Eurotherm 590L Series, Руководство по эксплуатации продукта, Страница: 75 / 170

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An alarm message will be displayed on the MMI when the unit is tripped.
•
The Converter has tripped.
The top line indicates a trip has occurred while
the bottom line gives the reason for the trip.
See example opposite.
Acknowledge the trip message by pressing the E
key.
Refer to Chapter 7: “Trips and Fault Finding” for trip messages and reasons.
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Hold down the M key to enter the DIAGNOSTICS menu in the first entry, SPEED DEMAND.
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A special key combination restores ALL default parameters to the Converter.
•
Hold down the four MMI keys (
↑↑↑↑
,
↓↓↓↓
, E, M), then power-up the Converter.
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For ease of operation there are two 'viewing levels' for the MMI: full view or reduced view. The
setting for the viewing level decides how much of the menu system will be displayed.
Refer to “The Menu System Map”, page 5-4 to see how the viewing level changes the displayed
menu.
To change the viewing level, go to the MENUS menu. The first parameter in this menu, FULL
MENUS selects the viewing level.
•
Select DISABLED to use the reduced menu system.
•
Select ENABLED to use the full menu system.
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When in force, the password prevents unauthorised parameter modification by making all
parameters “read-only”. If you attempt to modify a password protected parameter, it will cause
“PASSWORD ??” to flash on the display. By default, the password feature is disabled, i.e.
0x0000.
There are two password parameters, stored in the PASSWORD menu at level 1:
ENTER PASSWORD and CHANGE PASSWORD.
The ENTER PASSWORD and CHANGE PASSWORD values are hidden by “XXXX” until you
press the M key to begin editing the parameter.
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1. Use the
↑↑↑↑
(UP) and
↓↓↓↓
(DOWN) keys in the CHANGE
PASSWORD parameter to set a password (anything
other than 0000). Press the E key to exit the parameter.
2. Move to the ENTER PASSWORD parameter. Enter
any number other than the password and press the E
key to exit. The system is now `password locked’.
Having activated the password protection, you can no
longer edit the CHANGE PASSWORD parameter until
you deactivate the password protection.
4
4
HEATSINK TRIP
* * * ALARM * * *
1
1
0x0000
CHANGE PASSWORD
1
1
0x0000
ENTER PASSWORD