Technical Data; Contents Of This Chapter; Sto Components; Asto-11/21 Board - ABB ACS800 Series Application Manual

Technical data

Contents of this chapter

This chapter contains the technical details of the ASTO-11 and ASTO-21 boards, the
safety data for the STO components and example information of safety relays and
activation switches. It also lists the related standards and directives, and contains
declarations of conformity with the European Machinery Directive.

STO components

ASTO-11/21 board



ASTO-11 and ASTO-21 board

Supply voltage range
Current consumption
Supply cable
Maximum cable length
Conductor min. cross section
Logic levels
Ambient temperature
Relative humidity
Altitude in operation

ASTO-11 board

Dimensions
Weight
Degree of protection
+24 V DC +/- 10%
40 mA (20 mA/channel)
A single-shielded twisted pair
300 m
2
0.5 mm , 20 AWG
"0" < 5 V DC, "1" > 17 V DC
0...50 °C
Max. 90%, no condensation allowed
0...2000 m
167 x 128 x 52 mm (height x weight x depth)
0.75 kg
IP20
Technical data 35
6