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4.

Clear Text Display Module & System Parameters

 

 

 

 

 

 

 

 

Parameter

Function

Range

Description / Notes

 

 

 

 

 

[Default]

 

 

 

 

 

 

P018 •

Automatic restart after fault

0 - 1

Automatic restart after fault:

 

 

 

 

 

[0]

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

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

 

 

[2.00]

value of P019 are suppressed.

 

P020

Flying start ramp time (seconds)

0.50 - 25.0

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

 

 

[5.0]

trips occur).

 

 

 

 

P021 •

Minimum analogue frequency

0 - 120.00

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

 

(Hz)

[0.00]

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

0 - 120.00

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

 

(Hz)

[50.00]

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.

f

P021

 

 

 

 

 

 

 

 

P022

 

 

 

 

 

 

 

 

 

 

 

 

P022

 

 

 

 

 

P021

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Note:

 

 

V / I

 

 

 

The output frequency is limited by values entered for

 

 

 

 

P012/P013.

 

 

 

P023 •

Analogue input type

0 - 2

Selects analogue input type according to the setting of jumpers

 

 

[2]

JP300/JP301:

 

 

 

 

 

 

 

JP301 closed

OR

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

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

 

 

[0]

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

 

 

 

Note:

the range 0 - 100%.

 

 

 

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.

 

 

 

 

© STÖBER plc 1998

05.02.01

18