General Specifications

Transcription

1 General Specifications GS J0H-0E Model MVHK Digital Limit Alarm (DC Type) with Active Color PV Display General This plug-in type Digital Limit Alarm for DC input receives DC current or DC voltage signal. It is equipped with Active color PV display (PV display color changing function). Either points of alarms (relay transfer contact [ab], points) or points of alarms (relay NO contact, points) can be selected. An alarm status in the event of an alarm can be recognized. Equipped with easy-to-see large LED display as standard. Using the economical mode enables the low power consumption operation (normal operation: approx. 0. W, VA). range and each parameter setting can be changed by the operation keys on the front panel. Can be equipped with monitor output ( to V DC, to 0 ma DC or RS- communication). Model and Suffix Codes MVHK- 0-0 / Model Type 0: General use type : JK type (The terminal assignment is same as that of Yokogawa s JK and MHKW.) (Note ) Power : V DC 0% : 00-0 V AC/DC (Operating range: to V) : to V DC (Note ) A: to 0 ma DC (with 0 Ω receiving resistor)(note ) U: DC voltage or DC current signal (shipped with factory-set value)(note ) Z: Custom order Output : Alarm output (transfer contact [ab]), points : Alarm output (NO contact), points Monitor Output : to V DC A: to 0 ma DC P: Communication function (RS-) N: No monitor output Optional Specification /R00: With 00 Ω receiving resistor (Note ) /R0: With 0 Ω receiving resistor (Note ) /SN: Without socket Note : For the type code (JK type), output is points of transfer contacts (ab) only. Note : For the input signal code, factory-set values are as follows: range code No.: ; measured input range: to V DC. For the input signal code A, factory-set values are as follows: range code No.: ; measured input range: to 0 ma DC. Note : Refer to Initial Values (Factory-set Values). Note : Specify /R00 when using the range code No. or. Note : Specify /R0 when using the range code No. or. Ordering Information Specify the model and suffix codes at the time of order. Model and suffix codes: e.g. MVHK-00-UN0/R0 and Display Specificaitons Number of inputs: point signal: Set the measured input range within the instrument input range. Range code No. Instrument input range 0.00 to V DC (H range).00 to +.00 V DC (M range).000 to V DC (L range) 0.00 to 0.00 ma DC * (M range) 0.00 to 0.00 ma DC * (L range) 0.00 to 0.00 ma DC * (M range) to.000 ma DC * (L range) *: 00 Ω receiving resistor; *: 0 Ω receiving resistor resistance: For voltage input: MΩ (00 kω during power off) For current input: 00 Ω or 0 Ω (with external receiving resistor) scaling (displayed value): to (Decimal point position can be set.) PV (measured value) display: -digit, -segment, red/ green LED, character height of. mm Data display: -digit, -segment, green LED, character height of mm Alarm indicator lamp: orange LEDs for points of alarms or orange LEDs for points of alarms. Lights up if an alarm occurs. Economical mode: Turns off the indicating LED if no keystroke is made within the set time. Setting range: 0 (does not go off) or to 0 minutes GS J0H-0E Copyright Jul. 00 rd Edition : Aug. 00 (YK)

2 Active color PV display (PV display color changing function): This function changes the PV display color from green to red or from red to green according to the set PV display color mode shown below. [PV display color mode to be set] Link to alarm : Links to alarm. Link to alarm and alarm : Links to alarm and alarm. Link to alarm to alarm (only for points of alarms): Links to alarm to alarm. SP deviation: Changes the PV display color according to whether measured value is within or out of the set SP deviation. The deviation range (high and low limits) can be changed using a parameter. PV limit: Changes the PV display color according to whether measured value is within or out of the set measured range. The range (high and low limits) can be changed using a parameter. Fixed color: Fixes PV display color in green or red. Output Specifications type: contact Number of outputs: points of contact outputs (transfer contact [ab]) or points of contact outputs (NO contact) Contact rating: 0 V AC/ A, 0 V AC/0. A (resistance load) 0 V DC/ A, 0 V DC/0. A (resistance load) Alarm action: Alarm action action PV high-limit alarm Energized or de-energized under normal condition PV low-limit alarm Energized or de-energized under normal condition Deviation high-limit alarm Energized or de-energized under normal condition Deviation low-limit alarm Energized or de-energized under normal condition Deviation high and low-limit alarm De-energized under normal condition Deviation within high and low-limit alarm De-energized under normal condition Stand-by action can be set to each alarm in the table above. Stand-by action: Stand-by action turns off the PV (measured value) and deviation alarms during the start-up of control and does not allow them to resume until the operation stabilizes. Alarm setting range: Within the set input scaling value Setting resolution: digit (Note ) Setpoint setting: Virtual setpoint when the deviation alarm occurs Setting range: Within the set input scaling value Setting resolution: digit (Note ) Hysteresis setting range: The value resulting from adding a hysteresis value to an alarm setpoint should be within the range of set input scaling value. Setting resolution: digit (Note ) Note : The content of digit is variable according to the input scaling value. Alarm ON delay setting: Condition monitoring time from the establishment of alarm conditions to its output Setting range: 0 to seconds Setting resolution: second (However, about 0. second is to be added to the set time to prevent wrong operation.) Alarm OFF delay setting: Condition monitoring time from the establishment of return-to-normal conditions to its output Setting range: 0 to seconds Setting resolution: second (However, about 0. second is to be added to the set time to prevent wrong operation.) Monitor Output Analog Output Output signal: to V DC or to 0 ma DC Allowable load resistance: kω or more for to V DC 0 Ω or less for to 0 ma DC Output variable range: - to +0% Output scaling: Set any value within the set input scaling value (displayed value). Output accuracy: ±0.% of output span However, the accuracy is limited in the following cases according to the scaling setting. scaling is less than V in the instrument input range H: ±0. (%) (V) scaling is less than. V in the instrument input range M: ±0. (%). (V) scaling is less than 0. V in the instrument input range L: ±0. (%) 0. (V) For current input, apply the value [input range x input resistance] to the above, and add the resistor error 0.%. Communication Output (RS-) The MVHK can be connected to a personal computer, graphic panel, Yokogawa s programmable controller FA-M or programmable controllers of other manufacturers. Standards: EIA RS- Maximum number of connectable units: units Maximum communication distance: 00 m Communication method: -wire half duplex, start-stop synchronization, non-procedural Baud rate: 00, 00, 00 or 00 bps Data length: or bits Stop bit: or bits Parity: Even, odd or none All Rights Reserved. Copyright 00, Yokogawa Electric Corporation GS J0H-0E rd Edition :

3 Communication protocol: PC link, PC link with SUM, MODBUS ASCII, MODBUS RTU or Ladder PC link communication: Communication protocol with a personal computer, graphic panel or UT link module of FA-M MODBUS communication: Communication protocol with a personal computer (SCADA). Ladder communication: Communication protocol with ladder communication module of FA-M and programmable controller of other manufacturers. Standard Performance display accuracy: 0.% digit of instrument input range span Alarm action point setting accuracy: 0.% digit of instrument input range span For current input, add the resistor error 0.%. Response speed: 00 ms (Time to alarm output when the input change is 0 to 0% and alarm setpoint is 0%. When the alarm delay setting and hysteresis are minimum.) Insulation resistance: 00 MΩ/00 V DC between inputs, alarm outputs, power supply and monitor output mutually. Withstand voltage: 000 V AC/minute between inputs, (alarm outputs,, and ), monitor output and power supply mutually. However, the following is excluded. 000 V AC/minute between (alarm outputs and ) and (alarm outputs and ) and between inputs and monitor output. Note : For points of alarms, alarm outputs and are excluded. Power supply voltage: V DC 0% 00-0 V AC/DC (-%, +0%) 0/0 Hz Power consumption: V DC.0 W, 0V DC.W 00 V AC. VA, 00 V AC. VA Effect of power supply fluctuation: 0.% of span or less for the fluctuations within the allowable range of each power supply specification Effect of ambient temperature change: 0.% of span or less for a temperature change of 0 C Mounting, Appearance and Environmental Conditions Construction: Plug-in type Material: Casing: ABS resin (black), UL V-0 Socket: Modified polyphenylene oxide resin, including glass fiber (black), UL V- Mounting method: Wall or DIN rail mounting For side-by-side mounting, provide spacing of mm or more between the products. Connection method: M. screw terminal for input/ output and power supply -pin -piece connector for monitor output External dimensions: (W) x. (H) x (D) mm (including a socket) Weight: Main unit: approx. 0 g Socket: approx. 0 g Operating temperature range: 0 to 0 C Operating humidity range: to 0% RH (no condensation) Operating conditions: Avoid installation in such environments as corrosive gas like sulfide hydrogen, dust, sea breeze and direct sunlight. Accessories Tag number label: sheet Range label: sheet Receiving resistor (supplied when the optional specification code /R00, /R0 or the input signal code A is specified): Spacer (used for DIN rail mounting): Initial Values (Factory-set Values) The table below shows the factory-set values when the input signal code U is specified. For the input signal code, the range code No. is and measured input range is.00 to.00 V DC. For the input signal code A, the range code No. is and measured input range is.00 to 0.00 ma DC. See the table below for other factory-set values. Item Range code No. Measured input range Decimal point position of scaling value scaling value Economical mode Active color PV display Initial value points of alarms points of alarms.00 to +.00 V DC (first decimal place) 0.0 to minutes (fixed in red) Direction of alarm action Alarm Alarm Low-limit alarm Low-limit alarm High-limit alarm Low-limit alarm High-limit alarm High-limit alarm Alarm setting Alarm Alarm Hysteresis (For all of alarms,, and ).0.0 Alarm ON delay 0 second 0 second Alarm OFF delay 0 second 0 second When the monitor output code or A is specified Monitor output A value that scaling value is equivalent to 0 to 00%. ( range is output in linear.) When the monitor output code P is specified Address 0 Baud rate 00 Parity Even Data length bits Stop bit bit Protocol PC link All Rights Reserved. Copyright 00, Yokogawa Electric Corporation GS J0H-0E rd Edition :

4 Front Panel READY lamp Lights up when the power is turned on. Alarm indicator lamp Lights up in the event of an alarm. SET/ENT key Used to switch parameter indication or accept a setpoint. Terminal Assignments Block Diagrams PV (measured value) display Displays a measured value and parameter symbol. DATA display Displays a parameter setpoint or alarm type. UP/DOWN key Pressing the key increases a value, while pressing the key decreases a value. Monitor output terminal (option) Outputs to V DC, to 0 ma DC or RS- communication signal. MVHK-0 - MVHK-0 - MVHK , Alarm, Alarm 0 Monitor output (Communication) B+ A Output + R R: 00 Ω or 0 Ω resistor, externally connected for current input Monitor output (Analog) + Output processing Alarm- output () 0 NO () NC () Alarm- output (0) () () NO NC Power supply L+ N Note: The numbers in indicate the terminal numbers of socket. The numbers in indicate the monitor output terminals. The left most number is. The numbers in ( ) indicate the terminal numbers when MVHK- - (JK or MHKW type) is specified. JK or MHKW type can be specified only for points of alarms. [Notes about the contact configuration for points of alarms] Transfer contacts for points of alarms consist of an NO contact and an NC contact. When using transfer contacts, consideration should be given to the risk of a short due to contact MBB * resulting from non-concurrent action of the NO and NC contacts or to a short ciucuit caused by arcs produced when opening a contact at large current. *: The condition where both NO and NC contacts close when the contact actuates For points of alarm outputs Microcomputer Microcomputer Alarm- output Alarm- output Alarm- output Alarm- output 0 NO Alarm NO NO Alarm NO All Rights Reserved. Copyright 00, Yokogawa Electric Corporation GS J0H-0E rd Edition :

5 External Dimensions Main unit Socket Unit: mm. 0 Receiving resistor -Ø. Mounting hole (depth:.). 0 () DIN rail Monitor output terminal * M. screw 0.. max. * To be added when the monitor output is specified. <Mounting Dimensions> or more or more -. or -M 0 0. Note: For side-by-side mounting, provide spacing of mm or more between the products. For DIN rail mounting, use the supplied spacer to provide spacing of mm between the products. All Rights Reserved. Copyright 00, Yokogawa Electric Corporation GS J0H-0E rd Edition :