Protection Classes For Module; Ambient Conditions; Safe Torque Off (Sto) - ABB ACS880-04F Quick Installation And Start-Up Manual

Screw size for connect-
ing busbars to the drive
module input and output
busbars
Tightening torque

Protection classes for module

Degrees of protection
(IEC/EN 60529)
Enclosure types (UL
50/50E)
Overvoltage category
(IEC/EN 60664-1)
Protective class
(IEC/EN 61800-5-1)

Ambient conditions

Installation altitude
Surrounding air
temperature

Safe torque off (STO)

The drive has a Safe torque off (STO) function in accordance with IEC/EN 61800-5-2.
It can be used, for example, as the final actuator device of safety circuits that stop
the drive in case of danger (such as an emergency stop circuit).
When activated, the STO function disables the control voltage of the power
semiconductors of the drive output stage, thus preventing the drive from generating
the torque required to rotate the motor. The control program generates an indication
as defined by parameter 31.22. If the motor is running when STO is activated, it coasts
to a stop. Closing the activation switch deactivates STO. Any faults generated must
be reset before restarting.
The STO function has a redundant architecture, that is, both channels must be used
in the safety function implementation. The safety data given is calculated for redundant
use, and does not apply if both channels are not used.
M12
50...75 N·m (37...55 lbf·ft)
IP20 (standard)
IP00 (option +0B051)
Heatsink: IP55
UL Open Type
Heatsink: UL Type 12
III
I
For TN and TT neutral-grounded network systems and IT non-cornergrounded
network systems: 0 to 4000 m (13123 ft) above sea level
For corner-grounded network systems: 0 to 2000 m (6561 ft) above sea level
Installation on 525...690 V corner-grounded or midpoint-grounded delta
systems is not permitted.
The output current must be derated by 1% for each 100 m (328 ft) at altitudes
above 1000 m (3281 ft).
Operation: -15 ...+55 °C (5...131 °F). Frost is not permitted. The rated output
current must be derated by 1% for each 1 °C (1.8 °F) over 40 °C (104 °F).
Storage in the package: -40 to +70 °C (-40 to +158 °F).
Technical data and references 27