Danfoss VLT MCB 150 Operating Instructions Manual page 45

General Parameter Set-up
Group Group Name Parameter
42-4* SS1 42-40 Type
42-41 Ramp Profile
42-42 Delay Time
42-43 Delta T
42-44 Deceleration
Rate
42-45 Delta V
42-46 Zero Speed
42-47 Ramp Time
42-48 S-ramp Ratio
at Decel. Start
42-49 S-ramp Ratio
at Decel. End
MG34W302
Operating Instructions
Value range/ Default
available choices
[0] Delay [0] Delay
[1] Ramp (slope)
[2] Ramp (time)
[0] Linear [0] Safe Option
[2] S-ramp Const Linear
Time
0.1 - 3600.0 s 1.0 s
0 - 99 % 2%
1 - 30000 RPM/s 1500 RPM/s
1 - 10000 RPM 120 RPM
1 - 600 RPM 10 RPM
0.1 - 3600.0 s 1.0 s
1 to (100 - 42-49 S- 50%
ramp Ratio at
Decel. End) %
1 to (100 - 42-48) % 50%
Danfoss A/S © Rev. 2014-02-11 All rights reserved.
Description Conversion
index
The type of the SS1 -
Safety Function.
The ramp profile for -
a SS1 Delay can be
either specified as
linear or S-ramp.
Time until STO is -1
activated
Δ T subtracts from
0
the time in
42-42 Delay Time to
get motor to stop
before the timer
expires.
Deceleration rate for 0
the SS1 slope based
ramp type.
Tolerance between 67
calculated and actual
speed that the safety
option allows.
When this speed is 67
reached, the safety
option activates the
STO.
Time to ramp down -1
to 0 RPM
The proportion of the 0
total ramp-down time
(42-42 Delay Time)
where the
deceleration torque
increases. The larger
the percentage value,
the greater the jerk
compensation
achieved, and thus
the lower the torque
jerks in the
application.
The proportion of the 0
total ramp-down time
(42-42 Delay Time)
where the
deceleration torque
decreases. The larger
the percentage value,
the greater the jerk
compensation
achieved, and thus
the lower the torque
jerks in the
application.
Data type
u_int8
u_int8
u_int16
u_int8
6 6
u_int16
u_int16
u_int16
u_int16
u_int8
u_int8
43