Motortech VariStep3, Руководство по эксплуатации

Страница: 38 / 92

7 Functions
38 Rev. 08/2018
7.6 Analysis of Positions via Analog Outputs or Field Bus
The current position of the throttle or the openings of the gas supply for the gas mixer can be
sent to the master control via an analog voltage output or an analog current output or a field
bus. Using the MICT, it is possible to configure which of the two analog outputs is to be used and
which voltage or current value corresponds to the open or close position. The current or voltage
applied on the output is then set accordingly proportional to the current opening of the fuel ring.
You can configure the outputs with the MICT. Refer to the section Inputs/Outputs – Control Setup
on page 56.
7.7 Access Control
You can protect the VariStep3 stepper motor driver against unauthorized access by establishing
the access control in the MICT. The access control has four operating levels, three of which can
be secured with different PINs. As a default setting, the access control is not activated. If the
access control for the stepper motor driver is activated, it is independent from the access levels
that control authorizations within the MICT.
Access control
A user is logged in to the Advanced Service access level on the MICT. He
changes a configuration and would like to download the change to the
stepper motor driver. Although he has the full authorization set in the MICT,
he is prompted to log in with the PIN for the
Level 3 (Master) . This ensures
that it is not possible for any user with an MICT and the generally valid
password to change the configuration of your stepper motor driver.