Chapter 7 – Fault Tracing
7-2
ACA 635 IGBT Supply Sections
Fault History
When a fault is detected, it is stored in the Fault History. The last faults
and warnings are stored with the time the fault was detected.
WARNING!
After a fault reset, the ACA 635 will start if the start signal
is on. Before the reset, switch off the external start signal or ensure that
it is safe to start.
The Fault History can be viewed by pressing
or
in the Actual
Signal Display Mode. The Fault History can then be scrolled with
and
. To exit the Fault History press
or
. The Fault History
can be cleared by pressing the
RESET
key.
Fault and Warning
Messages
The tables below show the warning and fault messages.
Warning Messages
Warning
Cause
What to do
ACS 600 TEMP
Par. 9.12 bit 4
The ACS 600 internal temperature is
excessive. A warning is given if the converter
module temperature exceeds 115
°
C
.
Check ambient conditions.
Check air flow and fan operation.
Check heatsink fins for dust pick-up.
Check line current against unit current.
AI<MIN FUNC
Par. 9.12 bit 3
I/O reference 4...20 mA is below 3.1 mA when
Par. 13.06 MINIMUM AI2 or Par. 13.10
MINIMUM AI3 is set to 4 mA.
Check for proper analogue control signal level.
Check the control wiring.
CH0 TIMEOUT
Par. 9.12 bit 0
Communication break detected on CH0
receive.
(can be deactivated: see Parameter 70.04)
Check the fibre optic cables between the
NAMC board and overriding system (or
fieldbus adapter). Test with new fibre optic
cables.
Check that the CH0 node address (Par. 70.01
CH0 NODE ADDR) is correct in the ISU.
Check the status of the fieldbus adapter. See
appropriate fieldbus adapter manual.
Check parameter settings of Group 51, if a
fieldbus adapter is present. Check the
connections between the fieldbus and the
adapter.
Check that the bus master is communicating
and correctly configured.
CURRENT LIM
Par. 9.12 bit 5
Current limit is exceeded. The limit is 220 % of
I
1base(10s/60s)
.
Limit inverter actual power or lower the
reactive power percentage in Par. 24.01 Q
POWER REF.
DI5 = 0
Par. 9.12 bit 14
Digital input DI5 is OFF (0).
Check the function indicated via digital input
DI5.
E EARTH FLT
Par. 9.12 bit 13
IT Network
Impedance between a live part (e.g. phase
conductor, DC link, motor cable or motor) and
earth/ground is too low.
Earth fault in AC filter, line converter, DC link,
inverter(s), motor cables or motor.
Check motors.
Check motor cables.
Check ISU.
Check inverter(s).
Check AC filter.
Summary of Contents for ACS 600 MultiDrive
Page 4: ......
Page 8: ...Safety Instructions vi ACA 635 IGBT Supply Sections ...
Page 57: ...Chapter 7 Fault Tracing 7 8 ACA 635 IGBT Supply Sections ...
Page 99: ...Appendix B Circuit Diagrams B 2 ACA 635 IGBT Supply Sections H ...
Page 100: ...Appendix B Circuit Diagrams ACA 635 IGBT Supply Sections B 3 ...
Page 101: ...Appendix B Circuit Diagrams B 4 ACA 635 IGBT Supply Sections ...
Page 102: ...Appendix B Circuit Diagrams ACA 635 IGBT Supply Sections B 5 ...
Page 103: ...Appendix B Circuit Diagrams B 6 ACA 635 IGBT Supply Sections ...
Page 104: ...Appendix B Circuit Diagrams ACA 635 IGBT Supply Sections B 7 ...
Page 105: ...Appendix B Circuit Diagrams B 8 ACA 635 IGBT Supply Sections ...
Page 106: ...Appendix B Circuit Diagrams ACA 635 IGBT Supply Sections B 9 ...
Page 107: ...Appendix B Circuit Diagrams B 10 ACA 635 IGBT Supply Sections ...
Page 108: ......
