8. Modes of operation
8.1
Timer operation
(setting pause and pump running times)
Perform settings in the programming
modes tPA and tCO.
The control of the lubrication cycle takes place
based on the values preset for the PAUSE and
CONTACT times.
PAUSE:
Display and programming values in
hours
CONTACT: Display and programming values in
minutes
With the
key, intermediate lubrication cycles
are activated and/or fault messages acknowledged
and cleared. An external pushbutton can be con-
nected to terminal DK/MK.
8.2
Counter operation
(Pause depends on number of impulses)
Perform settings in the programming modes cPA
and tCO. See section 7.4. Connect an external
impulse transmitter to input DK/MK.
PAUSE:
Display and programming values in
impulses
CONTACT: Display and programming values in
minutes
The external transmitter controls the idle time as
a function of machine movements.
The pump running time (tCO) is programmed in
minutes.
8.3
Special control variants
The pump running time is controlled as a function
of the number of revolutions of the pump motor.
CONTACT: Display and programming values in
impulses.
PAUSE:
Display and programming values in
impulses or hours.
Possible combinations: tPA+ cCO
cPA+ cCO
These operating modes can be used
only in connection with pump units
featuring level monitoring W1.
8.4
Operation without system monitoring
In this mode of operation, the lubrication cycle is
controlled only by the values set for PAUSE and
CONTACT. The IG502-E is programmed by the
manufacturer for system monitoring via a pressure
switch.
The monitoring function must be
disabled. COP = OFF see section 7.3.
System faults are not automatically
detected and displayed.
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Contents
Chapter
Operating Instruction Universal Control Unit IG502-E
8.5
Operation with system monitoring
In this mode of operation, the functions of the
system are additionally monitored by external
switches.
The following functions can be monitored:
•
the level in the lubricant reservoir (only for pumps
featuring level monitoring W1)
•
the pressure build-up in the main line by means
of a pressure switch
(section 8.6)
•
the function of the progressive feeder by means
of a cycle switch
(section 8.7)
Faults are automatically detected and
displayed. The monitoring function is
active.
COP = CS or PS see section 7.3.
An installed level monitoring facility W1 is
always active.
Central
8
Lubrication