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:

Install the “open type equipment” Lexium 62 Drive System at a maximum surrounding air temperature of 40 °C / 55 °C with derating.
Connect the Lexium 62 Drive System only to a grounded wye source (maximum 480Y/277V).
Install the Lexium 62 Drive System only in a Pollution Degree 2 environment.
According to 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 further information, refer to Electrical Connection - Lexium 62 Servo Drives.
To protect the Lexium 62 Power Supply, use a Class J fuse according to UL 248 with a maximum fuse rating of 50 A / 600 Vac, suitable for use on a circuit capable of delivering up to 50 kA rms symmetrical /480 Vac maximum when protected by Class J fuses sized at maximum 125% percent of the input current rating of the AC/DC converter.
Use an isolating 24 Vdc rated (maximum 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 branch-circuit protective device is connected upstream of the Lexium 62 Drive System; that is to say upstream of the power supply modules LXM62P•••A1, which are used together with the drives.

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. In any and all cases, determine the source of the opening of the branch-circuit protection before re-applying power to the system.

DANGER
	FIRE, ELECTRIC SHOCK OR ARC FLASH Examine and replace if necessary any current-carrying parts or other motor control components in the case of mains- or branch-circuit protection activation. Failure to follow these instructions will result in death or serious injury.

Lexium 62 Drive System	References	SCCR, with line choke	SCCR, without line choke
Lexium 62 Power Supply	LXM62P	50 kA	5 kA
Lexium 62 Servo Drive	LXM62D	50 kA	5 kA
Lexium 62 DC Link Support Module	LXM62LS	50 kA	5 kA

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

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

Notes on Wiring

For the wiring of the Lexium 62 Power Supply and Lexium 62 Servo Drive (for LXM62DD and LXM62DU), use at least 60 °C (140 °F) copper conductors.
For the wiring of the LXM62DC Lexium 62 Servo Drive, use 75 °C (167 °F) copper conductors.
Choose 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

Connection	Torque [Nm] / [lbf in]	Connection cross section [mm²] / [AWG]⁽¹⁾
CN1	2.5 / 22	N/A
CN5	N/A	0.5...16 / 20...6
CN6	N/A	0.75...16 / 18...6
CN7	N/A	0.2...6 / 24...10
CN4	N/A	0.5...1.5 / 20...16
(1) To protect the Lexium 62 Power Supply, use a Class J fuse according to UL 248 with a maximum fuse rating of 50 A / 600 Vac.

For Lexium 62 Servo Drive

Connection	Drive references	Torque [Nm] / [lbf in]	Connection cross section [mm²] / [AWG]
CN1	-	2.5 / 22	N/A
CN8 / CN10	LXM62DD LXM62DU	N/A	0.2...6 / 24...10
CN8_1	LXM62DC	N/A	0.2...1.5 / 24...16
CN8_2	LXM62DC	N/A	4...6 / 12...10
CN5	-	N/A	0.2...1.5 / 24...16
CN4		N/A	0.2...1.5 / 24...16
CN6		N/A	0.2...1.5 / 24...16

Verify whether the screws of the wiring bus (CN1) have been tightened with 2.5 Nm (22 lbf in).
Only use motor cables approved by Schneider Electric that comply with the requirements of NFPA 79.
Before 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.