Elevator Core Reference Guide

Select what type of power supply is being used for Rescue Mode Operation.

P7-02 lets you set the type running mode while in Rescue Mode.

There are 4 types of rescue mode operation, the following points of consideration help select the most suitable mode:

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:

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.

Used to protect overloading/ collapsing of voltage of the UPS power supply which could cause a motor stall condition.

When the output power to the motor exceeds this value for the time set in parameter (P7-16) UPS Overload Time Limit, the drive will ramp down to Stop, apply brakes (if controlled by the drive) and trip on “UPS-L”, to restart a new direction command will need to be provided by the controller.

If value is set to 0.0 then this function is disabled.

Sets the current limit during rescue mode operation. If the drive current exceeds this value then the speed will be reduced until the current level falls below this value.

Sets the Rescue Mode P-Gain to improve speed stability during rescue operation.

Sets the Rescue Mode I-Gain to improve speed stability during rescue operation.

This parameter sets the time that the drive runs for in each direction during the Light Load Detection test after enable. SO if P7-08 is set to 2s then the drive will run forward for 2 seconds then reverse for 2 seconds after a start command is given. The speed the test is conducted at is set via P7-09.

This parameter sets the motor speed ONLY during the Light Load Detection test in each direction. After the test and a direction has been chosen this speed is no longer used and the speed used after the result is set in P7-03.

Sets the extended measurement time which starts of P5-01 has finished.

Increasing this value can help improve the measurement accuracy of the feature.

Shows the result of either the Light Load Detection Test (P7-02 = 1) or the UPS Easiest direction based on measurement result (P7-02 = 2).

This is the maximum allowable speed when the drive is operating in rescue mode and with P7-02 = 3, when this value is reached the drive will command the motor brake to apply.

This is the minimum speed that must be achieved when Energy saving mode is active, further this speed must be achieved within the time set in P7-14, otherwise the drive will apply the brake and automatically carry out the Light Load Detection test (as per P7-02 = 1) on Geared motors (P4-01 = 0 or 1) or use direction from controller (P7-02 = 0) on gearless motors (P4-01 = 3).

This parameter is used in conjunction with P7-13, when Energy Saving mode (P7-02 = 3) is active the speed must be at least the value in P7-13 within the time set in P7-14.

Displays the active supply that the drive is being operated from.

Used in conjunction with parameter P7-04 (UPS rating).

When the value in P7-04 is exceeded for the cumulative time set in this parameter the drive will trip UPS-L.