Drive Technology \ Drive Automation \ System Integration \ Services Eksploatacijos vadovo pataisa MOVITRAC LTP-B/LTX, LTP-A, LTE-B 2013-03 leidimas 20133618 / LT
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Turinys 1 Nuorodos... 4 2 MOVITRAC LTP-B/LTX... 5 2.1 Thermal motor protection... 5 3 MOVITRAC LTP-A... 6 3.1 Thermal motor protection... 6 4 MOVITRAC LTE-B... 7 4.1 Thermal motor protection... 7 Revision Information regarding UL 3
1 Nuorodos 1 Nuorodos NUORODA Šių keitiklių eksploatacijos vadovai skyriuje "Įrengimas pagal UL" papildomi tokia informacija: MOVITRAC LTP-B/LTX, artikulo numeris 19440413 / EN MOVITRAC LTP-A, artikulo numeris 16884817 / EN MOVITRAC LTE-B, artikulo numeris 20045344 / EN NUORODA Šie skyriai, nepriklausomai nuo jums pateiktų spausdintų leidinių kalbos, remiantis UL reikalavimais atspausdinami visada anglų kalba. 4 Revision Information regarding UL
MOVITRAC LTP-B/LTX Thermal motor protection 2 2 MOVITRAC LTP-B/LTX INFORMATION Only the fuses mentioned in chapter "UL compliant installation" of the operating instructions shall be used for UL compliant installation. 2.1 Thermal motor protection Thermal motor overload protection shall be provided by one of the following means: NEC compliant installation of a motor temperature sensor, see also section "Motor temperature protection (TF/TH)" in the chapter "Electrical Installation" of the operating instructions. Using internal thermal motor overload protection according to NEC (National Electrical Code, US). Thermal motor overload protection can be activated via parameter P4-17. Implementing external measures to ensure thermal motor overload protection according to NEC (National Electrical Code). 2.1.1 Parameter The following additional parameter was added to MOVITRAC LTP-B/LTX inverters to implement internal thermal motor protection according to NEC: P4-17 Thermal motor protection according to NEC 0 / disabled 1 / enabled 2.1.2 Functional principle The motor current is accumulated in an internal memory over the course of time. The inverter goes to fault state as soon as the thermal limit is exceeded (I.t-trP). Once the output current of the inverter is less than the set rated motor current, the internal memory is decremented depending on the output current. When P4-17 is disabled, thermal memory retention is reset upon shutdown or power loss. When P4-17 is enabled, thermal memory retention is maintained upon shutdown or power loss. Revision Information regarding UL 5
3 MOVITRAC LTP-A Thermal motor protection 3 MOVITRAC LTP-A INFORMATION Only the fuses mentioned in chapter "UL compliant installation" of the operating instructions shall be used for UL compliant installation. 3.1 Thermal motor protection MOVITRAC LTP-A is not provided with internal thermal motor overload protection according to NEC (National Electrical Code, US). Thermal motor overload protection shall be provided by the following means: NEC compliant installation of a motor temperature sensor, see also chapter "Motor temperature protection (TF/TH)" in the operating instructions. Implementing external measures to ensure thermal motor overload protection according to NEC (National Electrical Code). 6 Revision Information regarding UL
MOVITRAC LTE-B Thermal motor protection 4 4 MOVITRAC LTE-B INFORMATION Only the fuses mentioned in chapter "UL compliant installation" of the operating instructions shall be used for UL compliant installation. 4.1 Thermal motor protection Thermal motor overload protection shall be provided by one of the following means: NEC compliant installation of a motor temperature sensor, see also section "Motor temperature protection (TF/TH)" in the chapter "Electrical Installation" of the operating instructions. Using internal thermal motor overload protection according to NEC (National Electrical Code, US). Thermal motor overload protection can be activated via parameter P41. Note: This function is available with firmware 1.1 and later. Implementing external measures to ensure thermal motor overload protection according to NEC (National Electrical Code). 4.1.1 Parameter The following additional parameter was added to MOVITRAC LTE-B inverters to implement internal thermal motor protection according to NEC: P41 Thermal motor protection according to NEC 0 / disabled 1 / enabled 4.1.2 Functional principle The motor current is accumulated in an internal memory over the course of time. The inverter goes to fault state as soon as the thermal limit is exceeded (I.t-trP). Once the output current of the inverter is less than the set rated motor current, the internal memory is decremented depending on the output current. When P41 is disabled, thermal memory retention is reset upon shutdown or power loss. When P41 is enabled, thermal memory retention is maintained upon shutdown or power loss. Revision Information regarding UL 7
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