Figure 82: Connections for speed control over voltage signal from PLC or BMS
Table 13: Parameters for speed control from external potentiometer, PLC or BMS
Parameter number
Description
Set to
[1-00]
Configuration Mode
Open Loop
[3-02]
Minimum Reference
Set to value corresponding to desired
speed at the minimum reference
[3-03]
Maximum Reference
Set to value corresponding to desired
speed at the maximum reference
[3-15]
Reference 1 Source
Analog Input 53
[6-12]
Terminal 53 Low Current
4 mA
[6-13]
Terminal 53 High Current
20 mA
[6-14]
Terminal 53 Low Ref./Feedb.Value
Set to value corresponding to the
commanded speed at the low current.
[6-15]
Terminal 53 High Ref./Feedb.Value
Set to value corresponding to the
commanded speed at the high
current.
[6-17]
Terminal 53 Sensor Fault (North
America) / Live Zero (International)
Disabled
[2000]
Feedback 1 Source
No Function
NOTE: For speed control over voltage signal:
• Set switch A54 = U (left position).
• Set [3-15] Reference 1 Source = Analog Input 54.
• Set [6-20] Terminal 54 Low Voltage = 0 V and [6-21] Terminal 54 High Voltage = 10 V.
• Set [6-24] Terminal 54 Low Ref./Feedb.Value to value corresponding to the command
speed at the low voltage and [6-25] Terminal 54 High Ref./Feedb.Value to value
corresponding to the command speed at the high voltage.
• Set [6-27] Terminal 54 Sensor Fault (North America) / Live Zero (International) to
Disable.
Control from external PLC/BMS through Analog Input
The controller can be configured to accept either the process variable (e.g. actual
pressure) or setpoint from an external control source such as a PLC or BMS controller
through an analog input. The output from the external control device can be either a
voltage or current output signal. Be sure to set the analog input configuration switches
based on the type of output signal. When the process variable is supplied by the external
controller, the wiring connections are the same as used with the connections for speed
control from an external device through an analog input. When the setpoint or reference
is supplied to the controller from the external device both a transducer and the external
5 Electrical Installation
Aquavar
®
Intelligent Pump Controller - 150 HP to 600 HP INSTRUCTION MANUAL
71
Summary of Contents for Aquavar
Page 1: ...INSTRUCTION MANUAL IM273 Rev C Aquavar Intelligent Pump Controller 150 HP to 600 HP...
Page 2: ......
Page 171: ......
