Operating instructions i550 cabinet frequency inverter | 24
© 11/2021 · EN · www.Lenze.com
PTC-input X109
In the default setting, the motor temperature monitoring is active! By default, a wire jumper is
installed between the terminals T1 and T2. Before connecting a thermal sensor, remove the
wire jumper.
Connection type Screw terminal, pluggable
Max. cable cross-section mm² 1.5
Stripping length mm 6
Required tool
0.4 x 2.5
Application
T1
Connection of PTC or thermal contact
T2
Sensor types
PTC single sensor (DIN44081)
PTC triplet sensor (DIN44082)
Thermal contact
Electrical installation
3-phase | 480 V
3-phase | 230/240V
3-phase | 400 V1-phase | 120V
1-phase | 230/240V
Control terminals
Relay output
Connection diagram
Brake resistor
Networks
Functional safety
Safe torque o (STO)
PTC input
Preparation
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