Danfoss 101N0715, Руководство по эксплуатации, Страница: 18 / 28

Operating Instructions BD Controller 101N07xx Series 24 V DC
18 DEHC.PS.100.I.02
4.2.6 Thermostat
Thermostat type
Two types of thermostat can be utilized for temperature control.
Electronic thermostat (NTC sensor)
Disconnected sensor error alarm
(NTC sensor failure) is sent when the measured temperature is > +100ºC
Short circuited sensor error alarm (NTC sensor failure) is sent when the measured temperature < - 60ºC
Mechanical thermostat
A mechanical ON/OFF thermostat can be connected at terminals C & T.
No detection of faulty thermostat is provided when an ON/OFF thermostat is used.
Automatic thermostat selection
The Thermostat parameter displays the type of thermostat connected to the controller: either a me-
chanical thermostat or NTC temperature sensor.
An NTC sensor is recommended for the temperature range -60 ºC to +100 ºC
A mechanical thermostat is recommended for temperatures below -60 ºC and above +100 ºC
Note: An NTC sensor error is not detectable when the NTC sensor is operating in automatic thermo-
stat selection mode.
Settings
Name Default Max value Min value Step Unit
Thermostat type Auto Electronic - - -
Cutout temperature + 25 + 40 -40 1 Celcius (ºC)
Difference 3 15 1 1 Kelvin (K)
Forced ON OFF ON OFF 1 -
Name Description Step Unit
Runtime Runtime is provided to record cooling-time
(thermostat cut-in period). The runtime is
updated during cooling, starting with 0 at
start of cooling.
During cooling OFF (Thermostat cut-out),
the
Runtime parameter will show the time for
the last cooling period. Runtime is reset at
the beginning of a cooling ON period, and at
power-up.
1 Minutes
Actual temperature Real-time air temperature when a NTC sensor
is used.
When a mechanical thermostat is used, only
thermostat status ON or OFF is displayed. - ºC
Measurements