Description of the Software Modules and Parameters
Parameter manual
b maXX
BM5800
Document No.: 5.16029.03
679
3
6.14
Velocity window percentage
The percentage parameter relates to the current speed set value total (
used for generation of the "N
act
= N
set
" message in Speed controller status (
bit 12).
Condition for "N
act
= N
set
" :
e2 Speed error
Velocity window percentage
In addition to
both absolute limits (
) are used for generation of
"N
act
= N
set
"! For details see the description of
Speed controller status.
Velocity window percentage is not used for generation of
"N
act
= N
set
" message.
6.20
Blockade speed limit
Standstill threshold for blockage monitoring.
The blockage monitoring detects a block when the speed control is at the current limit and
the drive at the same time at standstill (|N
act
| < Blockade Speed Limit).
The threshold for the actual speed under which the drive is assumed to be blocked can
be set under this parameter.
This speed threshold must be adapted depending on the motor or encoder system (es-
pecially at resolver). The threshold must be higher than the variation of the speed actual
value in standstill.
An adjustable hysteresis (
) is used for the condition speed controller at current
limit. In particular at motors with resolver and at little speed set value it can be necessary
to adapt this hysteresis because the speed controller is possibly not permanently at the
current limit.
The clock of the blockage monitoring is
2
ms.
6.21
Blockade time limit 1
Warning threshold for the time of blockage monitoring.
If the conditions for blocking have been met, a warning (Code No. 209) will be triggered
upon expiration of the set blockade time limit 1. If the conditions for blocking are no longer
met, the warning 209 will be canceled by the controller.
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