Siemens CM300/3 User Manual download pdf (Page 14)

English 3. Operating Information

05.02.01

3.6 If the Motor Does Not Start Up

Check the LEDs on the side of the inverter:

LED State CombiDrive

Status

Green Yellow

ON ON Mains power on, CombiDrive

not running (STANDBY)

ON OFF CombiDrive

running, as per control commands (ON)

Flashing Flashing Current limit warning

Flashing ON CombiDrive

overtemperature

ON Flashing Motor overtemperature

OFF ON Other fault (e.g. tripped)

OFF Flashing Mains undervoltage

OFF OFF Mains supply fault (e.g. faulty external switch)

If a fault occurs: switch off, disconnect and then reconnect the power and then switch on again. Switch off if

the fault condition persists. Trips can be reset by connecting a switch to DIN3 (see parameter P053).

If a warning occurs: switch off, disconnect and reconnect the power and then switch on again.

In either of the above cases, if the fault/warning persists then further investigation requires an OPm2 or a serial

link connection.

3.7 Local and Remote Control

The inverter can be controlled either locally (default), or remotely via a USS data line connected to the internal

RS485 telephone socket (SK200).

When local control is used (P910 = 0), the motor can only be controlled via the internal potentiometer or the

control terminals. Control commands, setpoints or parameter changes received via the RS485 interface have

no effect.

For remote control, the serial interface is designed as a 2-wire connection for bi-directional data transmission.

Refer to parameter P910 in section 4 for the available remote control options.

When operating via remote control the inverter will not accept control commands from the terminals.

Exception: OFF2 or OFF3 can be activated via parameter P051 to P053 (refer to parameters P051 to P053 in

section 4).

Several CombiDrive

can be connected to an external control unit at the same time and can be addressed

individually.

Note: If the inverter has been set up to operate via the serial link but does not run when an ON command is

received, try reversing the connections to terminals 3 and 4 on SK200.

For further information, refer to the following documents:

E20125-B0001-S302-A1 Application of the USS Protocol in SIMOVERT Units 6SE21 and

MICROMASTER (German)

E20125-B0001-S302-A1-7600 Application of the USS Protocol in SIMOVERT Units 6SE21 and

MICROMASTER (English)

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Siemens CM300/3 User Manual Page 14

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