356 Safe torque off function
Maintenance
After the operation of the circuit is validated at start-up, the STO function shall be
maintained by periodic proof testing. In high demand mode of operation, the
maximum proof test interval is 20 years. In low demand mode of operation, the
maximum proof test interval is 5 or 2 years; see section
). It is
assumed that all dangerous failures of the STO circuit are detected by the proof test.
To perform the proof test, do the
(page
Note:
See also the Recommendation of Use CNB/M/11.050 (published by the
European co-ordination of Notified Bodies) concerning dual-channel safety-related
systems with electromechanical outputs:
• When the safety integrity requirement for the safety function is SIL 3 or PL e (cat.
3 or 4), the proof test for the function must be performed at least every month.
• When the safety integrity requirement for the safety function is SIL 2 (HFT = 1) or
PL d (cat. 3), the proof test for the function must be performed at least every 12
months.
The STO function does not contain any electromechanical components.
In addition to proof testing, it is a good practice to check the operation of the function
when other maintenance procedures are carried out on the machinery.
Include the Safe torque off operation test described above in the routine maintenance
program of the machinery that the drive runs.
If any wiring or component change is needed after start up, or the parameters are
restored, follow the test given in section
Use only spare parts approved by ABB.
Record all maintenance and proof test activities in the machine logbook.
Competence
The maintenance and proof test activities of the safety function must be carried out by
a competent person with adequate expertise and knowledge of the safety function as
well as functional safety, as required by IEC 61508-1 clause 6.
Fault tracing
The indications given during the normal operation of the Safe torque off function are
selected by drive parameter
31.22
. The indications can be read via fieldbus. The
indications are not safety-classified signals.
The diagnostics of the Safe torque off function cross-compare the status of the two
STO channels. In case the channels are not in the same state, a fault reaction
function is performed and the drive trips on an “STO hardware failure” fault. An
attempt to use the STO in a non-redundant manner, for example activating only one
channel, will trigger the same reaction.
Summary of Contents for ACH580-01 Series
Page 1: ...ABB DRIVES FOR HVAC ACH580 01 drives 0 75 to 250 kW 1 to 350 hp Hardware manual...
Page 2: ...Related documents are listed on page 27...
Page 4: ......
Page 14: ...14 Table of contents...
Page 24: ...24 Safety instructions...
Page 34: ...34 Introduction to the manual...
Page 52: ...52 Operation principle and hardware description...
Page 112: ...112 Guidelines for planning the electrical installation...
Page 122: ...122 Electrical installation IEC IEC R6 R9 Screw A EMC DC B EMC AC C VAR 3 B 3 A 4 C...
Page 156: ...156 Electrical installation IEC IEC R4 0 5 0 6 N m 0 4 lbf ft 7 4 3 8 11 5 9 11 6 10 8 4...
Page 157: ...Electrical installation IEC 157 IEC R5 4 6 11 11 10 4 3 5 7 8 9 0 5 0 6 N m 0 4 lbf ft 4 8...
Page 160: ...160 Electrical installation IEC IEC R3 R5 R1 R2 3 2 3 4 6 6 7 7 4 5 5...
Page 210: ...210 Electrical installation North America UL NEC R4 4 lbf ft 7 4 3 11 5 9 11 6 10...
Page 211: ...Electrical installation North America 211 UL NEC 8 R5 4 6 11 11 10 3 5 7 9 0 4 lbf ft 4...
Page 214: ...214 Electrical installation North America UL NEC R3 R5 R1 R2 3 2 3 4 6 6 7 7 4 5 5...
Page 222: ...222 Electrical installation North America UL NEC...
Page 242: ...242 Maintenance and hardware diagnostics...
Page 245: ...Technical data 245 See definitions and notes on page 247...
Page 308: ...308 Technical data...
Page 310: ...310 Dimension drawings Frame R1 IP21 UL Type 1 3AXD10000601652...
Page 311: ...Dimension drawings 311 Frame R1 IP55 UL Type 12 3AXD10000601699...
Page 312: ...312 Dimension drawings Frame R1 IP55 F278 UL Type 12 3AXD10000649451...
Page 313: ...Dimension drawings 313 Frame R2 IP21 UL Type 1 3AXD10000602398...
Page 314: ...314 Dimension drawings Frame R2 IP55 UL Type 12 3AXD10000602401...
Page 315: ...Dimension drawings 315 Frame R2 IP55 F278 UL Type 12 3AXD10000649654...
Page 316: ...316 Dimension drawings Frame R3 IP21 UL Type 1 3AXD10000602466...
Page 317: ...Dimension drawings 317 Frame R3 IP55 UL Type 12 3AXD10000602519...
Page 318: ...318 Dimension drawings Frame R3 IP55 E223 UL Type 12 3AXD10000649130...
Page 319: ...Dimension drawings 319 Frame R3 IP55 F278 F316 UL Type 12 3AXD10000649130...
Page 320: ...320 Dimension drawings Frame R4 IP21 UL Type 1 3AXD10000332430...
Page 321: ...Dimension drawings 321 Frame R4 IP55 UL Type 12 3AXD10000427933...
Page 322: ...322 Dimension drawings Frame R4 IP55 E223 UL Type 12 3AXD10000649283...
Page 323: ...Dimension drawings 323 Frame R4 IP55 F278 F316 UL Type 12 3AXD10000649283...
Page 324: ...324 Dimension drawings Frame R5 IP21 UL Type 1 3AXD10000412280...
Page 325: ...Dimension drawings 325 Frame R5 IP55 UL Type 12 3AXD10000415964...
Page 326: ...326 Dimension drawings Frame R5 IP55 E223 UL Type 12 3AXD10000687928...
Page 327: ...Dimension drawings 327 Frame R5 IP55 F278 F316 UL Type 12 3AXD10000687928...
Page 328: ...328 Dimension drawings Frame R6 IP21 UL Type 1 3AXD10000258705...
Page 329: ...Dimension drawings 329 Frame R6 IP55 UL Type 12 3AXD10000330667...
Page 330: ...330 Dimension drawings Frame R7 IP21 UL Type 1 3AXD10000258995...
Page 331: ...Dimension drawings 331 Frame R7 IP55 UL Type 12 3AXD10000330932...
Page 332: ...332 Dimension drawings Frame R8 IP21 UL Type 1 3AXD10000287670...
Page 333: ...Dimension drawings 333 Frame R8 IP55 UL Type 12 3AXD10000332446...
Page 334: ...334 Dimension drawings Frame R9 IP21 UL Type 1 3AXD10000287428...
Page 335: ...Dimension drawings 335 Frame R9 IP55 UL Type 12 3AXD10000334310...
Page 336: ...336 Dimension drawings...
Page 362: ...362 Safe torque off function...
Page 388: ...388 Optional I O extension modules...