ADL500 • Quick installation guide - Specifications and connection  49
7.9.5 Connection diagram for emergency maneuver (for synchronous motor only)
Emergency maneuver with operator present. This function allows the car to move when there is a power failure in order 
•  This maneuver can be performed only when the drive is in emergency mode, which the control card indicates with 
•  Only for gearless applications (with synchronous motors). 
•  Brake release src button on the 
Brake release src (PAR 11820).
•  When the button is pushed the inverter opens the brake contactor via the Brake Contactor Relay output. 
•  The operator then pushes the button to move the car.
•  With parameter 11822 Em max speed (Emergency manual max. speed) you can set maximum car (or motor) 
speed during this maneuver.  The speed can be expressed in m/s (for the car) or in rpm (for the motor).
•  
11824 Brake lock time, disabling use of the button (which will not release the brake even if pushed).
•  As soon as emergency manual maneuver is resumed, the display (both optional and built-in) automatically shows 
the current car speed (or motor speed if set in rpm) and direction (Fwd or rev). 
•  This maneuver must be disabled in case of inspection.
The car will move (Brake Contactor = Open) only in the following conditions:
•  Emergency Mode: ON (Contactor Closed)
•  Brake release src: ON (Contactor Closed)
•  Emergency Manual V: < Em max speed
•  Contactor Lock Time = 0
Figure 7.9.9: Diagram of main emergency maneuver
ADL550
Digital input X
Digital input Y
Brake Contactor
Control
Card
Emergency Mode
Brake Release Sel 
Brake Release Sel 
Button
Motor Brake 
Contactor BR
Elevator Control Panel