✓ Standard: 2-3 days
✓ Urgent: 24-48 hours*
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* Services subject to availability
SIMOVERT SC is the Servo Control version of the Siemens SIMOVERT MASTER DRIVES 6SE70 family, one of three original control versions alongside Frequency Control for simple duty such as pumps and fans and Vector Control where dynamic performance and accuracy matter.
Where FC and VC drive induction motors, SC is specified for single-motor drives with permanent-field 1FT6 servo motors, using ERN 1387 or compatible encoders, or resolvers, for feedback. Control is field-oriented vector, in closed-loop speed or closed-loop torque mode, to a maximum stator frequency of 400 Hz.
The AC-AC units take a three-phase mains supply at 208-230 V or 380-460 V. The DC-AC units take an external DC link at 280-310 V or 510-620 V and provide the inverter stage only, so they cannot be tested from a mains supply. Because the 6SE70 control versions share the same hardware and ratings, the order number is the only reliable identifier: every SIMOVERT SC number ends 30.
Field-oriented vector control with a fast secondary closed-loop current control
Closed-loop speed control and closed-loop torque control modes
Maximum stator frequency of 400 Hz
Motor identification (MOTID) at commissioning
ERN 1387 encoders, ERN 1387-compatible encoders and resolvers supported
Specified for single-motor drives with permanent-field 1FT6 servo motors
| Manufacturer | Siemens |
|---|---|
| Series | SIMOVERT MASTERDRIVES SC (Servo Control), 6SE70 |
| Measured voltage, input (RA/RB/RC/RD units) | DC 280 to 310 ±15 % |
| Measured voltage, input (TA/TB/TC/TD units) | DC 510 to 620 ±15 % |
| Measured voltage, output | 3 AC 0 to measured DC voltage / 1.35 |
| Measured frequency, output | U/f = constant 0 to 100; U = constant 28 to 400 (Hz) |
| Measured output current (models listed below) | 6.1 A to 81 A |
| Pulse frequency | Preset to 5 kHz, settable 5 kHz to 7.5 kHz |
| Auxiliary power supply | DC 24 (20-30) V |
| Loading class II acc. EN 60146-1-1 | Base load time 240 s, overcurrent time 60 s (160% for 30 s in a 300 s cycle) |
| Degree of protection | Standard IP20, EN 60529 |
| Protection class | I, DIN VDE 0106 Section 1 |
| Cooling medium temperature | 0 °C to +40 °C |
| Storage temperature | -25 °C to +70 °C |
| Pollution level | 2, DIN VDE 0110 Part 1 |
| Overvoltage category | III, DIN VDE 0110 Part 2 |
| Radio interference level | Standard: without; option B1 EN 55011 |
| Noise immunity | EN 50082-1 |
| Power factor (converter cos phi) | Less than 0.92 ind. |
| Efficiency | 0.97 to 0.98 |
| Product Status | Obsolete. SIMOVERT SC has no chapter in the 2003/2004 MASTERDRIVES catalogues. Siemens has published no phase-out notice and no successor mapping for it |
| DC-AC Converter Order No. 6SE70... | Measured voltage Input | Measured current Output (A) | Measured power (kVA) | Housing size |
|---|---|---|---|---|
| 21-1RA30 | DC 280-310 ±15 % | 10.6 | 3.8-4.2 | A |
| 21-3RA30 | DC 280-310 ±15 % | 13.3 | 4.8-5.3 | A |
| 21-8RB30 | DC 280-310 ±15 % | 17.7 | 6.4-7.1 | B |
| 22-3RB30 | DC 280-310 ±15 % | 22.9 | 8.3-9.1 | B |
| 23-2RB30 | DC 280-310 ±15 % | 32.2 | 11.6-12.8 | B |
| 24-4RC30 | DC 280-310 ±15 % | 44.2 | 15.9-17.6 | C |
| 25-4RD30 | DC 280-310 ±15 % | 54.0 | 19.5-21.5 | D |
| 27-0RD30 | DC 280-310 ±15 % | 69.0 | 24.9-27.5 | D |
| 28-1RD30 | DC 280-310 ±15 % | 81.0 | 29.2-32.3 | D |
| 16-1TA30 | DC 510-620 ±15 % | 6.1 | 4-4.9 | A |
| 18-0TA30 | DC 510-620 ±15 % | 8.0 | 5.3-6.4 | A |
| 21-0TA30 | DC 510-620 ±15 % | 10.2 | 6.7-8.1 | A |
| 21-3TB30 | DC 510-620 ±15 % | 13.2 | 8.7-10.5 | B |
| 21-8TB30 | DC 510-620 ±15 % | 17.5 | 11.5-13.9 | B |
| 22-6TC30 | DC 510-620 ±15 % | 25.5 | 16.8-20.3 | C |
| 23-4TC30 | DC 510-620 ±15 % | 34.0 | 22.4-27.1 | C |
| 23-8TD30 | DC 510-620 ±15 % | 37.5 | 24.7-29.9 | D |
| 24-7TD30 | DC 510-620 ±15 % | 47.0 | 30.9-37.4 | D |
| 26-0TD30 | DC 510-620 ±15 % | 59 | 38.8-47.0 | D |
| 27-2TD30 | DC 510-620 ±15 % | 72.0 | 47.4-57.4 | D |
This table is the DC-AC (DC input) converter line. The AC-AC SC version is documented separately and is not listed here, so please contact us with the order number from your rating plate and we will confirm support for your unit.
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