Lenze ECS Seie Instrucciones De Seguridad página 72

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2 Sicurezza
Altri pericoli
Istruzioni di sicurezza per l'installazione secondo U
2.3.4 Istruzioni di sicurezza per l'installazione secondo U
72
Warnings!
General markings:
Use 60/75 °C or 75 °C copper wire only.
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Maximum ambient temperature 55 °C, with reduced output current.
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Markings provided for the supply units:
Suitable for use on a circuit capable of delivering not more than 5000 rms
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symmetrical amperes, 480 V max, when protected by K5 or H Fuses
(400/480 V devices).
Alternate - Circuit breakers (either inverse-time, instantaneous trip types or
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combination motor controller type E) may be used in lieu of above fuses
when it is shown that the let-through energy (i
current (I ) of the inverse-time current-limiting circuit breaker will be less
p
than that of the non-semiconductor type K5 fuses with which the drive has
been tested.
Alternate - An inverse-time circuit breaker may be used, sized upon the
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input rating of the drive, multiplied by 300 %.
Markings provided for the inverter units:
The inverter units shall be used with supply units which are provided with
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overvoltage devices or systems in accordance with UL840 2nd ed., Table 5.1.
The devices are provided with integral overload and integral thermal
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protection for the motor.
The devices are not provided with overspeed protection.
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Terminal tightening torque of lb-in (Nm)
X 21, X 22, X 23, X 24
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– 10.6 ... 13.3 lb-in (1.2 ... 1.5 Nm)
X4, X6, X14
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– 1.95 ... 2.2 lb-in (0.22 ... 0.25 Nm)
X 25
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– 4.4 ... 7.1 lb-in (0.5 ... 0.8 Nm)
Wiring diagram AWG
X 21, X 22, X 23, X 24
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– AWG 12 ... AWG 8
X4, X6, X14
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– AWG 28 ... AWG 16
X 25
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– AWG 24 ... AWG 12
o U
L R
o U
L R
2
t) and peak let-through
EDKCSXX0XX DE/EN/FR/ES/IT 4.0