7 Additional settings
7.18
Limit switch, setpoint direction limitation
The "Setpoint direction limitation" function is activated when a drive reaches a hardware
limit switch. Its purpose is to prevent the drive from continuing to move in the direction of
the limit switch (e.g. because of a new setpoint value issued by a superordinate control
system). When the setpoint direction limitation function is active, the drive can only move
in the opposite direction.
When the drive has left the limit switch, the setpoint direction limitation function can be
deactivated by way of an error acknowledgement. This can be realised via a fieldbus, the
parameterisation program or a falling edge at the digital input for enabling the servo drive (if
configured).
7.19
Firmware download
The firmware is the operating program of the servo drive. The servo drives come supplied
with the current firmware as standard. However, older servo drives can benefit from new
features by way of a firmware update.
Select a suitable firmware file under
File/Firmware download
.If the selected firmware file
is not suitable for the device, a corresponding message will be displayed. This may be the
case, for example, if the firmware is intended for a different device series.
The firmware download itself is a completely automatic process. Do not interrupt the
power supply during the firmware update. If this is the case, an error message will be
displayed. The servo drive will be reset and restarted with the old firmware.
Firmware download via a microSD card
The firmware of the servo drives can also be updated via a microSD card. With this
method, several servo drives can be supplied with a new firmware very quickly. If a
suitable firmware file is available on the microSD card, it will be automatically identified by
the servo drive. Then, the servo drive downloads the firmware, provided that it has not
already been loaded into the device. If there is more than one firmware file on the microSD
card, the most recent file will be used.
Product manual BL 4000-C
Page 192 of 298