NetSure
™
Control Unit (NCU)
User Manual, UM1M830BNA
Spec. No: 1M830BNA, 1M830DNA Code: UM1M830BNA
Model No: M830B, M830D Revision M, May 12, 2017
HTD Recon Point: Sets temperature at which a reconnect
will occur following a High Temperature Disconnect.
LVD 1: Enables or disables LVD1.
LVD 1 Mode: Sets LVD1 to disconnect on a voltage or
time setpoint.
LVD 1 Disc Volt: LVD1 low voltage disconnect setting
(when LVD set for voltage).
LVD1 Recon Volt: LVD1 reconnect setting (when LVD set
for voltage).
LVD 1 Time: The time period before LVD1 disconnection
once an AC fail condition occurs (when LVD set for time).
LVD 1 HTD: Enables or disables the High Temperature 1
Disconnect feature. This feature causes LVD1 contactors
to open (disconnect) if a high temperature event occurs.
LVD 2: Enables or disables LVD2.
LVD 2 Mode: Sets LVD2 to disconnect on a voltage or
time setpoint.
LVD 2 Disc Volt: LVD2 low voltage disconnect setting
(when LVD set for voltage).
LVD 2 Recon Volt: LVD2 reconnect setting (when LVD set
for voltage).
LVD 2 Time: The time period before LVD2 disconnection
once an AC fail condition occurs (when LVD set for time).
LVD 2 HTD: Enables or disables the High Temperature 2
Disconnect feature. This feature causes LVD2 contactors
to open (disconnect) if a high temperature event occurs.
AC SETTINGS SUB-MENU
Nominal AC Volt: Enter the nominal line-to-neutral
voltage (single phase rectifier) or nominal line-to-line
voltage (three phase rectifier).
Mains Fail Alm1: Sets the Mains Fail Alarm 1 value
(percent of nominal).
Mains Fail Alm2: Sets the Mains Fail Alarm 2 value
(percent of nominal).
Corresponding Alarms:
Phase A Voltage Low 1 (Nominal Minus "Mains Fail
Alarm 1 Percent of Nominal)
Phase A Voltage Low 2 (Nominal Minus " Mains Fail
Alarm 2 Percent of Nominal)
Phase A Voltage High 1 (Nominal Plus " Mains Fail
Alarm 1 Percent of Nominal)
Phase A Voltage High 2 (Nominal Plus "V Mains Fail
Alarm 2 Percent of Nominal)
Phase A used in the example above, Phase B and Phase C
are similar.
SYS SETTINGS SUB-MENU
LCD Language: Select the language the menus are
displayed in.
Keypad Voice: Sets the keypad sound on or off.
Date: Sets the date. Refer to “Changing the Date and
Time” on page 21 for a procedure to change the date.
Time: Sets the time. Refer to “Changing the Date and
Time” on page 21 for a procedure to change the time.
LCD Rotation: Sets the rotation of the text in the menus
(allowing the controller to be mounted in different
orientations).
o 0 deg: Display will be in the horizontal position
(M830B only).
o 90 deg: Display will be in the vertical position (NCU
controller mounted 90 deg clockwise) (M830B only).
o Big Screen: Setting for M830D only.
Restore Default: Restores the controller’s default
settings.
Update App: Updates the controller’s application.
COMM SETTINGS SUB-MENU
DHCP: The DHCP function allows the controller to
acquire an IP address automatically. This function can
only be enabled or disabled via the local display and
keypad. If this function is enabled and the acquisition of
an IP address fails, an alarm is generated. If the
acquisition of an IP address is successful, you need to
record the IP address automatically acquired by the
controller to access the controller via the Web Interface.
This IP address is displayed in the IP Address field below
the DHCP setting in the local display menu (Main Menu /
Settings Icon / Comm Settings).
IP Address: Sets the controller's IPv4 address. Enter the
address in the format nnn.nnn.nnn.nnn, where
0 ≤ nnn ≤ 255. The address must be a valid address and
must not be 255.255.255.255.
Mask: Sets the controller's IPv4 network netmask. Enter
the address in the format nnn.nnn.nnn.nnn, where
0 ≤ nnn ≤ 255.
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