Testpoint codes and functions, Testpoint codes and functions -10 – Rockwell Automation 20M LPM15 Liquid-Cooled Adjustable Frequency AC Drive FRN 2.xxx User Manual
Page 92
4-10
Troubleshooting
Stopping the drive results in a Decel Inhibit fault.
Testpoint Codes and
Functions
Select testpoint with [Testpoint x Sel], parameters 234/236. Values can be
viewed with [Testpoint x Data], parameters 235/237.
Cause(s)
Indication
Corrective Action
The bus regulation feature is
enabled and is halting deceleration
due to excessive bus voltage.
Excess bus voltage is normally due
to excessive regenerated energy or
unstable AC line input voltages.
Internal timer has halted drive
operation.
Decel Inhibit
fault screen.
LCD Status Line
indicates
“Faulted.”
1. See Attention statement on page
2. Reprogram parameters 161/162 to eliminate
any “Adjust Freq” selection.
3. Disable bus regulation (parameters 161 &
162) and add a dynamic brake.
4. Correct AC input line instability or add an
isolation transformer.
5. Reset drive.
No.
(1)
(1)
Enter in [Testpoint x Sel].
Description
Units
Values
Minimum
Maximum
Default
01
DPI Error Status
1
0
255
0
02
Heatsink Temp
0.1 degC
–100.0
100.0
0
03
Active Cur Limit
1
0
32767
0
04
Active PWM Freq
1 Hz
2
10
4
05
Life MegaWatt Hr
(2)
(2)
Use the equatio
n
below to calculate total Lifetime MegaWatt Hours.
0.1 MWh
0
429496729.5
0
06
Life Run Time
0.0001 Hrs
0
429496.7295
0
07
Life Pwr Up Time
0.0001 Hrs
0
429496.7295
0
08
Life Pwr Cycles
1
0
429496729.5
0
09
Life MW-HR Fract
1
0
4294967295
0
10
MW-HR Frac Unit
1
0
4294967295
0
12
Raw Analog In 1
1
0
0
13
Raw Analog In 2
1
0
0
16
CS Msg Rx Cnt
1
0
65535
0
17
CS Msg Tx Cnt
1
0
65535
0
18
CS Timeout Cnt
1
0
255
0
19
CS Msg Bad Cnt
1
0
255
0
22
PC Msg Rx Cnt
1
0
65535
0
23
PC Msg Tx Cnt
1
0
65535
0
24-29
PC1-6 Timeout Cnt
1
0
255
0
30
CAN BusOff Cnt
1
0
65535
0
31
No. of Analog Inputs
1
0
0
32
Raw Temperature
1
0
0
33
MTO Norm Mtr Amp
0.1 Amps
0
65535
0
34
DTO-Cmd DC Hold
1
0
32767
0
Value of Code 9
Value of Code 10
---------------------------------
0.1
×
⎝
⎠
⎛
⎞
Value of Code 5
+
Total Lifetime MegaWatt Hours
=