This manual describes the special version of the MOVITRAC® 31C frequency inverter for crane control. It provides all the information you need about this version, including technical data, installation instructions, operating instructions, etc.
This document serves as a supplementary guide for the SEW MOVITRAC 31C frequency inverter, specifically the special version equipped for crane control applications such as trolleys for bridge cranes and hoists. It details the differences between this special version and the basic model, including the implementation of two operating modes: motorized potentiometer mode for ground control and fixed setpoint mode for radio control.
| Operating Modes | Motorized potentiometer mode and Fixed setpoint mode |
|---|---|
| Input Signal for Mode Selection | 0..5V for Motorized potentiometer, 7.5..30V for Fixed setpoint |
| Limit Switch Inputs | TL. 48/49/50/51 |
| External Fault Input | TL. 36/37 |
The two modes are motorized potentiometer mode for ground control and fixed setpoint mode for radio control.
Terminals TL. 48, TL. 49, TL. 50, and TL. 51 are used for monitoring preliminary and ultimate limit switches.
The inverter performs a rapid stop ramp and inhibits the output stage while applying the brake.