ABB ACS550 Series, User Manual

Page: 186 / 310

186 ACS550 User’s Manual
Parameters
8124 ACC IN AUX STOP
Sets the PFC acceleration time for a zero-to-maximum
frequency ramp. This PFC acceleration ramp:
• Applies to the speed regulated motor, when an auxiliary
motor is switched off.
• Replaces the acceleration ramp defined in Group 22:
ACCEL/DECEL l.
• Applies only until the output of the regulated motor
increases by an amount equal to the output of the
switched off auxiliary motor. Then the acceleration ramp
defined in Group 22: ACCEL/DECEL applies.
0 =
NOT SEL
.
0.1…1800 – Activates this function using the value
entered as the acceleration time.
• A = speed regulated motor accelerating using Group 22:
ACCEL/DECEL parameters (2202 or 2205).
• B = speed regulated motor decelerating using Group
22: ACCEL/DECEL parameters (2203 or 2206).
• At aux. motor start, speed regulated motor decelerates
using 8125
DEC IN AUX START
.
• At aux. motor stop, speed regulated motor accelerates
using 8124
ACC IN AUX STOP
.
8125 DEC IN AUX START
Sets the PFC deceleration time for a maximum-to-zero
frequency ramp. This PFC deceleration ramp:
• Applies to the speed regulated motor, when an auxiliary
motor is switched on.
• Replaces the deceleration ramp defined in Group 22:
ACCEL/DECEL .
• Applies only until the output of the regulated motor
decreases by an amount equal to the output of the
auxiliary motor. Then the deceleration ramp defined in
Group 22: ACCEL/DECEL applies.
0 =
NOT SEL
.
0.1…1800 – Activates this function using the value
entered as the deceleration time.
8126 TIMED AUTOCHNG
Sets the autochange using a Timed function. See parameter 8119
AUTOCHNG LEVEL
.
0 =
NOT SEL
.
1 =
TIMED FUNC
1 – Enables autochange when Timed function 1 is active.
2…4 =
TIMED FUNC
2…4 – Enables autochange when Timed function 2…4 is active.
8127 MOTORS
Sets the actual number of PFC controlled motors (maximum 7 motors, 1 speed regulated, 3 connected direct-on-line
and 3 spare motors).
• This value includes also the speed regulated motor.
• This value must be compatible with the number of relays allocated to PFC if the Autochange function is used.
• If Autochange function is not used, the speed regulated motor does not need to have a relay output allocated to
PFC but it needs to be included in this value.
8128 AUX START ORDER
Sets the start order of the auxiliary motors.
1 =
EVEN RUNTIME
– Time sharing is active. The start order depends on the run times.
2 =
RELAY ORDER
– The start order is fixed to be the order of the relays.
Code Description
P 8125
P 8124
A
B
1
0
Aux.
motor
f
OUT
t
t