7
Planning basics
To ensure efficient programming, the following order has to be observed:
1
The basic condition of writing the desired controller functions and its parameterizing is an
accurate hydraulic diagram
!
2
This diagram
must
show
what
should be regulated and
how
.
3
The
sensor positions
are to be defined according to the desired controller functions and
drawn into the diagram.
4
The next step consists in providing all sensors and “consumers” with the desired
input or
output numbers
. As all the sensor inputs and outputs have different characteristics, it is not
possible to provide consecutive numbers. Therefore, the input and output assignment must be
made according to the following description:
Inputs:
All 16 inputs are suitable for standard sensors of the types KTY (2 k
) and PT1000 or for
digital inputs. In addition, the following inputs have special functions:
S8:
Current loop (4 – 20 mA) or control voltage (0 - 10V=)
S15, S16:
Pulse input, such as for volume flow encoder
Signal voltages of
more than
5 V at the inputs S1 to S7 and S9 to S16 or
more than
10 V at
S8 are
not allowed
.
Outputs (supply voltage side):
A1:
Speed-adjustable output
(!!!!!!!!!! max. 0.7A !!!!!!!!!!)
with integrated interference
filter
A2, 6, 7:
Speed-adjustable outputs for pumps (max. 1A)
A3:
Relay output (closer) for undefined consumers
A4:
Relay output with opener and closer for undefined consumers, preferably for valves
without retracting spring. A4 combined with A3 is also suitable for mixer motors.
A5:
Relay output –
potential-free
with opener and closer for burner demand with the
legally prescribed distance to the supply voltage.
A8, A9:
Relay outputs (closer) for undefined consumers, preferably together with mixer
engines, as only one commonly used neutral conductor clamp is available for both
outputs
A10, A11:
Relay outputs (A10 with closer, A11 with opener and closer) for undefined con-
sumers, preferably together with mixer engines, as only one commonly used neu-
tral conductor clamp is available for both outputs
Outputs (protective low voltage side):
Hirel 1, 2:
Control lines for a relay module for two other relay outputs
A12
and
A13
, which can
be installed as module in “Slot 1”.
DL (14):
DL bus as bus link for various sensors and/or for data recording via data logger to
a PC. This connection is not only able to be used through the parameterization but
also to activate an additional relay.
0-10 V / PWM (A15, A16)
: Control output with a standardized voltage level of 0 to 10 V e.g. for
boiler modulation. Switchable to PWM (level approx. 10 V, cycle duration 0.5 ms).
Referred to as analogue output in the user software.
5
Now the calling of the functions and its parameterizing is effected.
