•
In case a manually operated activation switch is used, the switch must be of a type that
can be locked out to the open position.
•
The contacts of the switch or relay must open/close within 200 ms of each other.
•
A CPTC-02 thermistor protection module can also be used. For more information, see
the module documentation.
■
Cable types and lengths
•
Double-shielded twisted-pair cable is recommended.
•
Maximum cable lengths:
•
300 m (1000 ft) between activation switch [K] and drive control unit
•
60 m (200 ft) between multiple drives
•
60 m (200 ft) between external power supply and first control unit
Note:
A short-circuit in the wiring between the switch and an STO terminal causes a
dangerous fault. Therefore, it is recommended to use a safety relay (including wiring
diagnostics) or a wiring method (shield grounding, channel separation) which reduces or
eliminates the risk caused by the short-circuit.
Note:
The voltage at the STO input terminals of the drive must be at least 13 V DC to be
interpreted as “1”.
The pulse tolerance of the input channels is 1 ms.
■
Grounding of protective shields
•
Ground the shield in the cabling between the activation switch and the control unit at
the control unit only.
•
Ground the shield in the cabling between two control units at one control unit only.
The Safe torque off function 177
Summary of Contents for ACH580-04
Page 1: ... ABB DRIVES FOR HVAC ACH580 04 drive modules Hardware manual ...
Page 2: ......
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Page 54: ...54 ...
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Page 124: ...124 ...
Page 128: ...3 6 5 5 128 Maintenance ...
Page 134: ...134 ...
Page 156: ...R10 standard configuration 156 Dimension drawings ...
Page 157: ...R10 with E208 0H354 H356 H370 0H371 Dimension drawings 157 ...
Page 158: ...R10 with option B051 158 Dimension drawings ...
Page 159: ...R10 with option E208 H356 P906 192 Tools R10 3 1 Dimension drawings 159 ...
Page 160: ...R10 with option E208 0H371 H356 0H354 H370 P906 Tools 191 R10 2 1 160 Dimension drawings ...
Page 161: ...R10 with option B051 P906 190 Tools R10 1 1 Dimension drawings 161 ...
Page 162: ...R11 standard configuration 162 Dimension drawings ...
Page 163: ...R11 with option E208 0H371 H356 0H354 H370 Dimension drawings 163 ...
Page 164: ...R11 with option B051 164 Dimension drawings ...
Page 165: ...R11 with option E208 H356 P906 Dimension drawings 165 ...
Page 166: ...R11 with option E208 0H371 H356 0H354 H370 P906 166 Dimension drawings ...
Page 167: ...R11 with option B051 P906 Dimension drawings 167 ...
Page 186: ... Declaration of conformity 186 The Safe torque off function ...
Page 206: ...Dimension drawing 206 External control unit option P906 ...
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