Third control level, (A parameters):
Setting of control parameters
Access to the third control level is granted when selecting the last P-parameter on the second
control level. Continue to press the UP key for approximately 10 seconds until “PA” appears.
Continue to press the UP key and additionally press the DOWN key for about 4 seconds and the
first A-parameter of the third control level is indicated.
With the keys UP and DOWN you can scroll the list in both directions. Pressing the SET key will
give you the value of the respective parameter. By pressing the UP or DOWN key at the same time
the value can be adjusted.
Return to the initial position takes place automatically, if no key is pressed for 60 seconds, or by
simultaneously pressing the UP and DOWN key for approx. 4 seconds.
Para-
meter
Function description
Adjustment range
Standard
setting
Custom
setting
A1
Switch mode contact K1
0: heating contact
1: cooling contact
0
A2
Switch mode contact K2
0: heating contact
1: cooling contact
1
A3
Function of contact K1 at
sensor error
0: relay off
1: relay on
0
A4
Function of contact K2 at
sensor error
0: relay off
1: relay on
0
A5
Selection setpoint 2 or
DeltaW
0: operation with setpoint 2
1: operation with DeltaW
1
A6
Control characteristics
0: no ramp function
2: relative ramp function
3: absolute ramp function
0
A8
Display mode
(all parameter indications
are presented in 0.1°K)
0: integrals, without leading zero
1: with decimals without leading zero
1
A9
Weighing factor
0.50 ... 1.50
1.00
A10*
Indication value for lower
value linear analogue input
-99...999
0.0
A11*
Indication value for upper
value linear analogue input
-99...999
100
A19
Parameter lock
0: no lock
1: A-parameter locked
2: A- and P-parameter locked
0
A20
Key acknowledgement
0: no
1: yes
1
A30
Function alarm exit
0: Boundary alarm, relative
1: Boundary alarm, absolute
2: Range alarm, relative
3: Range alarm, absolute
0
A31
Special function at
boundary or range alarm
0: no special function
1: flashing display
2: buzzer
3: flashing display and buzzer
4: like 3, buzzer can be cancelled
5: like 4, cancelled buzzer restarts
after 10 min.
6: like 4, cancelled buzzer restarts
after 30 min.
0
Summary of Contents for ST70-31.03
Page 2: ......