Constant Speeds; Critical Speeds; Drive-To-Drive Link; Emergency Stop - ABB ACS850 Firmware Manual

Constant speeds

It is possible to predefine up to 7 constant speeds. Constant speeds can be activated,
for example, through digital inputs. Constant speeds override the speed reference.
Settings
Parameter group 26 Constant speeds

Critical speeds

A Critical speeds function is available for applications where it is necessary to avoid
certain motor speeds or speed ranges because of, for example, mechanical
resonance problems.
Settings
Parameter group 25 Critical speed

Drive-to-drive link

The drive-to-drive link is a daisy-chained RS-485 transmission line that allows basic
master/follower communication with one master drive and multiple followers.
The wiring of the drive-to-drive link is presented in the hardware manual of the drive.
Settings
Parameter group 57 D2D communication

Emergency stop

Note: The user is responsible for installing the emergency stop devices and all the
additional devices needed for the emergency stop to fulfil the required emergency
stop category classes. For more information, contact your local ABB representative.
The emergency stop signal is to be connected to the digital input which is selected as
the source for the emergency stop activation (par.
stop off1). Emergency stop can also be activated through fieldbus
cw).
Note: When an emergency stop signal is detected, the emergency stop function
cannot be cancelled even though the signal is cancelled.

Encoder support

The program offers support for two encoders (or resolvers), encoder 1 and 2.
Multiturn encoders are supported only as encoder 1. Three optional interface
modules are available:
(page 137).
(page 136).
(page 186).
10.13 Em stop off3
Program features 31
or 10.15 Em
(02.22 FBA main