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5. SYSTEM PARAMETERS

5. SYSTEM PARAMETERS

Parameters can be changed and set using the membrane-type buttons to adjust the desired properties of the inverter, such as ramp times, minimum and maximum frequencies etc. The parameter numbers selected and the setting of the parameter values are indicated in the four digit LED display.

Note: If you press the Δ or button momentarily, the values change step by step. If you keep the buttons pressed for a longer time, the values scroll through rapidly.

Access to parameters is determined by the value set in P009. Check that the key parameters necessary for your application have been programmed.

Note: In the following parameter table:

’ Indicates parameters that can be changed during operation.

’ Indicates that the value of this factory setting depends on the rating of the inverter.

To increase the resolution to 0.01 when changing frequency parameters, instead of pressing P momentarily to return to the parameter display, keep the button pressed until the display changes to ‘- -.n0’ (n = the current tenths value, e.g. if the parameter value = ‘055.8’ then n = 8). PressΔ or to change the value (all values between .00 and .99 are valid) and then press P twice to return to the parameter display.

If parameters are changed accidentally, all parameters can be reset to their default values by setting parameter P944 to 1 and then pressing P.

G85139-H1750-U049-B

© Siemens plc 1997

26/09/97

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Siemens G85139 operating instructions System Parameters