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“Power+” +0500120IE - rel 1.1 - 02.05.2017
ENG
Note:
The RS485 and STO connections have reinforced insulation respect to power line.
Warning:
the max tightening torque is:
• power terminals: 1,5 Nm.
• control terminals: 0,5 Nm.
Important:
•
in the European Union, all units that incorporate the drive must comply with the Machinery Directive 2006/42/EC.
Specifically, the manufacturer of the unit is responsible for the installation of a main switch and the conformity to
standard EN 60204-1;
•
for fixed installations according to local Standards, a disconnect device could be required on the circuit between
the power supply and the drive;
•
the drive must be earthed: the earth wire must be sized for the maximum fault current that is normally limited by
the fuses or by a circuit breaker.
3.7
Conformity to EMC standards
As regards the general EMC guidelines, strictly follow the instructions shown in the paragraph on “Electrical
connections“ and in the user manual code +0300093EN.
3.8
Electrical connections
For installation proceed as shown below, with reference to the general connection diagram (par. 3.9).
Important:
the following warnings must be observed when connecting the drive:
•
separate as much as possible the probe and digital input cables (at least 40 cm) from the power cables to avoid
possible electromagnetic disturbance. Never lay power cables (including the electrical panel cables) and probe
signal cables in the same conduits;
•
the cables must be sized according to the table in paragraph 5.1;
•
the fuses must be chosen according to the data shown in the table in paragraph 5.1, and must comply with the
national and local standards in force (in general, use type gG fuses for IEC, see chapter 6 for UL);
•
when a magnetic circuit breaker (MCB) is used, it must be of type B, rated according to the data shown in the table
in paragraph 5.1;
•
avoid installing cables connected to the control terminal block in the immediate vicinity of power devices
(contactors, circuit breakers, etc.). Reduce the path of the cables as much as possible, and avoid spiral paths that
enclose power devices.
When operating at max power and temperature, the terminals can reach 90°C and it is suggested to use cables rated to
105°C; when operating conditions are so that terminals do not reach 85 °C, cables rated to 90 °C can be used. Use cable
terminals suitable for the terminals and the used cables. Loosen each screw and insert the cable ends, then tighten
the screws and lightly tug the cables to check correct tightness.
The drive must be earthed: to do this, use either terminal PE or the screw (earth symbol ), in accordance with local
standards in force.
The power supply earth must be connected directly to the earth bar in the electrical panel, without branches to other
devices; the earth wire size must be greater than or equal to the phase wires; the earth impedance must be compliant
with national and local standards.
