Leroy-Somer Digidrive SK Serie Guía De Usuario página 74

Français
No Function
30
Ramp mode select
0: Fast ramp selected
1: Standard ramp with normal motor voltage selected
2: Standard ramp with high motor voltage selected
3: Fast ramp with high motor voltage selected
Fast ramp is linear deceleration at programmed rate, normally used when a braking
resistor is fitted.
Standard ramp is controlled deceleration to prevent DC bus over-voltage trips, normally
used when there is no braking resistor fitted.
If a high motor voltage mode is selected, deceleration rates can be faster for a given
inertia but motor temperatures will be higher.
No Function
31
Stop mode select
0: Coast to stop selected
1: Ramp to stop selected
2: Ramp to stop with 1 second DC injection braking
3: DC injection braking with detection of zero speed
4: Time DC injection braking
See the Digidrive SK Advanced User Guide.
No Function
32
Dynamic V to f select
OFF:Fixed linear voltage to frequency ratio (constant torque - standard load)
On: Voltage to frequency ratio dependant on load current (dynamic/variable torque/
load). This gives a higher motor efficiency.
No Function
33
Catch a spinning motor select
0: Disabled
1: Detect positive and negative frequencies
2: Detect positive frequencies only
3: Detect negative frequencies only
If the drive is to be configured in fixed boost mode (Pr 41 = Fd or SrE) with catch a
spinning motor software enabled, an autotune (see Pr 38 on page 75) must be carried
out to measure the motor's stator resistance beforehand. If a stator resistance is not
measured, the drive may trip on OV and OI.AC while trying to catch a spinning motor.
No Function
34
Terminal B7 mode select
dig: Digital input
th: Motor thermistor input, connect as per diagram below
Fr: Frequency input. See Digidrive SK Advanced User Guide.
Fr.hr: High resolution frequency input. See Digidrive SK Advanced User Guide.
Figure 6-11
74
English Deutsch
OFF (0) or On (1)
T1 0V
Motor thermistor
B7
input
Italiano
Range
0 to 3
Range
0 to 4
Range
Range
0 to 3
Range
dig, th, Fr, Fr.hr
Digidrive SK Getting Started Guide
Español
Defaults Type
1 RW
Defaults Type
1 RW
Defaults Type
On (1) RW
Defaults Type
0 RW
Defaults Type
dig RW
Issue Number: a