Elevator Core Reference Guide

The drive has an internal brake transistor fitted as standard and is enabled automatically when the regenerative energy from the load raises the drives internal DC bus to 390Vdc for the single and three phase 230V drives and 780Vdc for the 3 phase 400V drive.

The brake resistor must be connected between the +DC and BR Terminals of the drive as shown in the images below, failure to do so can result in damage to the drive/Brake resistor.

*200mA maximum output current capacity in total for both +24V user outputs

By default, the drive operates in positive logic, P1-43 allows negative logic to be set (Not STO1 and STO2 inputs)

P1-02 defines the function of each of the control terminals and should be set to match the connected controller, see section 15.5.2 Control Terminal Function Select.

All equipment installed within the UK or European Union must comply with the applicable UK or European EMC Directive. The installer must be familiar with the Directive and appropriate good EMC practice. Invertek Drives’ products may be considered as a Basic Drive Module or Complete Drive Module according to the EMC standard definition dependent on the drive type. The BDM or CDM may then be incorporated into a Power Drive System. It is the sole responsibility of the installer to ensure that the complete PDS is compliant with the Directive.

This section of the User Guide provides general guidance to ensure compliance can be achieved.

	An optional Cable support bracket is available to allow easy termination of cable shields/screens. Size 2 shown below. Part Number : Size 2 : OPT-3-L3EMC-S2-IN Size 3 : OPT-3-L3EMC-S3-IN Size 4 : OPT-3-L3EMC-S4-IN

Adequate safety earthing must be provided in accordance with local wiring rules and codes of practice. The ground terminal of the drive should be connected back to the common safety earth bar to maintain touch potentials within safe limits.

The ground terminal the drive should be individually connected DIRECTLY to the site ground bus bar (through the EMC filter if installed).

Drive ground connections should not loop from one drive to another, or to, or from any other equipment. Ground impedance must conform to local industrial safety regulations and/or electrical codes.

To meet UL regulations, UL approved ring crimp terminals should be used for all ground wiring connections.

The integrity of all ground connections should be checked periodically.

The Cross-sectional area of the PE Conductor must be at least equal to that of the incoming supply conductor.

The motor ground must be connected to one of the ground terminals on the drive.

As with all inverters, a leakage current to earth can exist. The drive is designed to produce the minimum possible leakage current whilst complying with worldwide standards. The level of current is affected by motor cable length and type, the effective switching frequency, the earth connections used and the type of RFI filter installed. If an ELCB (Earth Leakage Circuit Breaker) is to be used, the following conditions apply:

The safety ground terminal provides a grounding point for the motor cable shield. The motor cable shield connected to this terminal (drive end) should also be connected to the motor frame (motor end). Use a shield terminating, EMI clamp or optional EMC bracket to connect the shield to the safety ground terminal, refer to section 9.6 EMC Compliant Installation.