Power and Encoder Connection

General

Hazardous voltages may be present at the motor connection. The motor itself generates voltage when the motor shaft is rotated. AC voltage can couple voltage to unused conductors in the motor cable.

DANGER
	ELECTRIC SHOCK Verify that no voltage is present prior to performing any type of work on the drive system. Block the motor shaft to prevent rotation prior to performing any type of work on the drive system. Insulate both ends of unused conductors of the motor cable. Only touch the motor shaft or the mounted output components if all power has been disconnected. Verify compliance with all local and national electrical code requirements as well as all other applicable regulations with respect to grounding of all equipment. Failure to follow these instructions will result in death or serious injury.

DANGER

ELECTRIC SHOCK

Verify that no voltage is present prior to performing any type of work on the drive system.
Block the motor shaft to prevent rotation prior to performing any type of work on the drive system.
Insulate both ends of unused conductors of the motor cable.
Only touch the motor shaft or the mounted output components if all power has been disconnected.
Verify compliance with all local and national electrical code requirements as well as all other applicable regulations with respect to grounding of all equipment.

Failure to follow these instructions will result in death or serious injury.

DANGER
	ELECTRIC SHOCK CAUSED BY INSUFFICIENT GROUNDING Verify compliance with all local and national electrical code requirements as well as all other applicable regulations with respect to grounding of the entire drive system. Ground the drive system before applying voltage. Do not use conduits as protective ground conductors; use a protective ground conductor inside the conduit. The cross section of the protective ground conductor must comply with the applicable standards. Do not consider cable shields to be protective ground conductors. Failure to follow these instructions will result in death or serious injury.

DANGER

ELECTRIC SHOCK CAUSED BY INSUFFICIENT GROUNDING

Verify compliance with all local and national electrical code requirements as well as all other applicable regulations with respect to grounding of the entire drive system.
Ground the drive system before applying voltage.
Do not use conduits as protective ground conductors; use a protective ground conductor inside the conduit.
The cross section of the protective ground conductor must comply with the applicable standards.
Do not consider cable shields to be protective ground conductors.

Failure to follow these instructions will result in death or serious injury.

The motor is designed for operation via a drive. Connecting the motor directly to AC voltage will damage the motor and can cause fires and initiate an explosion.

DANGER
	POTENTIAL FOR EXPLOSION Only connect the motor to a matching, approved drive in the way described in the present documentation. Failure to follow these instructions will result in death or serious injury.

Drive systems may perform unintended movements if unapproved combinations of drive and motor are used. Even if motors are similar, different adjustment of the encoder system may be a source of hazards. Even if the connectors for motor connection and encoder connection match mechanically, this does not imply that the motor is approved for use.

WARNING
	UNINTENDED MOVEMENT Only use approved combinations of drive and motor. Failure to follow these instructions can result in death, serious injury, or equipment damage.

See Approved Servo Drives.

Protective Ground Conductor Connection

SH3040	SH3055 ... SH3205

Ground the motor via a grounding screw if grounding via the flange and the protective ground conductor of the motor cable is not sufficient. Use parts with suitable corrosion protection. Note the required tightening torque and the property class of the grounding screw, see Tightening Torque and Property Class Of Screws Used.

Assembling Cables

Insulate unused wires individually and, if necessary, at both ends of the wire.

Note the EMC requirements for motor cables and encoder cables, see Electromagnetic Compatibility (EMC).
Use equipotential bonding conductors for equipotential bonding.

Connecting the Cables

Incorrect installation of the cable may damage the insulation. Broken conductors in the cable or improperly connected connectors may promote arcing within the cable.

DANGER
	ELECTRIC SHOCK, ARC FLASH AND FIRE Disconnect all power before plugging in or unplugging the connectors. Verify correct pin assignment of the connectors according to the specifications in this section before connecting the cables. Verify that the connectors are properly inserted and locked before applying power. Avoid forces or movements of the cable at the cable entries. Failure to follow these instructions will result in death or serious injury.

DANGER

ELECTRIC SHOCK, ARC FLASH AND FIRE

Disconnect all power before plugging in or unplugging the connectors.
Verify correct pin assignment of the connectors according to the specifications in this section before connecting the cables.
Verify that the connectors are properly inserted and locked before applying power.
Avoid forces or movements of the cable at the cable entries.

Failure to follow these instructions will result in death or serious injury.

Connection:
- For motors with two-cable connection:
  
  Place the female connector of the motor cable onto the motor connector and tighten the union nut. Proceed in the same manner with the connection cable of the encoder system.
- For motors with one-cable connection (SH3-OMC):
  
  Place the female connector of the hybrid cable onto the motor connector and tighten the union nut.
Keep the cables from being twisted when tightening the union nut.
Connect the cables to the servo drive according to the wiring diagram of the servo drive.
Ground the shield to a large surface area. See the user guide of the servo drive for information on connecting the shield.