DLS 125, Original Operating Manual

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BA FlexxPump 125 - 24 V_20181121_EN de 201811 31
External Control
7.2 Output Signals (PIN 4)
This chapter describes the signals which the FlexxPump 125 sends to an external controller.
The following descriptions apply for the factory setting of the parameter E (E0), see 5.1.6 E
(Error / output signal inversion).
7.2.1. Overview of output signals
The FlexxPump 125 sends the following predefined output signals to an external controller.
LCD display Designation Signal Description
ON Ready for
operation
high, permanent FlexxPump 125 is ready for operation
E1 Empty level 0.5 Hz,
square wave
Cartridge is empty
E2 No cartridge low, permanent No cartridge attached
E3 Undervoltage low, permanent Supply voltage is too low
E4 bis E6 not occupied
E7 Overpressure low, permanent Permissible maximum pressure reached
7.2.2. Error E1 (empty)
The error E1 signals that the cartridge is empty.
U
0 V
24 V
t
> 3 s
1 s
PIN 4
Description:
• The electronics in the FlexxPump 125 count the dosing processes according to the used
cartridge. 833 dosing processes are possible when using a 125 cm³ cartridge and 1,666
with a 250 cm³ cartridge.
• The error E1 (empty signal) can only occur after a dosing process, any follow-up dosing is
interrupted.
• The error cannot be acknowledged, the error E1 becomes error E2 after removing the
empty cartridge.