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8
Basic drive functions (MCK)
8.11
Override
602
Lenze · 8400 HighLine · Reference manual · DMS 12.0 EN · 06/2017 · TD23
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8.11.1
Speed override
Activate override
If control bit 11 (
EnableSpeedOverride
) has been set to "1" in the
, a speed override
is carried out in accordance with the stipulated override value.
If the
Motion Control Kernel
is downstream from the
MCKInterface
in the circuit, the
provides the following process input for activating the speed override:
Stipulate override value
The override value is selected via the
nSpeedOverride_a
input at the SB
.
The override value is a percentage of the speed of the current profile.
Deactivate override
If control bit 11 (
EnableSpeedOverride
) is reset to "0", travelling takes place at the speeds that have
been specified by means of the profile parameters. Acceleration/deceleration from the speed
defined with override to the speed set in the profile takes places immediately in this case.
Deactivating the override within the braking/deceleration ramp does not have any effect.
Designator
Data type
Information/possible settings
bEnableVelOverride
BOOL
Speed override
TRUE Activate speed override
Designator
Data type
Information/possible settings
nSpeedOverride_a
INT
Value for speed override
• Percentage multiplier (0 ... 199.99 %) for the currently active speed.
• 16384
≡
100 % of the maximum traversing speed (display in
• If the override value is 0 %, the drive is brought to a standstill.
Note!
If the value of a speed override is greater than the speed limitation value
in the
motor control, a following error is generated.
should always be parameterised
greater than or equalling the max. possible speed override value.