Kübler SMC1.3, Safety Manual

Page: 190 / 235

R60047.0002 - Index 2 EN – page 70 / 115
12.7 Frequency Band (Switch Mode = 6)
With parameter setting “Switch Mode” = 6, the frequency is monitored within a frequency
band.
The function is always active. The switching positions inside the frequency band are at
/- Hysteresis. Only positive Presel values are allowed.
Relevant Parameters Remark
„Switch Mode “
= 6
„Pulse Time “
statically = 0 or pulse duration in x seconds
„Hysteresis “
+/-range from the center point (Presel. Value)
„Startup Mode“ type of start-up delay
„Startup Output“ output assignment for start-up delay
„Lock Output“ lock function
„Output Mode“ homogenous or inverse output configuration (affects the Safety Integrity
Level SIL/PL)
„Presel. . “
center
„Delay “
shutter release delay
„Input Mode “
configuration of the control inputs (affects the safety level SIL/PL)
„ IN Function“
function of the control input
„ IN Config“
switching behaviour (single-channel, two-channel, inverse, homogeneous,
dynamic, static)
„GPI Err Time“ Max. permissible delay time during illegal conditions
Relevant input functions Remark
Clear lock function, e.g. parameter „IN1 Function“ = 1 … 6 When lock function is active only
Switchover switching points, e.g. parameter „IN2 Function“ = 13 Only when switchover is active
Example:
With Presel = 1000.0 Hz and Hysteresis = 10 %, frequencies f < 900 Hz are declared as underspeed
and frequencies f > 1100 Hz as overspeed.