Current consumption (kW) Current consumption (kW) Smart Power Monitor KM50-C1-FLK CSM KM50-C1-FLK DS E 1 2 Low Cost Power Monitor for On-panel Mounting and Display Assists Energy-saving Analysis Power and current can be measured simultaneously. Measurement of flow rates with a pulse conversion function. Simple temperature measurements with Temperature Sensor included in the Unit. High-precision Measurements Measurement of generated power (regenerative power), leading reactive power, lagging reactive power, and consumed power. Power measurements on the primary side of inverters, which are widely used to save energy. Automatic range switching for accurate measurement of standby and stopped power. Energy-saving Functions Conversion to monetary cost. Alarm outputs can be selected for active power, reactive power, regenerative power, current, For the most recent information on models that voltage, or power factor. have been certified for safety standards, refer to The Power Monitor can log measurement data and supports Modbus communications. your OMRON website. Installation and Settings Simple measurements without voltage wiring. Note: Not valid for billing applications. Incorrect voltage wiring detection. Refer to Safety Precautions on page 9. Features Functions That Support Energy-saving Energy Management with High-precision Analysis Measurements Total Regenerated Energy Measurement Pulse Measurement and Conversion In addition to the consumed energy (total regenerative power 1. Flow rates can be measured at the same time as power by consumption), generated power (total regenerative energy) can also inputting flow pulses. (Two inputs are supported.) be measured. To support energy-saving analysis, power consumption can be A single Power Monitor can measure equipment that effectively uses compared with the flow rate of air, gas, or other fluids with a single power generated by reverse motor rotation. Unit. 2. Pulse inputs can be counted, or used to measure the ON time. Total Reactive Power Measurement The consumption rate of a device can be measured by dividing the In addition to instantaneous reactive power, the total leading or power consumption with the measured number of operations or operation time. lagging power consumption can also be measured. Together with peak power measurements, this function aids with Pulse Input Count Measurement monitoring the power distribution equipment. Automatic Range Switching Pulses Automatic range switching enables high-accuracy 12 3 KM50-C measurements even for microcurrents. Standby and stopped power can be accurately measured. Pulse Input ON Time Measurement When measured at the distribution board, the total of the distributed values is almost the same as the base measurement. Pulses Previous product New KM50-series Power Monitor 30 30 KM50-C 10 s 3 s 5 s Simple Temperature Measurement KM50 Power Monitors have a thermistor chip built onto the panel 020 40 60 80 100 0 5 40 60 80 100 surface for easy measurement of the panel surface temperature. Current (A) Current (A) The temperature display can be offset to match the room temperature 1A 1A 1A to manage trends. 75mA For currents below approx. 5% of the rated current, the Power Monitor automatically changes to microcurrent measurement mode to accurately measure microcurrents. You can measure microcurrents of 75 mA with a CT with a rated current of 100 A. (Reference Value) You can measure microcurrents of 4 mA with a CT with a rated current of 5 A. (Reference Value) Note: Reference values are typical values. Actual values may vary. Inverter Compatibility Measurements can be made on the primary side of an inverter. Power consumption can be measured even after installing inverters which are widely used to save energy. This enables you to accurately grasp the effect obtained by introducing the inverter. 1KM50-C1-FLK Functions That Support Saving Energy Functions That Support Installation and Settings Conversion to Monetary Cost The total power consumption can be converted to the equivalent Simple Measurement monetary cost. The simple measurement function calculates the power from a Displaying the cost of the wasted energy can be used to support fixed voltage and the measured current using a fixed power factor. energy-saving measures. This function can be used when the voltage cannot be input to the KM50 due to onsite conditions or wiring arrangements. Alarm Output If the Simple Measurement parameter is set to ON, the fixed An alarm can be output when active power exceeds a voltage and fixed power factor can be set. certain limit. There are two outputs a pulse output and an The simple measurement function can be used to get an output for alarm selection. approximate power consumption of an installed circuit without Alarms can also be set up for generated power (regenerative power), wiring and measuring the voltage. Therefore, you must set the current, voltage, power factor, or reactive power to assist plant voltage and power factors to appropriate levels. monitoring. Fixed values are used for the voltage and power factor, so the accuracy specifications do not apply. Active power measurement value * Set the voltage to 100 V when performing simple measurements on a single-phase, three-wire power supply. Active power threshold Incorrect Wiring Detection Incorrect voltage wiring can be detected. If any mistakes were made during installation, they are automatically detected, reducing the time required for checking after installation. Active power alarm output ON Output Output This also reduces the risk of having to restart when a mistake is found. ON. ON. Active power alarm output OFF Communications Up to 99 KM50 Power Monitors can be connected using RS-485 Modbus. Built-in Logging Function The energy use of each device can be managed with minimal wiring. The total power consumption can be saved in internal memory every 5 minutes, hour, day, or month. Data can be saved as follows: 5-minute data for two days, 1-hour data CompoWay/F: 31 Power Monitors Terminating for eight days, 1-day data for month, and 1-month data for one year. Modbus: 99 Power Monitors resistance RS-485 Data Logging Cycle and Amounts Every 5 min: 48 hours of data *1 Every hour: 25 hours of data *2 Total power consumption Every day: 8 days of data Transmission distance: 500 m Every month: 13 months of data Active power, current, voltage, and Every day: 8 days of data maximum/minimum power factors *1 The data that is logged with a 5-minute cycle can be read out only by using RS-485 communications. Readout is not possible with key operations on the Power Monitor. *2 Up to 48 hours of data can be read out using communications. Ordering Information KM50-C Smart Power Monitor Power supply Model Applicable circuits Dimensions Communications Protocol voltage Shared with Single-phase, 2-wire: 100 to 240 VAC CompoWay/F: 31 nodes, measurement KM50-C1-FLK Single-phase, 3-wire: 100/200 VAC 48 48 84 (H W D) RS-485 Modbus: 99 nodes (Both are voltage input Three-phase, 3-wire: 100 to 240 VAC supported by the same model.) 100 to 240 VAC CTs These CTs must be used with the KM50/KM20-B40/-FLK. Do not use them with any other products. Model Rated primary current Rated secondary current Installation KM20-CTF-5A 5 A KM20-CTF-50A 50 A KM20-CTF-100A 100 A Special output Installed separately KM20-CTF-200A 200 A KM20-CTF-400A 400 A KM20-CTF-600A 600 A Note: CT Cables are not included with the CTs. CT Cable Model Cable length KM20-CTF-CB3 3 m Note: Either use the CT Cable specified by OMRON or use 1.25-B3A crimp terminals and AWG22 wire from J.S.T. Mfg. Co., Ltd. 2