GUDEL FlexxPump4 N, Operating Manual

Page: 67 / 177

5.6.3.3 General error
The following is a non-exhaustive of causes which can cause a general error:
• Overpressure in the lubricant lines
• the power supply is outside of the specified parameters (undervoltage / overvoltage)
• internal error in lubrication system
If a general error is at hand, the lubrication system will send the following signal to PIN 4:
Input signal PIN 2
Output signal PIN 4
U
U
+24 V
(High)
+ 0 V
(Low)
(Low)
+ 0 V
(High)
+24 V
t
t
2 s
3 s
Hydraulic output
t
V
Duration >3 s
1.1
1.2
1.1
1.2
Fig. 5-13 Switching time diagram: General error
In case of general errors, the lubrication system at PIN 4 sends a Low (+0 V) signal which lasts longer than 3 seconds. The output signal at PIN 4 in normal operation is High (+20…30 V). The signal
will switch to Low (+0 V) while the lubrication system's motor is actually running. This usually takes between approx. 7 and 17 seconds, depending on the length of the lubrication lines and the viscos-
ity of the lubricant. Then the signal will switch back to High.
Commissioning OPERATING MANUAL FlexxPump4 N Lubrication System
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