sauter equitherm EQJW126F001, Mounting And Operating Instructions

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BA_EQJW126F001_EN001
Electrical connection
6.6 Three-step control
The flow temperature can be controlled using a PI algorithm. The valve reacts to
pulses that the controller sends when a system deviation occurs. The length of the
first pulse, in particular, depends on the extent of the system deviation and the
selected Proportional gain K
P
(the pulse length increases as K
P
increases). The pulse
and pause lengths change continuously until the system deviation has been
eliminated. The pause length between the single pulses is greatly influenced by the
Reset time T
N
(the pause length increases as T
N
increases).
The Transit time T
Y
specifies the time required by the valve to travel through the
range of 0 to 100 %.
Function WE Configuration
Control mode 1 CO1, 2, 4 -> F12 - 1, Rk_
2.0 KP (proportional gain) / 0.1 to
50.0 120 s Tn (reset time) / 1 to 999 s
0 s TV (derivative-action time) / Do not change!
45 s TY (valve transit time) / 5, 10, 15, … , 240 s
6.7 On/off control
The flow temperature can be controlled, for example, by activating and
deactivating a boiler. The controller switches on the boiler when the flow
temperature falls below the set point by T = 0.5 x hysteresis . When the set point is
exceeded by T = 0.5 x hysteresis , the boiler is switched off again. The greater the
value you choose for Hysteresis , the lower the activation/deactivation frequency
will be. By setting the Minimum ON time , an activated boiler remains switched on
during this period regardless of the flow tempera- ture fluctuations. Similarly, a
deactivated boiler will remain switched off regardless of the flow temperature
fluctuations if the Min. OFF time has been specified.
Function WE Configuration
Contro
l
mode 1 CO1, 2, 4 -> F12 - 0
5.0 °C Hysteresis / 1.0 to 30.0 °C
2 min Min. ON time / 0 to 10 min
2 min Min. OFF time / 0 to 10 min