nvent 910 Series Installation, Operating And Maintenance Instructions page 47

Main Menu") to lock out Operator Console configuration modification access. The display will
confirm the operation by displaying a "DATABASE LOCKED" message.
IMPORTANT: Operator Console configuration modification access will automatically re-lock
after approximately 5 minutes of keypad inactivity.
5.7.3 UNLOCK DATABASE
Purpose: If a PASSCODE has been enabled (PASSCODE is not set to 0) and the user wants to
modify any of the controller's configuration parameters using a the Operator Console, then the
database must first be unlocked.
Procedure: Try modifying any configuration parameter, or select the UNLOCK DATABASE
function (at the end of the "Configuration Mode Main Menu"), and a prompt for the PASSCODE
will appear. If the correct PASSCODE is entered then the display will confirm the operation by
displaying a DATABASE UNLOCKED message.
5.7.4 TEST TRACING
Purpose: The TEST TRACING feature provides an easy method of temporarily overriding the
temperature control, without having to modify the CONTROL SETPOINT temperature or any
other configuration parameter.
Procedure: Press the TEST key on the Operator Console or select the TEST TRACING function
to force the output switch on for approximately 30 seconds. After the test time has expired, the
unit will automatically revert back to normal operation.
IMPORTANT:
• This feature only overrides temperature control; it does not override other control parameters
such as power limiting.
• If load shedding is active then TEST TRACING is inhibited.
5.7.5 DISPLAY TEST
Purpose: The DISPLAY TEST feature provides an easy method of illuminating each display
segment and all the LEDs of the Operator Console to ensure that they are functioning properly.
Procedure: Select DISPLAY TEST and watch the Operator Console to verify that each display
segment and each LED is illuminated during the test sequence.
Note: Pressing any key on the Operator Console keypad during the DISPLAY TEST will cause
the DISPLAY TEST to abort.
5.7.6 LOAD DEFAULTS
Purpose: To provide a quick method of setting all of the controller's configuration parameters
to the factory default configuration parameters, as defined in Appendix G. In additional, all of
the maintenance data parameters are reset. Note that all load shedding parameters (including
fail safe) are configured with default values. The CONSOLE SETPOINT MAXIMUM and
MINIMUM are also configured with default values.
Procedure: Select the LOAD DEFAULTS function (in the "Miscellaneous Setup" submenu) using
the Operator Console keypad.
IMPORTANT: This function will also overwrite the communication configuration parameters,
which could affect existing communications to the controller.
5.7.7 FEATURE MODE
Purpose: Provides two types of menus on the Operator Console for configuring the 910.
Setting: BASIC or ADVANCED
Procedure: Select BASIC if access to only the seven most common parameters is required.
Select ADVANCED if access to all of the 910 parameters is required.
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