Siemens CM300/3 User Manual download pdf (Page 25)

4. Clear Text Display Module & System Parameters English

05.02.01

Parameter Function Range

[Default]

Description / Notes

P078 •

••

•

Continuous boost (%) 0 - 250

[100]

Operates continuously over the whole frequency range.

For many applications it is necessary to increase low frequency

torque. This parameter sets the start-up voltage at 0 Hz to adjust the

available torque for low frequency operation. 100% setting will

produce rated motor current at low frequencies.

WARNING: If P078 is set too high, overheating of the motor

and/or an overcurrent trip (F002) can occur.

P079 •

••

•

Starting boost (%) 0 - 250

[0]

For drives which require a high initial starting torque, it is possible to

set an additional current (added to the setting in P078) during

ramping. This is only effective during initial start up and until the

frequency setpoint is reached.

Note: This increase is in addition to P078, but the total is limited to

250%.

P081

Nominal frequency for motor

(Hz)

0 - 120.00

[]

P082

Nominal speed for motor (RPM)

0 - 9999

[]

P083

Nominal current for motor (A)

0.1 - 99.9

[]

‘These parameters are set in the factory and should not be changed

under normal circumstances.

P084

Nominal voltage for motor (V)

0 - 1000

[]

P085

Nominal power for motor

(kW/hp)

0 - 100.0

[]

P086 •

••

•

Motor current limit (%) 0 - 250

[150]

The motor current can be limited with this parameter. If the set value

is exceeded, the output frequency is reduced until the current falls

below this limit. During this process, both LEDs will flash (see section

3.6).

P087

Motor PTC enable 0 - 1

[0]

Change this parameter only when the PTC option is fitted.

0 = Disabled

1 = Motor PTC enabled

Note: If P087 = 1 and the PTC input goes high then the inverter will

trip (fault code F004). Note that if the internal PTC gets too

hot, the inverter will trip (fault code F005).

P089 •

••

•

Stator resistance (Ω)

0.01-

100.00

[]

Set in the factory. Do not adjust!

P091 •

••

•

Serial link slave address 0 - 30

[0]

Up to 31 CombiDrive

can be connected via the serial link and

controlled by a computer or PLC using the USS protocol. This

parameter sets a unique address for the inverter.

P092 •

••

•

Serial link baud rate 3 - 7

[6]

Sets the baud rate of the RS485 serial interface (USS protocol):

3 = 1200 baud

4 = 2400 baud

5 = 4800 baud

6 = 9600 baud

7 = 19200 baud

Note: Some RS232 to RS485 converters are not capable of

baud rates higher than 4800.

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Siemens CM300/3 User Manual Page 25

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