Table 1 – Rockwell Automation 20D PowerFlex 700S AC Drives with Phase II Control Programming Manual User Manual
Page 17

Rockwell Automation Publication 20D-PM001C-EN-P - July 2013
17
Drive Start-Up
Chapter 1
Table 1 - Common Causes of a Start Inhibit
Examine Parameter 156 [Start Inhibits]
Bit
Description
Action
1
No power is present at the Enable Terminal; TB2-16
Apply the enable
2, 3, 4
A stop command is being issued
Close all stop inputs
5
Power loss event is in progress, indicating a loss of the AC input voltage
Restore AC power
6
Data supplied by the power structure EEprom is invalid or corrupt
Cycle the power - if problem persists, replace the power structure
7
Flash Update in Progress
Complete Flash Procedures
8
Drive is expecting a Start Edge and is receiving a continuous signal
Open all start buttons and remove all start commands
9
Drive is expecting a Jog Edge and is receiving a continuous signal
Open all jog buttons and remove all jog commands
10
A conflict exists between the Encoder PPR programming (Par 232 or 242) and the
encoder configuration for edge counts (Par 233, bits 4 & 5)
Verify encoder data and reprogram
11
The drive cannot precharge because a precharge input is programmed and no
signal is present
Reprogram the input or close the precharge control contact
12
Dig
ital
C
onfigu
ra
tio
n
Start input configured but stop not configured
Program Par 825…830 to include a stop button, rewire the drive
Run input configured but control options do not match
Program Par 153, Bit 8 to “0” (2 wire control)
Start input configured but control options do not match
Program Par 153, Bit 8 to “1” (3 wire control)
Multiple inputs configured as Start or Run
Reprogram Par 825…830 so multiple starts, multiple runs or any combination do
not exist
Multiple inputs configured as Jog1
Reprogram Par 825…830 so only (1) is set to Jog1
Multiple inputs configured as Jog2
Reprogram Par 825…830 so only (1) is set to Jog2
Multiple inputs configured as Fwd/Rev
Reprogram Par 825…830 so only (1) is set to Fwd/Rev
14
Invalid Feedback Device for Permanent Magnet Motor Control
Set Par 222 to Value 5 (FB Opt Port0)