Conditions for UL / CSA Compliant Use

General

If you use the Lexium 62 Drive System in accordance with UL or CSA standards, you must additionally, aside from the installation requirements stated in the present document, meet the following conditions:

oInstall the open type equipement Lexium 62 Drive System at a maximum surrounding air temperature of 40 °C / 55 °C with derating.

oConnect the Lexium 62 Drive System only to a solidly grounded wye source (maximum 480Y/277V).

oInstall the Lexium 62 Drive System only in a Pollution Degree 2 environment.

oAccording to UL 508C / UL 61800-5-1 rules, direct measurement of motor over-temperature is required. Therefore, connect the temperature sensor of the motor to connection CN8 or CN10, depending on the drive reference (whether it be a Single Drive whereas the connection is on CN8, or a Double Drive whereas the connections are on CN8 and CN10; one sensor respectively on each connector. For more details, refer to Electrical Connection - Lexium 62 Cabinet Drive.

oTo protect the Lexium 62 Power Supply, use a Class J fuse according to UL 248 with a maximum fuse rating of 60 A / 600 Vac.

oUse an isolating 24 Vdc rated (max. 42.4 V peak) power supply for control circuits.

Integral solid-state short circuit protection does not provide branch circuit protection. Branch circuit protection must be provided in accordance with the National Electrical Code and any additional local codes, or the equivalent.

Short-Circuit Current Rating (SCCR)

Only connect the Lexium 62 Drive System to a mains supply network not exceeding the non-operational case of SCCR (Short Circuit Current Rating) from following table, or take appropriate measures according to UL 508 A SB4 in the supply (feeder) circuit of the control cabinet to limit the short circuit current to a value below the least SCCR of those devices you are using from the following table.

NOTE: The opening of the branch-circuit protective device (fuses in the case of UL conformance, or any circuit breaker) may be an indication that an invalid condition has been interrupted. To reduce the risk of fire or electric shock, current-carrying parts and other components of the controller must be examined and replaced if damaged. If burnout of the current element of an overload relay occurs, the complete overload relay must be replaced.

According to CSA 22.2 No.14, only a short circuit current rating of 5 kA is permissible.

NOTE: Line reactors according to UL 508 A (SB 4.2.1 Exception No. 1) are not required to have a short-circuit current rating (SCCR).

Notes on Wiring

oFor the wiring of the Lexium 62 Power Supply and Lexium 62 Cabinet Drive (for LXM62DD and LXM62DU), use at least 60 °C (140 °F) / 75 °C (167 °F) copper conductors.

oFor LXM62DC13, use at least 75 °C (167 °F) copper conductors.

oChoose the cross-section according to the load of the system and selected overload protection in your application.

Consider the applicable cross section for the terminal blocks according to following tables:

For Lexium 62 Power Supply

For Lexium 62 Cabinet Drive

oVerify whether the screws of the wiring bus (CN1) have been tightened with 2.5 Nm (22 lbf in).

oOnly use motor cables approved by Schneider Electric and comply with the requirements of NFPA 79.

oBefore using wiring with Lexium 62 DC Link Terminal, observe the Cable selection guidelines for wiring with Lexium 62 DC link terminal.

NOTE: The drive integrates an overload protection between the drive module and the motor.

DC Bus Coupling

When using the DC bus connection on CN7 of the Lexium 62 Power Supply, ensure that the current is limited to 35 A via this connection with an appropriate fuse or circuit breaker.