Emotron M20 Shaft Power Monitor
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Emotron M20 Shaft Power Monitor Data Sheet English

The M20 provides complete flexibility in terms of the type of protection required for your application. You may select either overload and underload protection or simply overload with pre-alarm or underload with pre-alarm. Independent response delays are selectable for both overload and underload protection. Additional flexibility is provided in the form of programmable output relays, number of start attempts, number of reversing attempts etc. Inst ruc tio nm a Eng nual lish *) *)Terminal covers optional. Emotron M20 and current transformer (CT), both for mounting on standard DIN rail 35mm....

Motor and CT less than 100 A RATED MOTOR CURRENT [A] CURRENT TRANSFORMER TYPE and NUMBER OF WINDINGS CTM 010 In order to ensure an accurate calibration of the M20, it is essential that you use the correct CTM and apply the exact number of windings in accordance with the tables. Table 2 RATED MOTOR CURRENT [A] CURRENT TRANSFORMER TYPE and NUMBER OF PRIMARY WINDINGS NOTE: The current transformer (CTMxxx) must be placed in the same phase that is connected to terminal 9, phase L1, see Fig. 2.

Technical Data Dimensions (WxHxD) Current input Current transformer; CTM 010, 025, 050 and 100. Input 0-55 mA. (>100 A extra transformer needed) Power consumption Start-up delay 0-50% of rated motor power Relay output Analogue output Digital input Max. 240 VAC or 48 VDC. High: ≥24 VAC/DC, Low: <1 VAC/DC. Reset >50 ms Terminal wire size Use 75°C copper (CU) wire only. 0.2-4.0 mm2 single core (AWG12). 0.2-2.5 mm2 flexible core (AWG14), stripped length 8 mm (0.32") Terminal tightening torque ±2%, ±1 unit cos phi>0.5; excl. current transformer; +20°C (+68°F) Temperature tolerance Operating...

Technical Data for Current Transformer (CT) Type *)Weight including 1m (39 inch) cable. Please note that max. length of the CTM cable is 1 m and this cable cannot be extended. Accessories and documentation Article number Front Panel Kit 1 (2xterminal covers included) Instruction manual (Swedish) Instruction manual (English) Instruction manual (German) Instruction manual (Dutch) Instruction manual (Spanish) Instruction manual (French) Instruction manual (Russian) EU (European Union) specifications EMC Electrical safety Rated insulated voltage Rated impulse withstand voltage Pollution degree...

Parameter List Window 00 Alarm indication Measured shaft power in % of rated power Measured shaft power in kW Measured shaft power in % of rated power Measured shaft power in HP Measured line voltage Measured current Parameter lock Monitor function OVER- and UNDERLOAD, OVERLOAD and OVERLOAD, UNDERLOAD UNDERLOAD MIN Main Alarm (relay R1) MAX Main Alarm (relay R1) MAX Main Alarm margin MIN Main Alarm margin Start delay Response delay, overload Response delay, underload Pause/Reverse time Autoreset (start attempts) Rated motor power Rated current Main alarm latch Alarm at no motor current

Main Alarm relay R1 Relay function Digital input Block timer Analogue output Analogue Out high value Factory defaults * See Special functions in chapter 9, Emotron M20 Instruction manual. ** See Setting analogue output range in chapter 9, Emotron M20 Instruction manual.

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