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Entek IRD 6652 DSP Protection Monitor
Configuration
RPM 1-3 and RPM 4-6 submenu
The RPM 1-3 and RPM 4-6 submenus have the following options. These options define up
to seven speed bands. RPM 1-3 contains the settings for the first three bands. RPM 4-6
contains the settings for the last four bands. Note the following:
l
There are two settings for each band. This helps prevent alarm relay “chattering,”
which is explained in more detail below.
l
The first band starts at 0 RPM.
l
The seventh speed band is defined as speeds above the sixth band.
The 6652 DSP monitor allows you to set two limits for the edges of a band. The LO limit
defines the upper edge of the band when the machine speed is falling. The HI limit defines
the upper edge of the band when the machine speed is rising. This can prevent alarm relay
“chattering” when the machine speed varies slightly at the edge of a band. For more
information on speed bands, see “Understanding Speed Bands” on page 38.
RANGE1 and RANGE2 submenus
The RANGE1 and RANGE2 submenus have the following options. The options are the
same in the two menus. RANGE 1 contains the channel 1 options. RANGE 2 contains the
channel 2 options.
Factory menu
→
RANGES
→
SPD BND
→
RPM 1-3
RPM1 HI
RPM2 LO
RPM2 HI
RPM3 LO
RPM3 HI
EXIT
RPM1 LO
SET
RPM1 LO
Choose the upper edge of band 1 for falling speed (1–18000 RPM).
RPM1 HI
Choose the upper edge of band 1 for rising speed (1–18000 RPM).
RPM2 LO
Choose the upper edge of band 2 for falling speed (1–18000 RPM).
RPM2 HI
Choose the upper edge of band 2 for rising speed (1–18000 RPM).
RPM3 LO
Choose the upper edge of band 3 for falling speed (1–18000 RPM).
RPM3 HI
Choose the upper edge of band 3 for rising speed (1–18000 RPM).
EXIT
Return to the SPD BND submenu. The monitor remembers the current
values for menu options, but does not write them to memory until you exit
the Factory menu.
Factory menu
→
RANGES
→
RANGE1
UNITS 1
SCALE 1
MULT 1
LP FLT 1
HP FLT 1
NOISE 1
EXIT
TX 1
SET
TX 1
Display the submenu for transducer and display settings for channel 1.
UNITS 1
Choose the units for the monitor display (mil pp, µm pp, mm pp, ins pp).
See the note below this table.
SCALE 1
Display the submenu for the full scale settings for channel 1.
MULT 1
Display the submenu for the alarm multiplier settings for channel 1. These
settings are for the start-up period and for each of the speed bands defined
in the SPD BND submenu (page 24).
LP FLT 1
Choose the low pass filter (40–20000 Hz) for the overall amplitude that
appears in the monitor display and is tested against the alarm levels.
