Siemens MICROMASTER 420 User Manual (English)

Other manuals for Siemens MICROMASTER 420

Operating Instructions190 pages

Operating Manual28 pages

Reference Manual94 pages

Getting Started Guide44 pages

Questions and Answers:

H
hendrickslisaAug 22, 2025
What to do if Siemens Inverter motor fails to start when the ON command has been given?
- A
  andrew08Aug 22, 2025
  If the Siemens Inverter motor fails to start when the ON command is given, first check that a valid ON signal is present. Also, verify that P0700 = 2 (for digital input control) or P0700 = 1 (for BOP control). Finally, ensure that the setpoint is present (0 to 10V on Terminal 3) or the setpoint has been entered into the correct parameter, depending upon the setpoint source (P1000).
M
Mario GarnerAug 23, 2025
What to do if Siemens Inverter motor fails to run after changing the parameters?
- J
  Jesse NicholsAug 23, 2025
  If the Siemens Inverter motor fails to run after changing the parameters, set P0010 = 30, then P0970 = 1, and press P to reset the inverter to the factory default parameter values. Alternatively, use a switch between terminals 5 and 8 on the control board; the drive should now run to the defined setpoint by analogue input.
D
Dr. Stephanie FrankAug 25, 2025
What to do if Siemens DC Drives show inverter fault?
- S
  Scott KimAug 26, 2025
  If your Siemens DC drive is showing an inverter fault (other than the ones listed), check for other fault indications to identify the root cause.
V
Vernon PerkinsAug 26, 2025
What to do if my Siemens Inverter shows a fault overcurrent?
- X
  Xavier LeeAug 26, 2025
  If your Siemens Inverter indicates a fault overcurrent, inspect the connected load and reduce it if necessary.
F
Frederick Valdez MDAug 27, 2025
What to do if my Siemens MICROMASTER 420 displays fault overvoltage?
- J
  jmaxwellAug 27, 2025
  If the Siemens Inverter displays a fault overvoltage, verify the voltage supply and reduce it if it exceeds specifications.
C
Cristian PachecoAug 29, 2025
How to fix a Siemens Inverter fault related to motor overtemperature?
- R
  Ralph MeyersAug 29, 2025
  To address a Siemens Inverter fault related to motor overtemperature, check for motor overload and ensure adequate cooling.
J
John AcostaAug 30, 2025
What to do if Siemens DC Drives show overcurrent?
- W
  William NunezAug 30, 2025
  If your Siemens DC drive indicates an overcurrent fault, the first step is to inspect the load and system configuration to identify any potential issues.
J
Jesus HortonAug 31, 2025
How to fix inverter overtemperature (internal PTC) in Siemens DC Drives?
- C
  christopherschwartzSep 1, 2025
  If your Siemens DC drive displays an inverter overtemperature warning (internal PTC), ensure that the inverter has proper ventilation and cooling to prevent overheating.
O
ortizmeganSep 2, 2025
What to do if Siemens DC Drives show motor overtemperature by I²t calculation?
- K
  Karen TravisSep 2, 2025
  If your Siemens DC drive reports a motor overtemperature due to I²t calculation, verify the motor load and operating conditions to ensure they are within the motor's specifications.
J
jenniferfieldsSep 3, 2025
Why does my Siemens Inverter say 'Mains not present'?
- A
  Andrew TorresSep 4, 2025
  If your Siemens Inverter indicates that the mains are not present, check the power supply connections.

Siemens MICROMASTER 420 Specifications

General

Power Range	0.12 kW to 11 kW
Output Voltage	0 to input voltage
Input Frequency	47 Hz to 63 Hz
Output Frequency	0 Hz to 650 Hz
Overload Capacity	150% for 60 seconds
Enclosure Rating	IP20
Input Voltage	200 V to 240 V (±10%), 380 V to 480 V (±10%)
Control Type	V/f control
Braking	Optional braking module
Protection Features	Overcurrent, overvoltage, undervoltage, overload, short circuit, ground fault
Cooling	Air-cooled
Ambient Temperature	-10 °C to +50 °C
Communication Interfaces	USS protocol