28 BA FlexxPump 125 - 24 V_20181121_EN de 201811
External Control
7.1.4. Signal 4sec (C pump strokes)
The signal 4sec triggers one or more pump strokes and thus lubrication processes according
to the parameter C setting.
The signal can be repeated after a certain pause time.
U
0 V
24 V
t
4 s
U
0 V
24 V
t
> 3 s
ML
PIN 2
PIN 4
ML ML ... Cx
P P P
Tp: Pause time
ML: Motor running timet
P: Pause between motor runs
Cx: Number of cycles
Description
• The FlexxPump 125 sends a permanent output signal (high level) at PIN 4 to signal
readiness for operation to the controller. This signal must be available uninterruptedly for
at least 4 s before a control signal can be sent to the FlexxPump 125.
• The 24-V signal 4sec (3.9 s ... 4.1 s) can then be sent to the FlexxPump 125.
• After the signal drops to 0 V, the pump’s rst motor run starts and the FlexxPump 125
pumps lubricant.
The motor running time (ML) depends on the lubricant and the counter-pressure
(7 s ... 17 s).
• At the end of the rst pumping process, the FlexxPump 125 sends a pause signal
(P=0.5 s). Then the second motor run starts. The process is repeated C times.
• The FlexxPump 125 can process the next signal 3 s after the end of the Cth motor run at
the earliest (pause time Tp at least (C x 17.5) + 4 s).