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Technical content

Features

Electronic load relays with motor management (ELR-MM) combine fast, wear-resistant, semiconductor switches and modern measurement and evaluation electronics. The active-power input of electrical drives is calculated every 6.6 ms from three currents, voltages, and the phase angle. This enables continuous status monitoring. Freely parameterizable signaling and switching thresholds for detecting under/overloads provide functions that far exceed standard motor protection. All relevant electrical values such as apparent power, active power, reactive power, currents, voltages, and phase angles, as well as the values of the internal operating cycle counter and elapsed-time meter can be requested via the display. Actuators and variable-speed drives, pumps, and tools are switched using the ELR-MM load relay and at the same time monitored and protected against dirt or wear. The ELR W 3/9-500 MM EX is specially designed for use in the chemical and petrochemical industry. A corresponding ex-type examination certificate is available. As an option, the devices can be coupled to fieldbus systems via a defined interface for online monitoring. Technical Data Input Data Operating voltage UB 24 V DC ±20% Maximum current consumption 80 mA Control voltage right/left 24 V DC ±20% Input current right/left 7 mA Input wiring LED, diode for protection against polarity reversal, surge protection Output Data Confirmation Contacts O1 - O4 With 1 signal U B - 1 V/50 mA, maximum Output Data Load Side Operating voltage (conductor voltage) 50 Hz/60 Hz 110 V AC - 550 V AC Reverse voltage 1500 V Load current (see derating curve on page 2) 3 x 8 A (100% operating factor) Electronic Reversing-Load Relay With Motor Management

2 102150_00_en Load current depending on the ambient operating temperature Operating time: 100% operating factor Figure 1 Load current depending on the ambient operating temperature Surge current 360 A (t = 10 ms) Minimum load current 150 mA Residual voltage at IN 1.4 V, typical Residual current in the OFF state 4 mA, typical Reversing frequency right rotation/left rotation (cos ϕ = 0.5)

2.5 Hz, maximum

Shutdown time when overload or underload occurs 45 ms, typical (worst case 70 ms) Output wiring RCV circuit Output Data Load Side (Continued) Load current [A] Ambient operating temperature [°C] General Data Housing dimensions (length x width x height) 94 mm x 62 mm x 122 mm (3.701 x 2.441 x 4.803 in.) Insulating housing version Polycarbonate (PC), color: green Test voltage I/O 2.5 kV rms Ambient operating temperature range -20°C to +60°C (-4°F to +140°F) Standards/specifications EN 61000-4-2/DIN EN 61000-4-2/VDE 0847-4-2; EN 61000-4-3/DIN EN 61000-4-3/VDE 0847-4-3; EN 61000-4-4/DIN EN 61000-4-4/VDE 0847-4-4; EN 61000-4-5/DIN EN 61000-4-5/VDE 0847-4-5; EN 61000-4-6/DIN EN 61000-4-6/VDE 0847-4-6; IEC 60664/IEC 60664 A/DIN VDE 0110 Safe isolation input/output DIN EN 50178 (VDE 0160) Degree of protection according to IEC 60529/EN 60529/DIN VDE 0470-1 IP20 Mounting position Vertical (DIN rail horizontal) Mounting Can be mounted with spacing ≥ 20 mm (0.787 in.)

102150_00_en 3 Connection Data Figure 2 Connection data The following cable cross sections can be connected: Block Diagram Figure 3 Block diagram Safety Data EU-type examination according to ATEX X II (2) GD PTB 03 ATEX 3114 Requirement class according to DIN V 19251 AK4 Category according to EN 60954-1 3 Solid [mm 2] Stranded [mm 2] AWG Stripping Length L [mm] 0.2 - 6 0.2 - 4 25 - 10 8 mm (0.31 in.) Logic µP Parameterization Memory Confirmation

24 V DC

SerialV.24 (RS-232)

4 102150_00_en © PHOENIX CONTACT 01/2005 Technical modifications reserved PHOENIX CONTACT GmbH & Co. KG Flachsmarktstr. 8

32825 Blomberg

+49 - 52 35 - 30 0 +49 - 52 35 - 34 12 00 www.phoenixcontact.com Worldwide Locations: www.phoenixcontact.com/salesnetwork Ordering Data Description Order Designation Order No. Electronic reversing-load relay with motor management. ELR W 3/9-500 MM EX 29 63 69 5 For marking systems and assembly material, see CLIPLINE catalog. Make sure you always use the latest documentation. It can be downloaded from www.download.phoenixcontact.com.