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