System test (cont.) – Rockwell Automation 7000A PowerFlex Medium Voltage AC Drive - Air-Cooled (A Frame) User Manual
Page 206
4-52 Commissioning
7000A-RM001A-EN-P – January 2011
7000 “A” Frame
System Test (cont.)
Example:
• SpdCmd Anlg Inp (4-20mA) Reference command Input Scaling
The customer 4-20 mA speed input is coming to the Current Loop
Receiver on the ACB, and they want the maximum input to represent
60 Hz.
1. Reference Command Remote Maximum (Ref Cmd R Max)
should be set for 60 Hz.
2. The Reference Select parameter should be set to ‘Remote 4-20
mA’.
3. Have the source supply 20 mA to the drive. This should be
verified with a multimeter connected in series with the current
source. Ensure that you are in Remote mode with the selector
switch, and look at the parameter Speed Command In, which
will represent that 20 mA signal.
4. Ensure that it reads 60 Hz. If it does not, you can increase the
Ref Cmd R Max value until this parameter reads 60 Hz.
•
SpdCmd DPI (Digital) Reference command Input Scaling
The maximum value for a digital reference command is 32767;
the minimum value is 0. Values that are negative or out of
bounds will result in the drive slowing down to minimum speed.
Analog
Outputs
Review the electrical schematics to understand which meters or
signals the user expects out of the analog output ports on the ACB
Board.
The PV550 display screens are given as an example. The actual
screen data may differ.
To assign a parameter to an analog output,
ensure that you are at least in Advanced
access. From the main screen, press SETUP
(F8), and use the down arrow to highlight
Analog. Press Enter.