ABB ACS880 PCP User Manual

Parameters 285
Fault Communication break detection active. Upon a
communication break, the drive trips on a 7510 FBA A
communication fault and coasts to a stop.
1
Last speed Communication break detection active. Upon a
communication break, the drive generates a warning
(A7C1 FBA A communication) and freezes the speed to
the level the drive was operating at. The speed is
determined on the basis of actual speed using 850 ms low-
pass filtering.
WARNING! Make sure that it is safe to continue
operation in case of a communication break.
2
Speed ref safe Communication break detection active. Upon a
communication break, the drive generates a warning
(A7C1 FBA A communication) and sets the speed to the
value defined by parameter 22.41 Speed ref safe (when
speed reference is being used) or 28.41 Frequency ref
safe (when frequency reference is being used).
WARNING! Make sure that it is safe to continue
operation in case of a communication break.
3
Fault always Drive trips on 7510 FBA A communication. This occurs
even though no control is expected from the fieldbus.
4
Warning Drive generates an A7C1 FBA A communication warning.
This occurs even though no control is expected from the
fieldbus.
WARNING! Make sure that it is safe to continue
operation in case of a communication break.
5
50.03 FBA A comm loss t
out
Defines the time delay before the action defined by
parameter 50.02 FBA A comm loss func is taken. Time
count starts when the communication link fails to update
the message.
As a rule of thumb, this parameter should be set to at least
3 times the transmit interval of the master.
0.3 s
0.3…6553.5 s Time delay. 1 = 1 s
50.04 FBA A ref1 type Selects the type and scaling of reference 1 received from
fieldbus adapter A. The scaling of the reference is defined
by parameters 46.01…46.03, depending on which
reference type is selected by this parameter.
Speed or
frequency
Speed or frequency Type and scaling are chosen automatically according to
the currently active operation mode as follows:
0
Transparent No scaling is applied. 1
General Generic reference with a scaling of 100 = 1 (ie. integer and
two decimals).
2
Torque The scaling is defined by parameter 46.03 Torque scaling. 3
No. Name/Value Description Def/
FbEq16
Operation mode
(see par. 19.01)
Reference type Scaling
Speed control
Speed 46.01 Speed scaling
Torque control
Frequency control Frequency 46.02 Frequency scaling

ABB ACS880 PCP Specifications

General

Output current	Up to 5200 A
Input voltage	380-690 V
Power range	5600 kW
Cooling method	Air or liquid
Protection class	IP21, IP54
Communication interfaces	Ethernet, CANopen