Softwell SINAMICS G120 — Handwritten M-Step Manual
Connection & First Commissioning
Practical Outcome: Connect SIMATIC STARTER V5.7 with SINAMICS G120 via USB/Ethernet, upload parameters, compare online/offline and complete quick commissioning.
Parameter / Wiring Reference
p0010 = 30 // Factory reset preparation p0970 = 1 // Factory reset p0304 = 400 // Rated motor voltage p0305 = 2.05// Rated motor current p0307 = 0.75// Rated motor power p0310 = 50 // Rated frequency p0311 = 1395// Rated speed p0971 = 1 // Save RAM to EEPROM
Daily Practice / Viva
Prepare one screenshot or handwritten note for communication setting, parameter list, wiring check, troubleshooting point and final test result of Day 01.
Softwell SINAMICS G120 — Handwritten M-Step Manual
Drive Macros: Fixed Speed & Analog Reference
Practical Outcome: Commission SINAMICS G120 using macro-based control for terminal commands, fixed speeds and analog speed reference.
Parameter / Wiring Reference
p0015 = 1 // Macro 1 example p1080 = 0.00 // Minimum frequency p1082 = 50.0 // Maximum frequency p1120 = 5.0 // Ramp-up time p1121 = 5.0 // Ramp-down time p1001 = 10.0 // Fixed speed 1 p1002 = 25.0 // Fixed speed 2 p1003 = 40.0 // Fixed speed 3
Daily Practice / Viva
Prepare one screenshot or handwritten note for communication setting, parameter list, wiring check, troubleshooting point and final test result of Day 02.
Softwell SINAMICS G120 — Handwritten M-Step Manual
Macro 7 PROFINET PLC Communication
Practical Outcome: Configure G120 with Compact / Siemens PLC style fieldbus control using PROFINET, telegram, control word, status word and speed reference.
Parameter / Wiring Reference
// Telegram 1 common word mapping PLC -> Drive PZD1 = STW1 Control Word PLC -> Drive PZD2 = Speed Setpoint Drive -> PLC PZD1 = ZSW1 Status Word Drive -> PLC PZD2 = Actual Speed STW1 bit 0 = ON/OFF1 STW1 bit 1 = OFF2 enable STW1 bit 2 = OFF3 enable STW1 bit 7 = Fault acknowledge
Daily Practice / Viva
Prepare one screenshot or handwritten note for communication setting, parameter list, wiring check, troubleshooting point and final test result of Day 03.
Softwell SINAMICS G120 — Handwritten M-Step Manual
Macro 21 Modbus RTU / USS Communication
Practical Outcome: Configure RS485 communication for Modbus RTU or USS and test register-based control, status and speed reference.
Parameter / Wiring Reference
// Typical serial settings for lab Protocol = Modbus RTU / USS Slave address = 3 Baud rate = 9600 or 19200 Parity = Even Stop bits = 1 Cable = Shielded twisted pair RS485 Termination = ON at both ends only
Daily Practice / Viva
Prepare one screenshot or handwritten note for communication setting, parameter list, wiring check, troubleshooting point and final test result of Day 04.
Softwell SINAMICS G120 — Handwritten M-Step Manual
Macro 17–20 Two-Wire / Three-Wire Control
Practical Outcome: Commission terminal-based two-wire and three-wire control circuits with safe start/stop, jog, direction, fault reset and final viva.
Parameter / Wiring Reference
// Final handover checklist [ ] Correct macro selected [ ] Motor nameplate data verified [ ] Ramp-up / ramp-down tested [ ] DI/AI wiring checked [ ] PROFINET or Modbus tested if used [ ] Fault reset verified [ ] p0971 = 1 EEPROM save done [ ] STARTER backup archived
Daily Practice / Viva
Prepare one screenshot or handwritten note for communication setting, parameter list, wiring check, troubleshooting point and final test result of Day 05.
