ABB MicroFlex e190 User Manual page 15

• If the drive is subjected to high potential ('hipot') testing, only DC voltages may be
applied. AC voltage hipot tests could damage the drive. For further information
please contact your local ABB representative.
• The safe integration of the drive into a machine system is the responsibility of the
machine designer. Be sure to comply with the local safety requirements at the
place where the machine is to be used. In Europe these are the Machinery
Directive, the Electromagnetic Compatibility Directive and the Low Voltage
Directive. In the United States this is the National Electrical code and local codes.
• To comply with CE directive 2014/13/EU an appropriate AC filter must be
installed.
• Motor overtemperature sensing is required to satisfy UL 61800-5-1. The drive has
no provisions for motor overtemperature protection, so external provisions are
required. The motor thermistor connection must be isolated (see page 58).
• The AC supply, DC supply (if used) and the 24 V DC control circuit supply must
be fused.
• The 24 V DC control circuit supply must be installed so that the 24 V DC supplied
to the unit is isolated from the AC supply using double or reinforced insulation, or
by using basic insulation with a protective earth.
• The input of the control circuit must be limited to Safety Extra Low Voltage circuits.
• For UL installations use 75 °C copper wiring only.
• For UL installations: Integral solid state short circuit protection does not provide
branch circuit protection. Branch circuit protection must be provided in
accordance with the National Electrical Code and any additional local codes.
• For use in Canada: Transient surge suppression shall be installed on the line side
of this equipment and shall be rated 240V (phase to ground), 240V (phase to
phase), suitable for overvoltage category III, and shall provide protection for a
rated impulse withstand voltage peak of 2.5kV.
Note:
• The motor cable terminals on the drive are at a dangerously high voltage when
the input power is on, regardless of whether the motor is running or not.
• The DC terminals (UDC+, UDC-) carry a dangerous DC voltage that is
approximately 1.4 times the AC supply voltage, e.g. 336 V DC when operating on
a 240 V AC supply.
• The Safe Torque Off function does not remove the voltage from the main and
auxiliary circuits. The function is ineffective against deliberate sabotage or
misuse. See page 187.
Safety 15