Operation Manual 37107F
MFR 3 - Multi Function Relay
© Woodward
Page 59/165
Password Protection
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The unit is equipped with a three-level code and configuration hierarchy. This permits multiple levels of access
to configuration screens for different users. A distinction is made between:
Code level 0 (CS0) -
User: Third Party
Only monitoring of measured values is permitted. The configuration of parameters is blocked.
Code level 1 (CS1) -
User: Customer
Monitoring of measured values and select parameters may be changed (e.g. rated power, etc.). Changing a
password is not possible in this level.
Code level 2 (CS2) -
User: Commissioner
The user has complete access to display and change all parameters. The user may also set and change pass-
words for code levels 1 and 2 (see below).
NOTE
Access codes remain active for two hours after the last action is performed, even if the configuration
mode is accessed repeatedly. If an incorrect password is entered, the control unit reverts to code level
CS0 and external users are blocked from accessing the unit (setting of password on page 72). The de-
sired code level may be accessed again by entering the correct password for that code level.
Parameter
8
Enter code
0000
Enter code number
0000 to 9999
To access the configuration mode, the control unit requests the code number that is
specific to a code level. The number in the LC display is a randomly generated
number (RN) and may be confirmed by pressing the "Select" push button. If the
random number is confirmed the code level remains at its current level. Two four-
digit code numbers (0000 to 9999) exist for accessing the code levels or setting up
new pass codes for the users. A pass code is not required for "third party" code lev-
el CS0, as the user does not require access to configuring parameters (protected via
the code).
