Wittenstein LUC+125 - 2-sec Signal (Single Pump Stroke)

Operating manual Lubricator
Revision: 02
2022-D064493
en-25
8.1.2 2sec signal (single pump stroke)
The 2sec signal triggers a single pump stroke and thus a lubrication sequence.
The signal can be repeated after a dwell time.
U
0 V
24 V
t
2 s
Tp
U
0 V
24 V
t
> 3 s > 3 s
ML
PIN 2
PIN 4
Tp: Dwell time
ML: Motor running time
Description
• The lubricator transmits a permanent output signal (high level) on PIN 4 to signal its readiness for
operation to the controller. This signal must be present without interruption for at least 4 seconds
before a control signal can be transmitted to the lubricator.
• The 2sec 24 V signal (1.9 s ... 2.1 s) can then be transmitted to the lubricator.
• After the signal drops to 0 V, the pump motor starts to run and the lubricator pumps lubricant.
The motor running time (ML) depends on the lubricant and the counter pressure (7 s ... 17 s).
 The lubricator can process the next signal at the earliest 3 seconds after the completion of the
motor run (dwell time Tp at least 22 seconds).