DRIVE PROGRAMMING
Setting Operating Parameters
49
8.
Deceleration Time [SET–12]:
Enter a time in seconds to slow down from maximum frequency to stop.
Recommended defaults are 2 seconds for submersibles and 30 seconds for surface/boost pumps. This
setting is only effective when
Stop Mode [SET
–
16]
is set to
Decelerate
. Additional deceleration curves can be
added for more precise control through selected frequency ranges. Refer to
9.
Low Frequency Limit [SET–13]:
The lowest frequency (speed in Hz) allowed by the VFD in any mode.
10.
High Frequency Limit [SET–14]:
Enter the highest frequency (speed in Hz) allowed by the VFD in any
mode.
11.
PID Mode [SET–17]:
Enables or disables PID control, either direct or inverse.
12.
PID Feedback Source [SET–18]:
Selects an input terminal for PID Feedback source. Be sure to config
-
ure the terminal for the correct impedance.
13.
PID Feedback Unit [SET–19]:
Selects a measurement unit for PID feedback.
14.
Feedback Max [SET–20]:
Enter the maximum reading of the feedback source. This is used to scale the
sensor. For example: if using a 0–200 psi transducer, enter 200.
15.
PID Setpoint [SET–21]:
Enter the desired value for the drive to maintain in PID mode, running in Auto.
This parameter can also be changed through keypad control.
16.
PID Low Frequency Limit [SET–22]:
PID frequency output will be limited to this value.
17.
PID High Frequency Limit [SET–23]:
PID frequency output will be limited to this value.
18.
Language:
Select a desired language for the display. Press the
Menu
button and then press the
Back
but
-
ton. Use the
Down
keys to display
Set Language
.
19.
Clock:
Set current time and date. This setting is used to record real-time data for faults, parameter
changes, etc. Press the
Menu
button and then press the
Back
button. Use the
Down
keys to display
Set Time
.
Verify Control Terminal Settings
For each type of control hardware that has been connected to the system—sensors, switches, BAS, etc.,
make sure that the matching function parameters have been identified for the input terminals. For more
information, refer to
“Example Configurations” on page 43
or to
“Parameter Descriptions > I/O Menu” on
Enter or Verify Optional Settings
If using any of the optional features available in the system, make sure that all related parameters are set for
the desired operation. Refer to the application descriptions in
these features:
•
Automation features:
“Standard Operation with an Automated Control System” on page 66
•
Protection features:
“Protection Features” on page 75
•
Communications features:
Refer to
.
•
Multi-Motor applications:
“Multi-Motor (MMC) Relay Control for Pump Applications” on
.
For more details on individual parameter settings, refer to
“Parameter Reference Tables” on page 115
.
Содержание Cerus X-Drive
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