ZIEHL-ABEGG Acontrol, Operating Instructions Manual

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7.5
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Installation
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Heating 2
◄
Heating2
↑
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ESC
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P
↓
H2 Mode
H2 Mode
OFF
= heater inactive (at factory)
1 = Heating works as a two-point controller via relay
2 = Heating works as a proportional controller (0 - 10 V)
3 = piglet nest heating ( following chapter)
4 = piglet nest heating (Blaffert only P-controller)
H2 Input
H2 Input
0
= Sensor on E1 = Control via offset to setpoint ventilation (factory setting)
1 = Sensor on E2 = Control independent from the ventilation nominal value
2 = Sensor value via bus from “ master ” independently of ventilation setpoint
3 = sensor at E3 = regulation independent of ventilation setpoint (only possible of not
usedas a digital input, internal jumper “ J2 ” must be pluggedto the right = “ E3 ” .
H2 Val<Set=+
H2 Val<Set=+
Basic control function:
OFF = cooling
ON = heating (factory setting)
7.5.1 Special function for
“ piglet nest warm water heating ”
This function regulates the start-up temperature for a hot water heating plate to exactly the desired
setpoint.
Tips:
The function is part of heating circuit 2 of the device.
For this function “ H2 Mode ” must be set to “ 3 ” .
The input for “ H2 ” must be assignedthe temperature source 2 (sensor at E2).
The control range of the heater 2 shouldbe “ 5 K ” with this function (setting in the main menu
“ Heating ” ).
The greater the control range is set, the gentler the control behaviour. If no stable start-up temperature
is reached, the control algorithm must be adjusted. The parameters: H2, KP, KI, KD and TI are
responsible for this. The displayed values are reference values from similar applications. If the
regulator is unstable, the parameter “ H2 TI ” can be increased  rst (e.g. by 2 - 3 points). This serves to
slow down the integration behaviour, i.e. the regulator responds a little slower which normally results
in more stability.
The function andposition of the start-up temperature is very important for a goodregulation. The
sensor must be installed directly behind the mixer valve. This rules out disturbance variables and
enables maximum response behaviour (short controlledmember).
Blaffertconst.
Blaffertconst.
Adjustment range: 0.0 - 10.0
Factory setting: 2.9
H2 KP
H2 KP
Setting range: 0 - 200 %
Factory setting: 100 %
H2 KI
H2 KI
Setting range: 0 - 200 %
Factory setting: 1 %
H2 KD
H2 KD
Setting range: 0 - 200 %
Factory setting: 100 %
Operating Instructions UNIcon / Acontrol The Installation menu
L-BAL-E051-GB 1035 Index 003 Part.-No. 00163311-GB
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