S748-772 Instructions Manual | 7 Technical description
7.2 Technical data
7.2.1 Rated data
Electrical data DIM S74802 S77202
Rated supply voltage (grounded supply.
phase to phase) (L1.L2.L3)
V~ 3 x 208V-10% … 3 x 480V+10%.
50/60 Hz
Rated input power for cont. operation kVA 35 50
Permitted switch on/off frequency 1/h 30
Auxiliary voltage supply — (➜ # 31)
Maximum DC bus link voltage V= 900
Rated output current (rms value, 3%)
at 3x208V Arms 48 72
at 3x230V Arms 48 72
at 3x400V Arms 48 72
at 3x480V Arms 48 72
Peak output current (for max. 5s. ± 3%) Arms 96 140
Switching frequency of output stage kHz 8
- at reduced current (50%) kHz 16
Voltage rise speed dU/dt, (measured without connected motor, (➜ # 73))
at 3x208V kV/µs 2.1
at 3x230V kV/µs 2.3
at 3x400V kV/µs 4.0
at 3x480V kV/µs 4.8
Technical data for brake circuit — (➜ # 35)
Threshold for overvoltage switch-off VDC (➜ # 35)
Motor inductance min. at 3x208V mH 0.38 0.26
Motor inductance min. at 3x230V mH 0.42 0.29
Motor inductance min. at 3x400V mH 0.74 0.51
Motor inductance min. at 3x480V mH 0.88 0.61
Motor inductance max. mH Consult our support
Form factor of the output current (rated con-
ditions, min. load inductance)
— 1.01
Bandwidth of current controller kHz > 1.2 (up to 5)
Residual voltage drop at rated current V 6
Thermal dissipation, output stage disabled W 24
Thermal dissipation at rated current (without brake dissipation)
at 3x230V W 555 855
at 3x400V W 635 1005
at 3x480V W 685 1135
Noise emission max. dB(A) 62 68
Mechanical data
Weight kg 13
Weight Coldplate Version (S7480C, S7480A) kg 10.4 -
Height, without/with connectors & shielding plate mm 386/505
Width mm 190
Depth, without/with connectors mm 244/285
* In case of mains voltage below 300V, set parameters NONBTB=3 and VBUSBAL=1.
30 Kollmorgen | kdn.kollmorgen.com | July 2019
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