Operating Instructions ACU
5 Technical data
5.1 General technical data
The ACU frequency inverters meet the requirements of the low voltage
directive 2006/95/EEC and DIN EN 61800-5-1.
For proper installation of the frequency inverter in order to meet the
requirements of EN 61800-3, please comply with the installation instructions in
these operating instructions.
The ACU frequency inverters meet the requirements of EN 61800-3 for use in
industrial environments.
The frequency inverters are also marked with the UL label according to UL508c,
which proves that they also meet the requirements of the CSA Standard C22.2-
No. 14.
ACU 401 device series are UL-approved in sizes 1 through 7, ACU 201 devices
are UL-approved in sizes 1 and 2.
The function is described in application manual "Safe Torque Off STO".
Storage: -25 ... 55°C (for liquid cooling: drain the heat sink completely!)
Transport: -25 ... 70°C (for liquid cooling: drain the heat sink completely!)
Operation: 0…55°C; as from 40 °C power reduction should be considered.
70 ... 106 kPa (to be checked)
Operation: 3K3 (EN60721-3-3)
Relative humidity
Air cooling: 15…85%, no water condensation
Liquid cooling: 15…95%, non-condensing
For liquid cooling: Comply with the notes on “Heat sink condensation
protection” in the “Operating Instructions Liquid Cooling Supplemental”.
In addition, the following environmental conditions must be considered for
operation according to DIN EN 60721-3-3:
3Z1 (negligible thermal radiation)
3B1 (no biological impact)
3C1 (chemically active substances, limits as per standard)
3S1 (mechanically active substances, no sand in air, limits as per standard)
3M4 (mechanical vibration and shocks, limits as per standard)
Ingress protection
rating
IP20 if covers and connection terminals are used properly.
Up to 1000 m at rated specifications.
Up to 4000 m at reduced power.
Storage according to EN 50178.
After one year of storage, connect the device to mains voltage for 60 minutes.
The frequency inverter may be operated in TN, TT and IT grid types.
Precautions must be taken for operation in IT grids, see Chapter 7 "Electrical
installation". Operation in a corner-grounded TN grid shall not be permissible.
Continuous operation 100 % IN
Up to 150% IN for 60 s
Up to 200% IN for 1 s
Devices -01, -
03
(0.25 & 0.37
kW):
Up to 200% IN for
60 s
Up to 200% IN for
1 s
Overload capacity can be used every 10 minutes. For the individual overload
capacity, refer to the technical data.