Fieldbus control
160
The LIMIT WORD INV Word includes faults and warnings, which occur when the
output current limit of the drive is exceeded. The current limit protects the drive in
various cases, e.g. integrator overload, high IGBT temperature etc.
Table 19 Limit Word Inv (Actual Signal 02.41)
Bit Name Description
0 INTEGRAT 200 Current limit at 200% integrator overload. Temperature model is
not active.*
1 INTEGRAT 150 Current limit at 150% integrator overload. Temperature model is
not active.*
2 INT LOW FREQ Current limit at high IGBT temperature with low output frequency
(<10 Hz). Temperature model is not active.*
3 INTG PP TEMP Current limit at high IGBT temperature. Temperature model is not
active.*
4 PP OVER TEMP Current limit at high IGBT temperature. Temperature model is
active.
5 PP OVERLOAD Current limit at high IGBT junction to case temperature.
Temperature model is active.
If the IGBT junction to case temperature continues to rise in spite
of the current limitation, PP OVERLOAD alarm or fault occurs.
See chapter Fault tracing.
6 INV POW LIM Current limit at inverter output power limit
7 INV TRIP CUR Current limit at inverter overcurrent trip limit
8 OVERLOAD CUR Maximum inverter overload current limit. See 20.03.
9 CONT DC CUR Continuous dc-current limit
10 CONT OUT CUR Continuous output current limit (I
cont.max
)
11…15 Reserved
*Not active with ACS800 default settings.
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