Emerson M820B Manuel D’Utilisation
User Instructions
UM1M820BNA
Spec No. 1M820BNA (Model M820B)
Issue AH, March 4, 2013
Spec No. 1M820DNA (Model M820D)
Chapter 3. Local Display Menus
101
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"DC" Parameter Settings:
Shunt Current: Enter the load shunt
’s current rating.
Shunt Voltage: Enter the load shunt
’s voltage rating.
LoadShuntExist: Select whether a load shunt exists or not.
LVD
LVD Group Menu
Menu Navigation: Main Menu / Settings / LVD / LVD Group
Note: For WEB Interface; menu items are found under Device Information / LVD Group / Settings
Tab.
Note: For WEB Interface; menu items are found under Device Information / LVD Group / Settings
Tab.
Note: This feature requires a BTRM sensor. The BTRM sensor is the sensor which is used for the
High Temperature Disconnect (HTD) Feature.
"LVD Group" Parameter Settings:
HTD Recon Point: Sets temperature at which a reconnect will occur following a High
Temperature Disconnect.
Temperature Disconnect.
HTD Point: Sets high temperature limit at which LVD1 and/or LVD2 contactors will open
(disconnect) if the HTD1 and/or HTD2 features are enabled. If this temperature is reached,
a disconnect occurs regardless of voltage.
(disconnect) if the HTD1 and/or HTD2 features are enabled. If this temperature is reached,
a disconnect occurs regardless of voltage.
LVD Unit Menu
Menu Navigation: Main Menu / Settings / LVD / LVD Unit
Note: For WEB Interface; menu items are found under Device Information / LVD Group / LVD Unit
/ Settings Tab.
Note: For WEB Interface; menu items are found under Device Information / LVD Group / LVD Unit
/ Settings Tab.
"LVD Unit" Parameter Settings:
LVD1: Enables or disables LVD1.
LVD1 Mode: Sets LVD1 to disconnect on a voltage or time setpoint.
LVD1 Volt: LVD1 low voltage disconnect setting (when LVD set for voltage).
LVD1 Recon Volt: LVD1 reconnect setting (when LVD set for voltage).
LVD1 ReconDelay: Delay time period until LVD1 reconnects once voltage recovers
(when LVD set for voltage).
(when LVD set for voltage).
LVD1 Time: The time period before LVD1 disconnection once an AC fail condition
occurs (when LVD set for time).
occurs (when LVD set for time).
LVD1 Dependency: Select if LVD1 can disconnect only if LVD2 has disconnected, or
none.
none.
LVD2: Enables or disables LVD2.
LVD2 Mode: Sets LVD2 to disconnect on a voltage or time setpoint.
LVD2 Volt: LVD2 low voltage disconnect setting (when LVD set for voltage).
LVD2 Recon Volt: LVD2 reconnect setting (when LVD set for voltage).
LVD2 ReconDelay: Delay time period until LVD2 reconnects once voltage recovers
(when LVD set for voltage).
(when LVD set for voltage).
LVD2 Time: The time period before LVD2 disconnection once an AC fail condition
occurs (when LVD set for time).
occurs (when LVD set for time).
LVD2 Dependency: Select if LVD2 can disconnect only if LVD1 has disconnected, or
none.
none.