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E4 Adjustment Value Humidity Sensor
Using this parameter, you can calibrate the active humidity sen-
sor at terminals 3-5 in a range from -15% RH to +15% RH.
E5 Base Relay
The base relay provides a potentialfree two-way contact at ter-
minals 28, 29 and 30 (rated load: 250V/8A).
It is activated if certain operational conditions apply. The opera-
tional condition “collective fault” is preset.
It is possible to associate another operational condition with the
base relay circuit, also see Section: “Summary Table of Parame-
ters” on Page 56, “Parameter E5.”
E6 1. Signal Relay
If the optional signal relay PCB is employed, additional two-way
relay outputs are available whose switching functions can be
programmed in the same way using Parameter E5. Parameter
E6 is responsible for the switching function of the first additional
signal relay.
E7 2. Signal Relay
This setting corresponds with the description of Parameter E6.
Parameter E7 is responsible for the switching function of the
second additional signal relay.
E8 3. Signal Relay
This setting corresponds with the description of Parameter E6.
Parameter E8 is responsible for the switching function of the
third additional signal relay.
E9 4. Signal Relay
This setting corresponds with the description of Parameter E6.
Parameter E9 is responsible for the switching function of the
fourth additional signal relay.
E17 Baud Rate Interface
As an option, the Comfort / Comfort Plus can be supplied with an
RS485 or RS 232 computer interface. Here one can set the
baud rate required for data transfer.
E18 Offset Dehumidifier
Parameter E18 Offset Dehumidifier specifies the dead band
between humidification and dehumidification. The standard pro-
grammed setting for Parameter E18 is +5%.
The potentialfree output (terminals 28, 29, 30) can be used for 1
step control of a dehumidifier. In this case, Parameter U6 Con-
trols must be set to operation mode “PI-controller”.
To use this function, the base relay or one of the optional signal
relays must be programmed for the function “dehumidification”
and the dehumidifier must be connected to this relay.
The switchover point between humidification and dehumidifica-
tion is specified using parameters P8 desired value rel. humidity
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