Guidance MP-888 - Supplement to the manual of instructions
10/10
P43
Hysteresis cooling
Setting depends
on model
(0.2...25.0°C)
(0.4...45.0°F)
Period between ON and OFF of cooling.
This value has to be adjusted correctly
according to the controller adjustment
tables for temperature control units and
chillers.
P44
Differential portion
heating and cooling,
controller parameter
Setting depends
on model
(0...100%)
Differential portion of the PID control.
Controls the max. speed of the
controller
P45
Relation between
cooling- and heating
capacity
0
(1...50)
Adjusting of the cooling capacity
0:
2-point cooling (Standard)
1: cooling = heating capacity
50: cooling > heating capacity
P47
Minimal switching
time cooling,
controller parameter
1s
(0.5...9s)
Minimal switching time for cooling relay.
Only active if P45 is higher than 0
P48
Minimal switching
time heating,
controller parameter
2s
(1...9s)
Minimal switching time for heating relay.
If P45 = 0, so also relevant for the
cooling relay
P49
Cycle time,
controller parameter
15s
(6...255s)
Controller time base of PWM-outputs
Time of the analyse of the control
system to define the variable
P53
Flow unit
0: Flow OFF
1: Impulse (Hz)
2: litres/min
3: US gallons/min
4: Imperial gal./min
Flow unit to display
1 US gallon
= 3.785 litres
1 Imperial gallon = 4.546 litres
P60
Flow measurement
Calibration table
0 = Manual
1 = Small units 1
2 = Medium units
3 = Large units
4 = Reserved
5 = Small units 2
6 = Reserve
Selection of the calibration table for flow
measurement
P61
Flow measurement
point 1
x Hz
y l/min
Relevant calibration curve for flow
measurement depending on P60
P62
Flow measurement
point 2
x Hz
y l/min
Relevant calibration curve for flow
measurement depending on P60
P63
Flow measurement
point 3
x Hz
y l/min
Relevant calibration curve for flow
measurement depending on P60
P64
Flow measurement
point 4
x Hz
y l/min
Relevant calibration curve for flow
measurement depending on P60
P65
Flow measurement
point 5
x Hz
y l/min
Relevant calibration curve for flow
measurement depending on P60
P66
Lower alarm limit
(P61)
30%
Only valid for automatic node (P3=1) to
calculate the alarm point
P67
Upper alarm limit
(P65)
10%
Only valid for automatic mode (P3=1) to
calculate the alarm point
