Diagnostics – Efb; Fault Queue For Drive Diagnostics; Serial Communication Diagnostics - ABB ACS550 User Manual

198
For example:
Feedback
integer
10
100
1
Assuming, for the sake of this example, that the Actual Value uses parameter 9908
as the 100% reference and that 9908 = 1500 rpm.
2
Assuming, for the sake of this example, that the Actual Value uses parameter 9907
as the 100% reference and that 9907 = 500 Hz.
Diagnostics – EFB

Fault queue for drive diagnostics

For general ACS550 diagnostics information, see chapter
The three most recent ACS550 faults are reported to the fieldbus as defined below.
0401 LAST FAULT
0412 PREVIOUS FAULT 1
0413 PREVIOUS FAULT 2

Serial communication diagnostics

Network problems can be caused by multiple sources. Some of these sources are:
• loose connections
• incorrect wiring (including swapped wires)
• bad grounding
• duplicate station numbers
• incorrect setup of drives or other devices on the network.
The major diagnostic features for fault tracing on an EFB network include
EFB PROTOCOL
descriptions
Embedded fieldbus
Value of the
Parameter
parameter that
resolution
defines 100%
0.1% 1500 rpm
0.1% 500 Hz
Modbus protocol reference
Drive parameter
parameters 5306...5309. Section
on page 98 describes these parameters in detail.
(Feedback integer) · (Parameter resolution) ·
(Value of 100% ref.) / 100% = Scaled value
1
10 · 0.1% · 1500 RPM / 100% = 15 rpm
2
100 · 0.1% · 500 Hz / 100% = 50 Hz
ABB DRV DCU PROFILE
40401
40412
40413
ACS550 User's Manual
MOT NOM SPEED
MOT NOM FREQ
Diagnostics on page 243.
Group 53:
Complete parameter