Sew Eurodrive MOVITRAC LTE-B+ Manual Del Producto página 42

Planificación de proyecto variador
5
Instalación conforme a UL
5.2 Instalación conforme a UL
5.2.1 Field wiring power terminals
5.2.2 Ambient Temperature
5.2.3 Thermal motor protection
Parameter
Functional principle
42
Manual del producto – MOVITRAC
AVISO
El siguiente capítulo se imprime siempre en idioma inglés y en parte en francés, in-
dependientemente del idioma de esta documentación, debido a los requerimientos
UL.
• Use 75 °C copper wire only.
• Tighten terminals to Nm as described in chapter "tightening torque" (→ 2 54).
The units in IP20 are suitable for an ambient temperature of 40 °C, max. 50 °C
The units in IP66 are suitable for an ambient temperature of 40 °C, max 45 °C.
1) 200 – 240 V, 2.2 kW, max. 45 °C
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 opera-
ting instructions.
• Using internal thermal motor overload protection according to NEC (National Elec-
trical Code, US). Thermal motor overload protection can be activated via parame-
ter P-41.
• Implementing external measures to ensure thermal motor overload protection
according to NEC (National Electrical Code).
• The motor overload protection (current limit P-54) must be limit to maximum
150 %.
The following parameter must be set to enable the internal thermal motor protection
according to NEC:
• P-41 Thermal motor protection according to NEC
– 0: disabled
– 1: enabled
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).
®
LTE-B+
1)
.