Pr.111 Deceleration S Curve Setting; Pr.112 External Terminal Scanning Time - Danfoss 176F7300 Manual

The rated voltage of motor is normally AC220/200V, 60Hz/50Hz. The input voltage of
AC motor drive can be AC180V~264V, 50Hz/60Hz. Without auto voltage regulation, if
the input voltage of AC motor drive is AC250V, then the voltage output to the motor is
also AC250V. Under the circumstance that the motor operates with voltage in excess of
rated voltage for 12%~20%, it will cause temperature increase, insulation damage and
unstable torque output. In the long run, the life of the motor will be shortened.
The auto voltage regulation of AC motor drive can stabilize the output power to the
motor rated voltage automatically when the output power exceeds the motor rated
voltage. For example, with V/F curve set as AC200V/50Hz, if the input power is
AC200V~264V, the voltage output to the motor will be stable at AC200V/50Hz, never
exceeding the set voltage. If the input power varies between AC180V and AC220V, the
voltage output to the motor will proportion to the input power.
When we find the motor stops with ramp type, disabling auto voltage regulation will
shorten the deceleration time.
Pr.103 ~ Pr.110 Reserved

Pr.111 Deceleration S curve Setting

Factory Setting d00
Units None
Parameter value d00 ~ d7
This parameter can be set to obtain a slow stop without hard braking. The deceleration
S curve will differ according to the setting value from 1-7. If there is no specific setting of
this parameter, the parameter of acceleration/deceleration S curve is determined by
parameter Pr.14.
When the parameter setting is d00, then the acceleration/deceleration timing is
determined by parameter Pr,14 If the parameter setting is between d01 to d07, then
Pr.14 is set as acceleration, and Pr.111 is deceleration.

Pr.112 External Terminal Scanning Time

Factory Setting d00
Units None
Parameter value d00 ~ d20
This function can screen and protect external terminals when the CPU mis operates due
to the external disturbance. Factory setting of the scanning time is 2ms. For example:
d01; 2ms, d02; 4ms, etc.
It is necessary to change the parameter Pr.77 setting to d02, in order to change the
scanning time when setting this parameter.
VLT
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® MICRO