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Elevator Core Reference Guide

Group 7.2 Rescue Operation - Basic Rescue Mode

Parameter Number

Parameter Name

Units

Default

Available Settings

Access

Change During Run

Scaling

Size (Bytes)

CAN Register

CAN Sub Index

Modbus Register

P7-03

Rescue Mode Speed

Hz / rpm / ft/s / m/s

5.00Hz

P8-02 ... P8-01

RW

Y *Does not take effect until next travel

1 = 0.1 Hz

2

22BFh

0

703

This parameter defines the motor speed during rescue mode operation (when Rescue mode Input is activated), the value is also controlled internally by the power limit function based on the UPS rating entered into parameter P7-04.

The actual achievable speed will be limited depending on a number of factors such as DC bus voltage level, motor, travel speed, system efficiencies, estimated value can be calculated as follows :

Rescue_Mode_Speed_Limit_Equation.svg

It should also be noted that the level of motor load will affect the available DC bus Voltage; in some cases it may be necessary to reduce the Rescue Speed further in order to prevent nuisance Under Voltage (“U-volt”) trips.