
VersiSafe 9
At the same time the monitoring relay energises (53-54 closes), the semiconductor output „ON“ is
switched on and the LED „OUT“ lights green. During time delay ts this LED flashes.
If the voltage measured on terminals L1-L2-L3 of VersiSafe rises over the adjusted value plus
hysteresis in at least one channel (the motor is switched on or the shaft turns mechanically), the
positive guided output contacts are switched off immediately (contacts 23-24, 33-34 and 43-44
open while contact 11-12 closes). The monitoring relay de-energises (53-54 opens), the semicon-
ductor output „ON“ goes off and the LED OUT“ lights yellow (= Uan over adjusted value).
Feedback circuit X1 - X2
If the safety contacts control external contactors/components (e.g. to re-enforce or multiply the
contacts) the safety function of them must be monitored.
This is done with the feed back circuit (terminals X1-X2) to which the NC contacts of the
contactors/components must be connected. (see also wiring diagrams).
The VersiSafe will only enable its safety output if the feedback loop X1-X2 is closed while stand-
still is detected, i.e. the external contactors/components are in initial state (NC contacts are
closed).
The feedback circuit X1-X2 must be closed as long as the safety outputs because of running
motor or external failure) are not enabled. If not the failure „feedback circuit“ is indicated.
If the feedback circuit is not used, the terminals X1-X2 must be bridged.
6. Technical data
6.1 Input (L1 - L2 - L3)
Measuring-/Motor voltage: max. AC 690 V
Input resistance: 500 kOhm
Response value Uan: 20 mV ... 400 mV, adjustable
special variant 0,2 ... 4V
Response value dependent on frequency
Hysteresis (for detection
of running motor): 100 %
Release delay for detection
of running motor: < 100 ms
Standstill time delay ts: 0,2 ... 6s adjustable
Auxiliary voltage UH
(A1 - A2): AC 230 V, AC 400 V, DC 24 V
Recommended fusing: 2 A
Voltage range
AC: 0,8 ... 1,1 UN
DC: 0,9 ... 1,2 UN
Nominal consumption: 5 VA, 3 W
Input frequency (Hz): 50 100 200 400 600 1k 1,5k 2k
Multiplication factor for Uan:1,0 1,1 1,2 1,5 2,0 2,8 5 8