206 HEIDENHAIN Technical Manual MANUALplus 620
3.8 UxC 11x (FS): Power Supply and Motor Connection
3.8.1 UEC 11x (FS)
General
information
Number of available control loops
UEC 111 (FS): 4 control loops
UEC 112 (FS): 5 control loops
Specifications UEC 112 (FS) UEC 111 (FS)
3 axes 1 axis Spindle 2 axes 1 axis Spindle
Power supply 3 x 400 V to 480 V ~ ±10 % (50 Hz to 60 Hz)
DC-link voltage 565 V– (with supply voltage of 400 V)
Power loss Approx. 450 W Approx. 450 W
Rated current at a PWM
frequency of 3333 Hz
4000 Hz
5000 Hz
6666 Hz
8000 Hz
10000 Hz
6.0 A
5.5 A
5.0 A
4.2 A
3.6 A
3.0 A
9.0 A
8.3 A
7.5 A
6.3 A
5.5 A
3.0 A
24.0 A
22.0 A
20.0 A
16.8 A
14.6 A
12.2 A
6.0 A
5.5 A
5.0 A
4.2 A
3.6 A
3.0 A
9.0 A
8.3 A
7.5 A
6.3 A
5.5 A
3.0 A
24.0 A
22.0 A
20.0 A
16.8 A
14.6 A
12.2 A
Peak power 6-40 %
a
18 kW 18 kW
DC-link power 14 kW 14 kW
Maximum current
b
at a PWM
frequency of 3333 Hz
4000 Hz
5000 Hz
6666 Hz
8000 Hz
10000 Hz
12.0 A
11.0 A
10.0 A
8.4 A
7.3 A
6.0 A
18.0 A
16.5 A
15.0 A
12.6 A
11.0 A
6.0 A
36.0 A
33.0 A
30.0 A
25.2 A
21.9 A
18.3 A
12.0 A
11.0 A
10.0 A
8.4 A
7.3 A
6.0 A
18.0 A
16.5 A
15.0 A
12.6 A
11.0 A
6.0 A
36.0 A
33.0 A
30.0 A
25.2 A
21.9 A
18.3 A
Integral braking resistor
Continuous power 2.1 kW 2.1 kW
Peak power
c
27 kW 27 kW
Resistance 18 ohms 18 ohms
Load capacity +24 V NC 3.5 A 3.5 A
Weight Approx. 20 kg Approx. 20 kg
a. Spindle: 40 % cyclic duration factor for duty cycle time of 10 minutes (S6-40 %)
b. Axis: 0.2 s cyclic duration factor for duty cycle time of 10 s with 70 % rated current preload
Spindle: 10 s cyclic duration factor for duty cycle time of 60 s with 70 % rated current
preload
c. 1.5 % cyclic duration factor for duration of 120 s
Under some circumstances, certain high-speed spindles cannot be
satisfactorily controlled with 3.3 kHz PWM frequency. In this case, increase
the PWM frequency of the spindle. The spindle (X80) and the 1st axis (X81)
share a controller group. You therefore have to set the same PWM
frequency for X80 and X81. (Note the D rating!)
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