pump: An economical type Pump: An economical type
Pressure Sensor: A three-wire or two-wire type pressure transducer with 0-20 Pressure Sensor: A three-wire or two-wire type pressure transducer with 0-20
Kg/cm Kg/cm
Pressure Reservoir: Providing a smoother pressure for the system. Pressure Reservoir: Providing a smoother pressure for the system.
BTC-2500-4137XX: Order a BTC-2500 with standard input, 4-20 mA output 1, BTC-2500-4137XX: Order a BTC-2500 with standard input, 4-20 mA output 1,
20V DC output 2 for sensor power. 20V DC output 2 for sensor power.
82
economical economical yet yet versatile versatile
2
Kg/cm
Pressure Pressure
Sensor Sensor
C
OUT2
DC20V
Motor
2
range. range.
solution. Here is an solution. Here is an
Pressure Pressure
Reservoir Reservoir
Pump
Water
2
UM25001C
PUMP: A Cost Effective PUMP: A Cost Effective
yet Perfect Solution yet Perfect Solution
Figure 5.1 Figure 5.1
A water Supply System A water Supply System
Water