HE 5750 Operating Instructions
#371627 | Version 1.1
51
Parameter
Description
10.2 System timeout
A value to differentiate between an
isolated and a short interruption of the voltage supply.
Short interruption: continues the operation at the saved position.
Switch off:
System restart
10.3 Autostart delay
Delay time between switching-on and the start of the AUTO
performance, which provides the operator and the process system with
the possibility to enter an input at the controller.
10.4 Remote timeout
The controller keys can be deactivated via the process level, via modem
or via PC command. After this time the controller keys are released
again, in case the process level fails.
10.5 Local timeout
The local keys at the control cabinet are released again, in case they
were deactivated.
11 Passwords
Access to the parameters is regulated by a system of different service
levels. Everybody can see each parameter, however a password is
required to modify protected parameters. After entering the password the
parameters of this service level can be modified. By the presentation of
the default operating display, access to the parameters is cancelled
again.
11.1 HE 5750
System engineering and setup, all parameters
11.2 Service
Service staff of manufacturer.
11.3 Customer (technician)
Service staff of customer.
11.4 Customer
Operating staff of customer.
12 Measurement ranges
Since the controller receives analogue values only in nominated form (4
to 20mA, measurement ranges and physical units must be defined in
order to be presented correctly.
12.1 Delta-p unit
1 milli bar = 10.197 mm water column
1 mm WG = 0.098 milli bar
12.2 Delta-p
20mA correspond to the entered value
12.3 flow rate
1 k m
3
/h =1000 m
3
/h = 277.7 ltr/s = 73.38 US gal/s.
12.4 Pressure
The measuring range of all pressure transmitters.
12.6 Delta-p filter
The process signal is equipped with a low-pass filter first order. This
value is displayed and internally processed.
12.7 Volume flow filter
The process signal is equipped with a low-pass filter first order. This
value is displayed and internally processed. For the signal exchange, the
user can select whether the filtered value (process value) or the
unfiltered value
(field value) is transmitted.
12.8 Dust filter
The process signal is equipped with a low-pass filter first
order. This value is displayed and internally processed.
