Siemens CM220/3 User Manual

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4. Clear Text Display Module & System Parameters

05.02.01

Parameter Function

Range

[Default]

Description / Notes

P018

••••

Automatic restart after fault

0 - 1

[0]

Automatic restart after fault:

0 = Disabled
1 = The inverter will attempt to restart up to 5 times after a fault.

If the fault is not cleared after the 5th attempt, the inverter

will remain in the fault state until reset.

There is an increasing time delay between each restart

attempt.

P019

••••

Skip frequency bandwidth (Hz)

0 - 10.00

[2.00]

Frequencies set by P014, P027, P028 or P029 that are within +/- the

value of P019 are suppressed.

P020

Flying start ramp time (seconds) 0.50 - 25.0

[5.0]

Used in conjunction with P016 (set longer times if persistent F002

trips occur).

P021

••••

Minimum analogue frequency

(Hz)

0 - 120.00

[0.00]

Frequency corresponding to the lowest analogue input value, i.e.

0 V / 0 mA or 2 V / 4 mA. This can be set to a higher value than P022

to give an inverse relationship between analogue input and frequency

output (see diagram in P022).

P022

••••

Maximum analogue frequency

(Hz)

0 - 120.00

[50.00]

Frequency corresponding to the highest analogue input value, i.e.

10 V / 20 mA, determined by P023. This can be set to a lower value

than P021 to give an inverse relationship between analogue input and

frequency output.
i.e.

Note: The output frequency is limited by values entered for

P012/P013.

P023

••••

Analogue input type

0 - 2

[2]

Selects analogue input type according to the setting of jumpers

JP300/JP301:
JP301 closed

JP300 closed

0 = 0 V to 10 V

0 mA to 20 mA

1 = 2 V to 10 V

4 mA to 20 mA

2 = [2 V* to 10 V]

4 mA* to 20 mA

* The inverter will come to a controlled stop if V < 1 V or 2 mA.

WARNING: The motor can automatically run without a

potentiometer or voltage source connected

between pins 3 and 4.
With P023=2, the motor will automatically start

when V exceeds 2 V. This equally applies to

analogue and digital control (i.e. P006 = 0 or 1).

P024

••••

Analogue setpoint addition

0 - 2

[0]

If the inverter is not in analogue mode (P006 = 0 or 2), setting this

parameter to ‘1’ causes the analogue input value to be added.

0 = No addition.
1 = Addition of the analogue setpoint (defined by P023) to the

fixed frequency or the motor potentiometer frequency.

2 = Scaling of digital/fixed setpoint by analogue input (P023) in

the range 0 - 100%.

Note:

By selecting a combination of reversed negative fixed

frequency settings and analogue setpoint addition, it is

possible to configure the inverter for ‘centre zero’ operation

with a +/-5 V supply or a 0 - 10 V potentiometer so that the

output frequency can be 0 Hz at any position, including the

centre position.

V / I

P021

P022