Lenze ECS series - Manual (Page 72)

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