Functional Description
AP20S
Date: 24.08.2020
Art. No. 89992
Mod. status 133/20
Page 17 of 79
Bit
Meaning
Value = 0
Value = 1
5
Display data
acknowledged (display
line 1)
Display data not
acknowledged
Display data acknowledged
6
reserved
ever 0
-
7
General error
No error
An error exists
8
Display data format
(display line 1)
Display data are interpreted
as a number
Display data are interpreted
as an ASCII character
9
Target value format
(display line 2)
Target value is interpreted
as a number
Target value is interpreted
as an ASCII character
10
Target value activation
(display line 2)
Target value is deactivated Target value is activated
11
Battery state
Battery
Charging state is OK
Battery
Charging state is critical
12
Sensor error
There is no sensor error
There is a sensor error
13
Key Configuration
Button is not pressed
Button is pressed
14
Key Calibration
Button is not pressed
Button is pressed
15
Key Incremental
Button is not pressed
Button is pressed
Table 7: Status word alpha-numeric display operating mode
3.2
Battery buffering
Without an external power supply, encoder changes are recorded with battery support.
Depending on the duration of battery operation (including storage) and the frequency of
adjustments without an external power supply, the battery life is approximately 8 years.
Battery voltage is checked at intervals of approx. 10 min. If battery voltage drops below a
specified value, the battery symbol
will blink on the display. If the battery voltage
continues to drop,
will be displayed permanently. The battery should be replaced within
approx. three months after the first appearance of the battery symbol. For battery
replacement it is mandatory to follow the instructions of the installation instructions.
Replacement can also take place at the SIKO distribution partners or in the SIKO main plant.
Behavior of the status word
The charge status of the battery is signified in the status word. In the case of a critical
charging voltage, bit 11 is set, and in the case of an empty or non-existing battery, a fault is
additionally signaled with bit 7.
3.3
Parameterization of the position indicator
The position indicator can be fully parameterized via the bus interface. All parameters can
also be set manually with the help of the keyboard.