ABB RCNA-01 Manual de usuario Pagina 226

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222 Parameter listing and descriptions
ACH550-01 User's Manual
Group 22: ACCEL/DECEL
This group defines ramps that control the rate of acceleration
and deceleration. You define these ramps as a pair, one for
acceleration and one for deceleration. You can define two pairs
of ramps and use a digital input to select one of these.
Code Description Range
2201 ACC/DEC 1/2 SEL -6…6
Defines control for selection of acceleration/deceleration ramps.
Ramps are defined in pairs, with one ramp for acceleration and one
ramp for deceleration.
See below for the ramp definition parameters.
0 =
NOT SEL – Disables selection, the first ramp pair is used.
1 =
DI1 – Defines digital input DI1 as the control for ramp pair selection.
• Activating the digital input selects ramp pair 2.
• De-activating the digital input selects ramp pair 1.
2…6 =
DI2…DI6 – Defines digital input DI2…DI6 as the control for ramp
pair selection.
•See
DI1 above.
7 =
COMM – Defines bit 10 of Command Word 1 (parameter 0301) as the
control for ramp pair selection.
The command word is supplied through fieldbus communication.
-1 =
DI1(INV) – Defines an inverted digital input DI1 as the control for
ramp pair selection.
• De-activating the digital input selects ramp pair 2.
• Activating the digital input selects ramp pair 1.
-2…-6 =
DI2(INV)…DI6(INV) – Defines an inverted digital input DI2…DI6
as the control for ramp pair selection.
•See
DI1(INV) above.
2202 ACCELER TIME 1 0.0…1800 s
Sets the acceleration time for zero to maximum frequency for ramp
pair 1. See A in the figure for parameter 2204.
Actual acceleration time also depends on 2204
RAMP SHAPE 1.
See 2008
MAXIMUM FREQ.
2203 DECELER TIME 1 0.0…1800 s
Sets the deceleration time for maximum frequency to zero for ramp
pair 1.
Actual deceleration time also depends on 2204
RAMP SHAPE 1.
See 2008
MAXIMUM FREQ.
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