Danfoss VLT AQUA Drive FC 202 Operating Instructions Manual

Also see for VLT AQUA Drive FC 202: Service guide Installation guide Installation guide Operating guide Installation guide

Contents

3.3 Frame size F Panel Options3.3.1 Panel OptionsSpace heaters and thermostatSpace heaters are mounted on the cabinet interior ofenclosure size F10-F14 frequency converters. They arecontrolled via an automatic thermostat, and help controlhumidity inside the enclosure, thereby extending thelifetime of frequency converter components in dampenvironments. The thermostat default settings turn on theheaters at 10 °C (50 °F) and turn them off at 15.6 °C (60°F).Cabinet light with power outletA light mounted on the cabinet interior of enclosure sizeF10-F14 frequency converters increases visibility duringservicing and maintenance. The housing light includes apower outlet for temporarily powering tools or otherdevices, available in 2 voltages:• 230 V, 50 Hz, 2.5 A, CE/ENEC• 120 V, 60 Hz, 5 A, UL/cULTransformer tap set-upIf the cabinet light and outlet, and/or the space heatersand thermostat are installed, transformer T1 requires thetaps to be set to the proper input voltage. A380-480/500 V unit is initially set to the 525 V tap and a525-690 V unit is set to the 690 V tap. This ensures that noovervoltage of secondary equipment occurs if the tap isnot changed before power is applied. See Table 3.8 to setthe proper tap at terminal T1, located in the rectifiercabinet. For location in the frequency converter, see theillustration of the rectifier in Illustration 4.1.Input voltage range [V] Tap to select [V]380–440 400441–490 460491–550 525551–625 575626–660 660661–690 690Table 3.8 Transformer Tap SettingNAMUR terminalsNAMUR is an international association of automationtechnology users in the process industries, primarilychemical and pharmaceutical industries in Germany.Selection of this option provides terminals organised andlabeled to the specifications of the NAMUR standard forfrequency converter input and output terminals. Thisrequires an MCB 112 PTC Thermistor Card and an MCB 113Extended Relay Card.RCD (residual current device)Uses the core balance method to monitor ground faultcurrents in grounded and high-resistance groundedsystems (TN and TT systems in IEC terminology). There is apre-warning (50% of main alarm setpoint) and a mainalarm setpoint. Associated with each setpoint is an SPDTalarm relay for external use. Requires an external window-type current transformer (not supplied).• Integrated into the frequency converter’s safe-stop circuit.• IEC 60755 Type B device monitors AC, pulsed DC,and pure DC ground fault currents.• LED bar graph indicator of the ground faultcurrent level from 10–100% of the setpoint.• Fault memory• TEST/RESET buttonIRM (insulation resistance monitor)Monitors the insulation resistance in ungrounded systems(IT systems in IEC terminology) between the system phaseconductors and ground. There is an ohmic pre-warningand a main alarm setpoint for the insulation level.Associated with each setpoint is an SPDT alarm relay forexternal use.NOTICEOnly one insulation resistance monitor can be connectedto each ungrounded (IT) system.• Integrated into the frequency converter’s safe-stop circuit.• LCD display of the ohmic value of the insulationresistance.• Fault Memory• [Info], [Test], and [Reset] keysManual motor startersProvide 3-phase power for electric blowers often requiredfor larger motors. Power for the starters is provided fromthe load side of any supplied contactor, circuit breaker, ordisconnect switch. Power is fused before each motorstarter and is off when the incoming power to thefrequency converter is off. Up to 2 starters are allowed(only 1 if a 30 A, fuse-protected circuit is ordered). Themanual motor starter is integrated into the frequencyconverter’s STO and includes the following features:• Operation switch (on/off)• Short-circuit and overload protection with testfunction• Manual reset functionMechanical Installation Operating Instructions26 Danfoss A/S © Rev. 06/2014 All rights reserved. MG20Y20233