Rockwell Automation FlexPak 3000 Digital DC Drive Version 4.3 - Manual (Page 74)

6-4 FlexPak 3000 DC Drive Software Reference
CML REF RATE LIMIT
(P.303)
Minimum time for CML
REFERENCE to change
from zero to MAXIMUM
CURRENT .
Parameter Range: 1 to 1000 msec
Default Setting: 40 msec
Parameter Type: Tunable
OIM Menu Path(s): Current Minor Loop ( CML ) - CML Tuning
This parameter is set by the CML self-tuning procedure. You can also enter it
directly. Self-tuning will overwrite values entered manually.
CML REFERENCE (P.396)
The amplitude and
rate limited value of
the selected
CML
reference.
Parameter Range: n/a
Default Setting: n/a
Parameter Type: Output
OIM Menu Path(s): Current Minor Loop ( CML ) - CML Test Points
NEG CUR LIM INV EN (P.226)
Enables or disables
the negative current
limit inverter to the
speed loop
PI block
low limit input.
Parameter Range: DISABLED
ENABLED
Default Setting: ENABLED
Parameter Type: Configurable
OIM Menu Path(s): Additional Parameters (listed by parameter number)
When this parameter is set to ENABLED , POSITIVE CURRENT LIM (P.005) and NEGATIVE
CURRENT LIM (P.006) are restricted to positive values.
When this parameter is set to DISABLED , the range of NEGATIVE CURRENT LIM (P.006)
is restricted to negative values.
When you change this parameter value:
• Alarm A00052 occurs.
• The parameters NEG CURRENT LIM SEL (P.224) and POS CURRENT LIM SEL (P.223)
are automatically set to REGISTER .
• The value of NEGATIVE CURRENT LIM (P.006) is inverted. For example, if NEG CUR
LIM INV EN is set to ENABLE and NEGATIVE CURRENT LIM is set to 150% FLA ,
changing NEG CUR LIM INV EN to DISABLED causes the value of NEGATIVE CURRENT
LIM to change to –150% FLA .
Carefully check your current limit scheme and the values of POSITIVE CURRENT LIM
(P.005) and NEGATIVE CURRENT LIM (P.006) to avoid unintended drive operation.