Microwell | MICROWELL, spol. s r.o.
NIVELCO
NIVELCONIVELCO
User Manual for NIVELCO models including: PKK-312 Current Control Switch, PKK-312, Current Control Switch, Control Switch, Switch
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DocumentDocumentThank you for choosing a NIVELCO product! 1. APPLICATION The UNICONT PKK312 series comprises 4...20 mA current controlled limit switches. The relay output of the units switch at the current limit values (taught to the unit), depending on the limits, switching difference or window comparison modes. Error status indication can be programmed so that the relay gets energized or de-energized when detecting a failure. Failure may be discontinuity in the cable / lower value fault current or short circuit / upper value error current. The unit is suitable for powering all NIVELCO manufactured 2-wire (4...20 mA) transmitters. Some models of this series meet the requirements of intrinsically safe operation. The UNICONT PKK3128 Ex can monitor the DC powered, 2-wire NIVOSWITCH Ex type vibrating fork's output current changes between freely vibrating and immersed states without any further programming. Relay 2. TECHNICAL DATA 2.1 GENERAL Type Nominal input current range Accuracy of switching level / Threshold level Discontinuity threshold / Lower value fault current Short circuit threshold / Upper value fault current Input impedance Input overload capability Switching delay Output Rating Insulation strength Electrical / Mechanical life expectancy Electrical connection Mechanical connection Ingress protection Weight PKK312 1...22 mA ±0.1 mA 3.7 mA 22 mA 10 Max. 100 mA (continuous) 0.1 s; 1 s; 2 s; 5 s selectable 1× SPDT 250 V AC, 8 A, AC1 4000 V 50 Hz 105 / 2 x 106 switching Max. 2.5 mm2 (AWG14) twisted, or max 4 mm2 (AWG12) solid wire EN 60715-35 rail IP20 ~210 g (~0.5 lb) 2.2 SPECIAL DATA Type Power supply range Power consumption Safety maximum voltage Switching levels Ex marking Intrinsic safety data Output load capability Electrical protection Reference document number Ambient temperature Ex version PKK3125Ex PKK3126Ex PKK3127Ex PKK3128Ex 230 V AC ±10% 110 V AC ±10% 50...60 Hz 50...60 Hz 24 V AC ±10%, 50...60 Hz, 24 V DC ±15% < 2.5 VA < 2.5 VA or < 2.5 W Um = 253 V AC 2 values in the range of 1...22 mA 10.5 mA; 12.5 mA II (1) G [Ex ia Ga] IIB II (1) G [Ex ia Ga] IIC II (1) D[Ex ia Da] IIIC II (1) D[Ex ia Da] IIIC PKK3121 230 V AC ±10% 50...60 Hz Standard version PKK3122 PKK3123 PKK3124 110 V AC ±10% 24 V AC ±10% 24 V AC ±10%, 50...60 Hz, 50...60 Hz 50...60 Hz 24 V DC ±15% < 2.7 VA < 2.5 W 2 values in the range of 1...22 mA U0 = 28.4 V; I0 = 140 mA; P0 = 1 W; U0 = 28.4 V; I0 = 80 mA; P0 = 0.6 W L0 = 6 mH; C0 = 50 nF L0 = 4 mH; C0 = 50 nF IT = 22 mA when UOUT 12 V IT = 22 mA when UOUT 15 V U0 = 30 V IMAX = 70 mA UOUT min = 16 V Class II Class III Class II pkk3121m060bh_06 -25...+55 °C (-13...+131 °F) U0 = 24 V IMAX = 80 mA UOUT min = 23 V Class III 2.3 ACCESSORIES User's Manual Warranty Card EU Declaration of Conformity 2.4 DIMENSIONS 3. INSTALLATION UNICONT PKK312 must be mounted on an EN 60715-35 rail. ATTENTION! Before installing the device, make sure that the input current values can be provided by the loop of the application. If not, teach the current values to the device before installing it. (See chapter 5 "Commissioning, Setting, Programming") 4. WIRING 4.1 EX MODELS PKK3128Ex with NIVOSWITCH Ex vibrating fork PKK3127Ex with 2-wire Ex transmitter (e.g. EchoTREK SEA3806 Ex) PKK3125Ex ... PKK3127Ex for monitoring of Ex passive switch and cable 2.5 ORDER CODE PKK 3 1 2 EX* POWER SUPPLY / EX 230 V AC 110 V AC 24 V AC 24 V AC / DC 230 V AC EX 110 V AC EX 24 V AC / DC EX 24 V AC/ DC EX CODE 1 2 3 4 5 6 7 8** * Order codes of an Ex versions end in 'Ex' ** For DC powered, 2-wire NIVOSWITCH Ex vibrating fork of NIVELCO 4.2 STANDARD MODELS PKK3121 ... PKK3124 with 4-wire active transmitter (e.g. EchoTREK STA460) PKK3121 ... PKK3124 with 4 wire active transmitter (e.g. MICROSONAR UTS211) PKK3121 ... PKK3124 for monitoring of passive switch pkk312en21h06 2/1 5. COMMISSIONING, SETTING, PROGRAMMING 3 seconds after powering up, the unit begins to work with the signals as per the table of WORKING STATUS. Working status LED Status Interpretation GREEN Relay energized R = 1 (SELECT) RED SIMULTANOUS RED BLINKING OF BOTH LED Relay de-energized R = 0 Memory failure, Relay state sustained FAIL (STEP) GREEN RED No cable fault/No fault current. No cable monitoring Cable fault, or. fault current The relay states relating to the operating modes and the input current are shown in the first diagram. Operation with delayed switching is demonstrated in the second diagram below. State of the relay depending on the input current Relay operation with delayed switching CAUTION! If the input current is between the trigger points in hysteresis comparison mode when the unit is switched on, the relay will always be de-energized (R = 1 or R = 0) regardless of the operating mode. Depending on the actual task, the unit may need programming, which involves setting the operating mode (except PKK3128Ex type) and the re-learning of the switching points. The PKK3128Ex device without any additional programming is also suitable for the attenuated and unattenuated monitoring of the 2-wire DC-powered NIVOSWITCH Ex vibrating fork and for the monitoring of the current consumption associated with its unattenuated state and, based on this, to influence the state of the relay output. For this type the trigger points current values of 10.5 and 12.5 mA and switching differential operating mode cannot be changed. Settings: Relay operating mode Cable discontinuity monitoring Cable short circuit monitoring Damping Revert to default (Default: R = 1) (Default: NONE) (Default: NONE) (Default: 0.1 s) A PKK3121 ... PKK3127Ex Settings: Teaching current value Relay operating mode Selecting comparison type Cable discontinuity monitoring Cable short circuit monitoring Damping Revert to default (Default: 10.5 mA and 12.5 mA) (Default: R = 1) (Default: Switching difference) (Default: NONE) (Default: NONE) (Default: 0.1 s) PROGRAMMING Programming involves setting the operating mode and learning of the input current values. Programming / reading the operating mode To initiate programming mode, press and hold the A button for about 5 seconds till the LED 'PROGRAM' lights up. To access the adjusting columns (as per the table below), press the A button briefly while in programming mode, and the steps will be indicated by the relevant LED 'STEP'. The rows of the columns can be selected by pressing the B button, and the 'SELECT' LED will indicate the choice. After performing the necessary adjustments, exit programming mode by pressing and holding the A button for about 5 seconds until the LED 'PROGRAM' goes off. pkk312en21h06 2/2 PROGRAMMING / READING THE OPERATING MODE Enter programming mode: press key A (for about 5 s) till the LED PROGRAM lights up Adjustment columns with corresponding LED STEP states, accessed by short pressing of key A GREEN GREEN BLINKING RED RED BLINKING OFF Relay operation mode Comparison Cable short circuit */ Cable discontinuity */ operation monitoring lower monitoring upper mode current current Switching delay Adjustment row with relevant state of the LED SELECT, selected by short pressing of key B R = 1 Limit value 1. ON, relay should be activated ON, relay should be activated 0.1 s GREEN R = 0 Limit value 2. ON, relay should be released ON, relay should be released 1 s GREEN BLINKING -- Hysteresis NO NO 2 s RED -- Window -- -- 5 s RED BLINKING Quit programming mode: press key A (for about 5 s) till the LED PROGRAM goes off. * Cable monitoring can only be applied with Ex certified 2-wire units AUTO-QUIT PROGRAMMING MODE The unit will operate during programming by the previous parameters. The new, modified parameters will only take effect after quitting programming mode. If the transmitter is left in programming mode, it will automatically quit programming mode after 30 seconds, and the modified values will not take effect. RELAY TEST The proper operation of the relay can be tested by pressing the B button for about 5 seconds. The state of the relay and the color of the LED will change (e. g., from green to red). Releasing the key makes the relay and the LED revert to their previous state. REVERT TO DEFAULT The device reverts to the factory default programming values if buttons A and B are pressed together before/during power-up. TEACHING CURRENT VALUE OF TRIGGER POINT Teaching input currents involves saving the Iin current values for switching points 1 and 2 between the terminals (figure on the right) at the moment of the teaching. The circuits on the application site can produce necessary current values. If the circuit of the actual application produces the input current, the actual current values do not have to be known. Arrangements for teaching input currents To teach the current values, press the buttons A and B simultaneously for about 5 seconds until the device enters teaching mode, indicated by the blinking of LED 'PROGRAM'. Release one of the buttons (A or B), and the momentary current value will be assigned to switching point 1 or 2. Release the other button, and the teaching process is completed, indicated by the going off of LED 'PROGRAM'. You can teach the other limit value without exiting programming mode if you do not release the other button and press the one that was released for 5 seconds, then release the button you kept pressed while teaching the first value. Entering teaching mode Teaching current value for point 1 Quitting teaching mode Entering teaching mode Teaching current value for point 2 Quitting teaching mode Status of key A Teaching Status of key B STEP LED KEEP PRESSED > 5 s OFF KEEP PRESSED RELEASE RELEASE - KEEP PRESSED > 5 s RELEASE KEEP PRESSED - RELEASE OFF According to WORKING STATUS OFF GREEN if SUCCESSFUL RED blinking if FAILED According to WORKING STATUS PROGRAM LED blinking OFF blinking OFF SELECT LED OFF GREEN if SUCCESSFUL RED blinking if FAILED According to WORKING STATUS OFF OFF According to WORKING STATUS 6. MAINTENANCE AND REPAIR The device does not require regular maintenance. The warranty card contains the terms and conditions. Before returning the device for repairs, it must be cleaned thoroughly. The parts in contact with the medium may contain harmful substances; therefore, they must be decontaminated. Our official form (Returned Equipment Handling Form) must be filled and enclosed in the parcel. Download it from our website www.nivelco.com. The device must be sent back with a declaration of decontamination. A statement must be provided in the declaration that the decontamination process was successfully completed and that the device is clean from any hazardous substances. 7. STORAGE CONDITIONS Ambient temperature: -30...+60 °C (-22...+140 °F) Relative humidity: max. 98%. pkk312en21h06 October 2021 NIVELCO reserves the right to change anything in this manual without notice! Dodávate: MICROWELL spol. s r. o. SNP 2018/42, 927 00 Saa Tel.: (+421) 31/ 770 7585, 770 7082 E-mail: microwell@microwell.sk www.microwell.sk