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Start-up
2.4
Enter key number
Some functions are protected against unintentional or unauthorized access. These functions can
only be activated or deactivated after the valid key number has been entered. The valid key
number for initial start-up can be found on page 127. To avoid unauthorized use of the key
number, remove the page or make the key number unreadable.
Proceed as follows:
0 0 0 0 blinks on the display.
Set valid key number.
Confirm key number.
When the correct key number is entered, the function block to be changed blinks on the
display.
When an incorrect key number is entered, the controller returns to the next configuration
level.
The key number remains active for approx. 10 minutes.
2.5
Calibrating sensors
The connected sensors are calibrated in the Co6 configuration level. The following applies:
4
Co6 -> Fb00 = ON:
4
Co6 -> Fb00 = OFF:
The resistance values of the sensors can be found on page 115.
Each universal input can be configured separately.
The function block parameter includes the following types: Ni 200/1000, PTC, NTC,
Pt 100/1000, (0/4 to 20) mA. The function blocks Co6 -> Fb01 to Fb17 correspond to the bi-
nary inputs BE1 to BE17 in the terminal wiring plan (–> page 78 onwards).
Activate the function block for the required sensor and select the function block parameter
which matches the type of the input signal.
Note!
Pt 100 or Pt 1000 sensor should be used to measure the flow temperature as only these types of
sensor are able to measure temperatures reaching up to 160 °C (maximum temperature of the
flow temperature set point).
22
EB 5474 EN
Pt 100/Pt 1000 sensors mixed (default setting)
Pt 100/PTC sensors mixed
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