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ST501-KC1KAR.112

Controller for cooling applications

Order number 900390.001

Wiring diagram

Product description

The micro-processed controller ST501-KC1KAR.112 is used for the thermostatic temperature con-
trol of simple refrigerating plants. It is supplied with 230V AC and has two exit relays. The relays
can be used for different functions, e.g. for a compressor, a fan, a defroster, an alarm relay, etc.
Two resistance sensors can be connected. One sensor seizes the refrigerating chamber tempe-
rature, and the function of the second sensor can be differently parametered.
Networking of the controller takes place via the ST-Bus interface.

Sensor: PTC
Range: -50...150

C

Front size: 106mm x 68mm
Panel cut-out: 87.5mm x 56.5mm
Tightness: front IP65
Connector: screw terminal

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Содержание ST......112 Series

Страница 1: ...two exit relays The relays can be used for different functions e g for a compressor a fan a defroster an alarm relay etc Two resistance sensors can be connected One sensor seizes the refrigerating chamber tempe rature and the function of the second sensor can be differently parametered Networking of the controller takes place via the ST Bus interface Sensor PTC Range 50 150 C Front size 106mm x 68...

Страница 2: ......

Страница 3: ...SOFTWARE COOLING CONTROLLER ST501 xxx 112 ...

Страница 4: ...rted via parameters CONTROL KEYS Key T1 UP up arrow By pressing this key the parameter or parameter value is increased A further function of the key can be set with parameters Key T2 DOWN down arrow By pressing this key the parameter or parameter value is decreased A further function of the key can be set with parameter Key T3 Function key The function of the key can be set with parameter Key T5 S...

Страница 5: ...e displayed Press UP or DOWN to switch between code words and All other settings value specifications in parameter setting mode are performed using the default value setting method i e pressing buttons SET and UP DOWN at the same time NETWORK ADDRESS Under code word you can set a network address This is required for commissioning networked systems ENTERING A PASSWORD By selecting code word you can...

Страница 6: ...ontrol circuits 1 Defrosting control circuits 1 Fan control circuits 1 Temperature sensors Pre defined sets of parameters Networking and display Relay contacts and lamps Control circuit 2 These levels by default are protected by a password ...

Страница 7: ...ur if temperature alarm disappears again 0 without buzzer delete automatically 1 with buzzer delete automatically 2 without buzzer with acknowledgement 3 with buzzer with acknowledgement 1 Function buzzer and or display in the case of alarm temp alarm see 0 no display no buzzer 1 display flashing only 2 buzzer active only 3 display flashing buzzer active 4 like 2 can be acknowledged 5 like 3 buzze...

Страница 8: ...not active in standby 11 relay function blade scraper regardless of standby 12 relay function door frame heating not active in standby 13 relay function door frame heating regardless of standby 14 relay function F not active in standby 15 relay function F regardless of standby 16 Set1 Set2 change over 17 day night change over 18 super frost on off 19 evaporator fan on permanently 20 control circui...

Страница 9: ...andby 12 relay function D blade scraper regardless of standby 13 relay function E door frame heating not active in standby 14 relay function E door frame heating regardless of standby 15 relay function F not active in standby 16 relay function F regardless of standby 17 Set1 Set2 change over 18 day night change over 19 super frost on off see 20 evaporator fan on permanently 21 defrosting request c...

Страница 10: ... after compressor start 0 900 sec 300 Start protection after compressor stop 0 900 sec 180 Start protection compressor after mains on 0 60 min 0 On time in emergency operation 0 100 50 Cycle time in emergency operation 5 60 min 10 Assignment of sensor for super frost also core or product temperature detailed description of sensors in parameters through 0 none 1 Sensor F1 2 Sensor F2 3 Sensor F3 4 ...

Страница 11: ...on 1 99 min 30 Display of cold store temperature during defrosting 0 normal 1 last temperature before defrosting 1 Temperature difference to cold store setpoint in previous cooling 15 C 0 0 C 0 0 Time limitation in previous cooling 1 180 min 10 Delay of start of defrosting after compressor off 2 0 900 sec 60 Dripping time 0 15 min 1 Stop delay drip tray heating 0 60 min 10 Password of parameter le...

Страница 12: ... offset if 4 or 5 15 0 15 0 C 0 0 Evaporator fan Control hysteresis if 4 or 5 0 1 15 0 C 2 0 Assignment of condenser sensors detailed description of sensors in parameters through 0 none 1 Sensor F1 2 Sensor F2 3 Sensor F3 4 Sensor F4 5 weighted mean value from F1 and F2 0 Condenser fan setpoint 55 150 C 60 0 Condenser fan switching hysteresis 0 1 15 0 C 10 0 Condenser fan delay after compressor st...

Страница 13: ...easured value not adjustable Calibration sensor F2 act value correction 20 20 0 C 0 0 Weighting factor sensor F2 0 50 1 50 1 00 Selection sensor F2 see 1 Software filter sensor F2 1 32 8 Display at 0 4 mA and sensor selection 7 8 99 999 0 0 Display at 20 mA and sensor selection 7 8 99 999 100 Act value sensor F3 Measured value not adjustable Calibration sensor F3 act value correction 20 20 0 C 0 0...

Страница 14: ...can only be viewed and set via ST bus Warning Changes made in the parameter set will change all parameter settings Networking and display password protected Para meter Description of function Setting range Values default Own address ST bus Identical to setting 0 deactivated 1 250 1 Temperature scale 0 C 1 F 0 Display mode 0 3 digits integers 1 3 digits rounded to 0 5 2 3 digits 0 1 3 4 digits inte...

Страница 15: ...ght 2 10 relay function C window heating 11 relay function D door frame heat 12 relay function E blade scraper 13 relay function F 14 drip tray heating 15 buzzer 16 on if controller active 17 on if control circuit 1 active 18 on if control circuit 2 active 19 on if Set 1 active 20 on if Set 2 active 21 on if day mode active 22 on if night mode active 1 Function relay K2 see 2 Function relay K3 see...

Страница 16: ...15 super frost 16 humidity 17 control circuit 1 active 18 control circuit 2 active 19 set 1 active 20 set 2 active 21 day mode active 22 night mode active 23 display MIN 24 display MAX 1 Function LED2 see 2 Function LED3 see 3 Function LED4 see 0 Function LED5 see 19 Function LED6 see 20 Function LED week days 0 no function off 1 display weekday 2 see 0 Function LED7 Mo see 0 Function LED8 Tu see ...

Страница 17: ... a password you can still parameterise the controller and look up and or edit the password via a master password To do that follow these steps 1 Switch off power supply disconnect from mains or switch off power supply unit 2 Press buttons UP DOWN and SET at the same time and switch on power supply again 3 Now a Challenge number will be displayed for approx 5s In no case disconnect the controller f...

Страница 18: ......

Страница 19: ...F4 short circuit check sensor F4 Error on sensor F4 wire broken check sensor F4 Door open for too long close door High pressure fault Check Condenser fan and check for dirt accumulation Low pressure fault Plant leaking to little coolant Internal error in control unit Repair control unit Error in parameter memory Check all parameters Error in data memory Repair control unit Error of internal clock ...

Страница 20: ...n define after which time an alarm is to be triggered when the door is opened If the door is closed again within the specified time no alarm will be triggered Behaviour when temperature alarm disappears Here you can define if a temperature alarm can be deleted automatically as soon as the temperature is in the permissible range again or if it must be acknowledged This is to ensure for example that...

Страница 21: ...l Control circuit 1 Assignment of cold store sensors With this parameter you can set which sensor input is to be used as the cold room sensor The selected sensor must be set up accordingly in the parameters Control circuit 1 Setpoint Set1 Control circuit 1 Night time incr decr Control circuit 1 Setpoint Set2 With this parameter you can set the setpoint It will be displayed directly if you press th...

Страница 22: ...ly in the parameters super frost lime limit shock frost max refrigerating power super frost temperature limit shock frost max refrigerating power super frost deactivation shock frost max cooling power If this function is activated the lower warning limit is deactivated and the compressor is on permanently In you can define if automatic shut down is to be performed and if this automatic shut down i...

Страница 23: ...off Off delay of drip tray heating Here you can define how long the drip tray heating is to remain switched on after a defrosting operation to avoid that the dripping water freezes again Password for parameter level With this parameter you can set the password for parameter level d Fan control circuit 1 Fan speed in control mode Set1 Fan speed in normal control mode and active Set1 Fan speed durin...

Страница 24: ...erature is below the setpoint the evaporator fan will be switched on This switching point can be shifted by the value defined here If 5 the following applies The temperature difference between cold store sensor from and evaporator temperature sensor from determines the switching point for the evaporator fan If the evaporator temperature is below the cold store temperature the evaporator fan will b...

Страница 25: ... factor F1 F4 With this parameter it is possible to correct actual value deviations due to unfavourable sensor location The value measured by the controller is multiplied by the value set here Sensor selection F1 F4 With this parameter you can define the sensor type Depending on the hardware not all sensor types may be supported For the NTC sensor a parallel resistor will have to be connected Soft...

Страница 26: ...er you can define if temperature values are to be displayed in F or C Display mode Here you can switch over between 3 digit and 4 digit display However if the hardware provides 3 digits only the left digit will be lost i e the sign in the case of negative numbers You can also define here if values are to be displayed without decimal places with rounded decimal place or exactly Display value Here y...

Страница 27: ...eating 13 32 Function E blade scraper 14 64 Function F reserved 15 128 reserved To determine the value to be parameterised all valencies must be added up Password for parameter level With this parameter you can set the password for parameter level Relay contacts and lamps password protected Function relay K1 K8 Assignment of internal output signals to the corresponding output relays Function LED 1...

Страница 28: ...ng switching point symmetrically or on one side only In the case of a one sided hysteresis the hysteresis will be active below the setpoint in the case of the heating function 0 and above the setpoint in the case of the refrigerating function 1 In the case of a symmetrical hysteresis there is no difference Control circuit 2 upper setpoint limitation Control circuit 2 lower setpoint limit With thes...

Страница 29: ...50 60 Hz power consumption max 6 VA ST Bus communication interface Interface driver RS485 galvanically not separated The network has to be installed in lines topology and terminated with a 120 Ohm resistance on each side In case of networking always connect port A with port A and port B with port B Crossing over is not permissible Connectors screw terminal 11 pole spacing 5 0 mm for cable up to 2 ...

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