Rockwell Automation FlexPak 3000 Power Module Version 4.2 - Manual (Page 125)

APPENDIX B
49’1340 e FlexPak 3000 B-21
FREQ OUT ZERO (P.426)
Only available if the I/O Expansion kit is installed.
The frequency generated when the signal driving the frequency output is zero.
If the signal goes negative, the frequency output maintains the frequency set by this parameter.
Parameter Range: 2.0 to FREQ OUT FULL SCALE kHz
Default Setting: 2.0 kHz
Parameter Type: Configurable
OIM Menu Path(s): Input/Output - Frequency I/O
Refer also to Parameters: FREQ OUT FULL SCALE (P.427)
INERTIA COMP SELECT (P.221)
Selects the source of the inertia compensation signal.
The analog input choices are only available if the I/O Expansion kit is installed.
The network choices are only available if the Network kit is installed.
When INTERNAL is selected, the inertia compensation signal is generated by scaling the rate output
from the speed/voltage loop S-curve block based on the combined inertia of the motor and its connected
load.
Parameter Range: NONE, INTERNAL,
ANALOG IN 1, ANALOG IN 2,
NETW IN REG 1, NETW IN REG 2, NETW IN REG 3
Default Setting: NONE
Parameter Type: Configurable
OIM Menu Path(s): Speed/Voltage Loop (SPD) - Speed/Voltage Loop (SPD) Tuning
Refer also to Parameters: NORMALIZED INERTIA (P.222)
INV FAULT AVOID SEL (P.312)
Determines how the drive responds to a potential (or probable) inverting fault condition.
Refer to the table on the next page for initiated actions depending on parameter settings.
Parameter Range: 1 = DISABLED,
2 = FAULT IMMEDIATELY,
3 = DELAY BEFORE FAULT
Default Setting: DISABLED
Parameter Type: configurable
OIM Menu Path(s): Additional parameters
ATTENTION: When activated, inverting fault avoidance takes control of the Current Minor Loop either
by forcing the current reference to zero (if the drive is regenerating) or by disabling the
regenerative bridge (if the drive is not regenerating). You must analyze your
application to determine whether or not inverting fault avoidance should be used.
ATTENTION: Enabling the inverting fault avoidance logic does not guarantee that an inverting fault is
prevented in all instances. Therefore on regenerating drives super fast armature fuses
(according to chapter 8) must be provided.