Rockwell Automation Publication 22C-UM001J-EN-E - January 2017 83
Programming and Parameters Chapter 3
Advanced Program Group
A141 [Purge Frequency] Related Parameter(s): P038, P039, P040, T051...T054
Provides a fixed frequency command value when T051...T054 [Digital Inx Sel] is set to 1 “Purge”. An active purge input will override speed command as shown in the flowchart on
page 37.
Values Default: 5.0 Hz
Min/Max: 0.0/320.0 Hz
Display: 0.1 Hz
A142 [Internal Freq] Related Parameter(s): P038, T051...T054
Provides the frequency command to the drive when P038 [Speed Reference] is set to 1 “Internal Freq”. When enabled, this parameter will change the frequency command in “real
time” using the digital speed keys when in program mode.
If T051
...T054 [Digital Inx Sel] is set to 16 “MOP Up” or 17 “MOP Down” this parameter acts as the MOP frequency reference if P038 [Speed Reference] is set to 1 “InternalFreq”.
Values Default: 60.00 Hz
Min/Max: 0.00/320.00 Hz
Display: 0.01 Hz
IMPORTANT
Once the desired command frequency is reached, the Enter key must be pressed to store this value to EEPROM memory. If the ESC key is used before the
Enter key, the frequency will return to the original value following the normal accel/decel curve.
A143 [Preset Freq 0]
(1)
Related Parameter(s): P038, P039, P040, T051...T052, A147, A148
A144 [Preset Freq 1]
A145 [Preset Freq 2]
A146 [Preset Freq 3]
Provides a fixed frequency command value when T051
...T052 [Digital Inx Sel] is set to 8 “Preset Freq”.
An active preset input will override speed command as shown in the flowchart on page page 37.
Values A143 Default:
(1)
A144 Default:
A145 Default:
A146 Default::
0.0 Hz
5.0 Hz
10.0 Hz
20.0 Hz
Min/Max: 0.0/320.0 Hz
Display: 0.01 Hz
(1) To activate A143 [Preset Freq 0] set P038 [Speed Reference] to option 4 “Preset Freq”
(2) When a Digital Input is set to “Accel 2 & Decel 2”, and the input is active, that input overrides the settings in this table.
Input State of Digital In 1
(I/O Terminal 05 when
T051 = 8)
Input State of Digital In 2
(I/O Terminal 06 when
T052 = 8)
Frequency Source Accel / Decel Parameter Used
(2)
0 0 A143 [Preset Freq 0] [Accel Time 1] / [Decel Time 1]
1 0 A144 [Preset Freq 1] [Accel Time 1] / [Decel Time 1]
0 1 A145 [Preset Freq 2] [Accel Time 2] / [Decel Time 2]
1 1 A146 [Preset Freq 3] [Accel Time 2] / [Decel Time 2]