Configuration
Entek IRD 6652 DSP Protection Monitor
39
In summary:
l
To choose the number of speed bands, use the SPD BND submenu
(Factory menu
→
RANGES
→
SPD BND) described on page 24.
l
To choose the alarm actions for each speed band, use the BND ACT submenu
(Factory menu
→
RANGES
→
SPD BND
→
BND ACT) described on page 25.
l
To choose the speed bands limits, use the RPM 1-3 and RPM 4-6 submenus
(Factory menu
→
RANGES
→
SPD BND
→
RPM 1-3) described on page 26.
l
To choose the alarm setpoint multipliers, use the MULT 1 and MULT 2 submenus
(Factory menu
→
RANGES
→
RANGE 1
→
MULT 1) described on page 29.
l
Speed bands require a 1x tachometer signal, and TACHO set to YES in the TX OK
submenu (Factory menu
→
TX OK) described on page 30.
Understanding Transient Monitoring
Transient monitoring gives you the ability to analyze changes in the 1x, 2x, and 3x
amplitude and phase values as a machine changes speed. Usually transient monitoring is
performed during machine run-up or coast-down. The 6652 DSP monitor allows you to
define the speed range over which to perform transient monitoring, as well as the number of
“steps.” The 6652 DSP allows you to divide the transient speed range into as many as 300
equal steps. The minimum speed change between steps is 8 RPM. When the 6652 DSP is
performing transient monitoring, the TRANS status message appears on the display.
Note:
In order to perform transient monitoring, the 6652 DSP monitor requires a 1x tachometer
input signal.
You can retrieve the transient data from the monitor using the MODBUS protocol through a
4-wire multi-drop serial interface. MODBUS communications are described in the manual
on 6600 monitor communications.
In summary:
l
To choose the speed range for transient monitoring as well as the number of steps, use
the TRANS submenu (Factory menu
→
ANALYZE
→
TRANS) described on page 35.
l
Transient monitoring requires a 1x tachometer signal, and TACHO set to YES in the
TX OK submenu (Factory menu
→
TX OK) described on page 30.
