228
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 =
DI
1 – Defines digital input
DI
1 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 =
DI
2…
DI
6 – Defines digital input
DI
2…
DI
6 as the control for ramp
pair selection.
• See
DI
1 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 =
DI
1(
INV
) – Defines an inverted digital input
DI
1 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 =
DI
2(
INV
)…
DI
6(
INV
) – Defines an inverted digital input
DI
2…
DI
6
as the control for ramp pair selection.
• See
DI
1(
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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