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5.2.9
UL-conforme installatie
AANWIJZING
Ongeacht de taal van dit document wordt het volgende hoofdstuk vanwege de UL-
vereisten altijd in het Engels en gedeeltelijk in het Frans afgedrukt.
Field wiring power terminals
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Ambient Temperature
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 protection
Thermal motor overload protection shall be provided by one of the following means:
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Parameter
The following parameter must be set to enable the internal thermal motor protection
according to NEC:
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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 in-
ternal memory is decremented depending on the output current.
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Use 75 °C copper wire only.
Tighten terminals to Nm as described in chapter "tightening torque" (→ 2 20).
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 %.
P-41 Thermal motor protection according to NEC
– 0: disabled
– 1: enabled
When P-41 is disabled, thermal memory retention is reset upon shutdown or po-
wer loss.
When P-41 is enabled, thermal memory retention is maintained upon shutdown or
power loss.
Elektrische installatie
Installatievoorschriften
Technische handleiding – MOVITRAC
5
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LTE-B+
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