Rockwell Automation 23P PowerFlex Digital DC Drive User Manual
Page 226
226
Rockwell Automation Publication 20P-UM001K-EN-P - July 2014
Chapter 4
Troubleshooting
Start At PowerUp 1
[Start At Powerup] is enabled. The drive may start at any time after drive power up
and the time specified in Par
[Powerup Delay] has elapsed.
Torq Prov Cflct
2
[Torq Prove Cfg] is enabled (bit 0 = 1) and any of the following conditions/conflicts
have been occurred:
• You are operating a non-regenerative drive - negative current is required for the
TorqProve feature
[Direction Mode] set to 1”Rev Disable”
[Fdbk Device Type] is set to 3 “Armature Voltage”
[Fdbk Device Type] is set to 2 “DC Tach” and Par
[Torq Prove Cfg] bit 1
“Encoderless” = 0
[SpdReg FB Bypass] = 1 “Enabled”
[Spd Fdbk Control] = 0 “Disabled”
• A digital input is configured as “Lift Stop” and Par
[Torq Prove Cfg] bit 0 “TP Enable”
= 0
[Alpha Test] is set to 1 “On”
[TstGen Output] is not set to 0 “NotConnected”
[Max Fld Curr Pct] is not set to 100%
[Force Min Field] is set to 0 “Enabled”
[Speed Ramp En] is set to 0 “Disabled”
[Spd Trq Mode Sel] is not set to 1 “Speed Regulator”
• There is no relay output defined as 31 “TP Brake Cmd”
The following conditions will be annunciated on the HIM status line as “TP Encls Cfg” and set
Par
[Drive Alarm 2], bit 2 “TP Encls Cfg” = 1:
[Fdbk Device Type] is set to 1 “Encoder” or 4 “Resolver” and Par
[Torq Prove Cfg] bit 1 “Encoderless” = 0
[Torq Prove Cfg], bit 5 “BrkSlipEncls” = 0 or bit 6 “BrkSlipStart” = 1 and bit 1
“Encoderless” = 0
TP Encls Config
2
Encoderless TorqProve has been enabled but user has not read and understood application
concerns of encoderless operation. Read the “Attention” on page
relating to the use of
TorqProve with no encoder.
Alarm
Type
Description