Parameterizing A Switching Signal (Sscx) - Pepperl+Fuchs VIM3 IO Series Manual

VIM3*-IO-* Vibration Sensors
Process Data Structure
7.1

Parameterizing a Switching Signal (SSCx)

Two independent switching signals (SSC) can be parameterized for each measured variable.
The principle for parameterization is the same for each measured variable (SSC).
The figure below illustrates the relationships:
Process data
MDC1 - Velocity RMS
MDC2- Acceleration RMS
MDC3- Acceleration Peak
MDC4 - Temperature
Figure 7.2
For example, the SCC1.1 switching signal can be used to monitor the vibration velocity "Veloc-
ity RMS." Two independent measured value limits (SP1 and SP2) can be set for monitoring a
measurement range. This mode can also be used to switch between monitoring a measure-
ment range and monitoring an individual point. You can use "Off Delay" to set a delay time for
how long the measured value limit can be minimally exceeded before the switching signal
responds. This is done to prevent the SSCx switching signal from switching back and forth.
This concept is implemented for each SSCx. The appropriate parameters are available and can
be set independently of each other.
Parameter for setting SSC
vRMS SP1 vRMS Logic
(0x40.1) (0x41.1)
vRMS SP2 vRMS Mode
(0x40.2)
(0x41.2)
Parameter for setting SSC
vRMS SP1 vRMS Logic
(0x44.1) (0x45.1)
vRMS SP2 vRMS Mode
(0x44.2)
(0x45.2)
...
...
Maintenance Status Diag
Process data
SSC1.1
vRMS Off Delay
SSC1.2
(0x54)
SSC2.1
vRMS Off Delay
(0x56)
SSC2.2
SSC3.1
SSC3.2
SSC3.1
SSC3.2
Maintenance request
Same as in Device Status
17