ABB ACQ580-01 Series Manuel d'installation et de démarrage rapide - Page 15
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Ambient conditions
This table shows the requirements for the ambient conditions when the drive is in operation (installed for stationary use).
Installation altitude
Surrounding air temperature
Relative humidity
Contamination levels
(IEC 60721-3-3: 2002)
Vibration
Safe Torque Off (STO)
The drive has a Safe torque off function (STO) 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 for 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 Safe torque off is activated, it coasts to a stop. Closing the
activation switch deactivates the 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.
WARNING! The STO function does not disconnect the voltage from the main and auxiliary circuits of the drive.
Notes:
•
If stopping by coasting is not acceptable, stop the drive and machinery using the appropriate stop mode
before activating the STO.
•
The STO function overrides all other functions of the drive.
Wiring
The safety contacts must open/close within 200 ms of each other.
Double-shielded twisted-pair cable is recommended for the connection. The maximum length of the cabling between the
switch and the drive control unit is 300 m (1000 ft). Ground the shield of the cable at the control unit only.
Validation
To ensure the safe operation of a safety function, a validation test is required. The test must be carried out by a competent
person with adequate expertise and knowledge of the safety function. The test procedures and report must be
documented and signed by this person. Validation instructions of the STO function can be found in the drive hardware
manual.
Technical data
•
Minimum voltage at IN1 and IN2 to be interpreted as "1": 13 V DC
•
STO reaction time (shortest detectable break): 1 ms
•
STO response time: 2 ms (typical), 5 ms (maximum)
•
Fault detection time: Channels in different states for longer than 200 ms
•
Fault reaction time: Fault detection time + 10 ms
•
STO fault indication (parameter 31.22) delay: < 500 ms
•
STO warning indication (parameter 31.22) delay: < 1000 ms
•
Safety integrity level (EN 62061): SIL 3
•
Performance level (EN ISO 13849-1): PL e
The drive STO is a type A safety component as defined in IEC 61508-2.
For the full safety data, exact failure rates and failure modes of the STO function, refer to the drive hardware manual.
0 ... 4000 m (0 ... 13123 ft) above sea level. The output current must be derated at
altitudes above 1000 m (3281 ft). The derating is 1% for each added 100 m (328 ft)
above 1000 m (3281 ft).
Above 2000 m (6562 ft), these grounding systems are permitted: TN-S (center-
grounded wye), TT, and IT (ungrounded or high-resistance symmetrically grounded).
For the installation requirements for corner-grounded systems at this altitude,
contact your local ABB representative.
Operation: -15 ... +50 °C (5 ... 122 °F). No frost permitted. At temperatures over 40 °C
(104 °F), the rated output current must be derated by 1% for each added 1 °C (1.8 °F).
Storage (in the package): -40 to +70 °C (-40 to +158 °F).
5 ... 95%. No condensation permitted. Maximum permitted relative humidity is 60%
in the presence of corrosive gases.
Chemical gases: Class 3C2.
Solid particles: Class 3S2. No conductive dust permitted.
Per IEC-60068-2-6
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