ABB ACS850 User Manual

Parameters 193
Const Bit pointer setting (see Terms and abbreviations on page
102).
-
Pointer
30.02 Speed ref safe Defines the safe speed reference that is used with the Spd ref
Safe setting of supervision parameters 13.32 AI superv func,
30.03 Local ctrl loss or 50.02 Comm loss func upon an alarm.
This speed is used when the parameter is set to Spd ref Safe.
-30000 … 30000
rpm
Safe speed reference. 1 = 1 rpm
30.03 Local ctrl loss Selects how the drive reacts to a control panel or PC tool
communication break.
No No action taken. 0
Fault Drive trips on fault LOCAL CTRL LOSS. 1
Spd ref Safe The drive generates alarm LOCAL CTRL LOSS and sets the
speed to the speed defined by parameter 30.02 Speed ref
safe.
WARNING! Make sure that it is safe to continue
operation in case of a communication break.
2
Last speed The drive generates alarm LOCAL CTRL LOSS and freezes
the speed to the level the drive was operating at. The speed
is determined by the average speed over the previous 10
seconds.
WARNING! Make sure that it is safe to continue
operation in case of a communication break.
3
30.04 Mot phase loss Selects how the drive reacts when a motor phase loss is
detected.
No No action taken. 0
Fault The drive trips on fault MOTOR PHASE. 1
30.05 Earth fault Selects how the drive reacts when an earth fault or current
unbalance is detected in the motor or the motor cable.
No No action taken. 0
Warning The drive generates alarm EARTH FAULT. 1
Fault The drive trips on fault EARTH FAULT. 2
30.06 Suppl phs loss Selects how the drive reacts when a supply phase loss is
detected.
No No action taken. 0
Fault The drive trips on fault SUPPLY PHASE. 1
30.07 Sto diagnostic Selects how the drive reacts when it detects the absence of
one or both Safe torque off (STO) signals.
Note: This parameter is for supervision only. The Safe torque
off function can activate even when this parameter is set to
No.
For general information on the Safe torque off function, see
the Hardware manual of the drive, and Application guide -
Safe torque off function for ACSM1, ACS850 and ACQ810
drives (3AFE68929814 [English]).
Fault The drive trips on SAFE TORQUE OFF when one or both of
the STO signals are lost.
1
No. Name/Value Description FbEq

ABB ACS850 Specifications

General

Safety	STO (Safe Torque Off)
Communication	CANopen
Enclosure	IP21
Output Voltage	Up to 1000 V DC
Protection Features	Overcurrent, Overvoltage, Undervoltage
Cooling Method	Air or liquid cooling
Input Voltage	380 to 690 V AC