BENTLY 3500 92 136180-01 Remove the rubber grommets and cut adequate holes into them. Slide the grommets onto the power cables the conical part downwards. Seal the lead-through plate holes with the grommets. 5. Strip off the outer sheathing of the cables under the 360 degrees grounding clamps and fasten the clamps onto the stripped parts of the cables. 6. Twist the shields of the cables into pigtails and connect the pig tails under the grounding screws with cable lugs. Keep the pigtails short to minimize electromagnetic emission. See the following two figures. 7. Connect the motor cable conductors to the U2, V2 and W2 terminals. 4 5 6 7 Installing the drive 53 ACH550-01 User's Manual 8. Turn the switch assembly plate back to its original position and fasten the two fastening screws. 9. Connect the input cable conductors to the main switch terminals U1, V1 and W1. 10. Connect wires to the auxiliary contact (if used). 8 8 9 10 54 Installing the drive ACH550-01 User's Manual 11. Connect the control cables. See Control wiring (IP54) on page 55. 12. Replace the front cover. See Re-install cover (IP54) on page 63. Tightening torques Frame size Tightening torque U1, V1, W1 U2, V2, W2 Earthing PE N·m (lbf·ft) N·m (lbf·ft) N·m lbf·ft R1 0.8 (0.6) 1.4 (1.0) 1.4 1 R2 0.8 (0.6) 1.4 (1.0) 1.4 1 R3 2 (1.5) 1.8 (1.3) 1.8 1.3 Auxiliary contact: 0.8 N·m (0.6 lbf·ft) Installing the drive 55 ACH550-01 User's Manual Control wiring (IP54) 1. On each control cable, strip the sheathing back far enough to expose the copper wire shield for the cable clamp. Also strip the individual wires. 2. Clamp the control cables. 3. Connect the control wires to the drive terminals. WARNING! All ELV (Extra Low Voltage) circuits connected to the drive must be used within a zone of equipotential bonding, i.e. within a zone where all simultaneously accessible conductive parts are electrically connected to prevent hazardous voltages appearing between them. This is accomplished by a proper factory grounding. For completing the connections, go to chapter Application macros and wiring. 1 2 3 Tightening torque: 0.4 N·m (0.3 lb·ft) 56 Installing the drive ACH550-01 User's Manual Power wiring (IP21) 1. Open the appropriate knockouts in the connection box. 2. Install the cable clamps for the input power and motor cables. 1 2 Installing the drive 57 ACH550-01 User's Manual 3. Install the connection box and tighten the cable clamps. Note: The connection box can be left out in cabinet installations if the cabinet is grounded. Apply 360° grounding of the cable shields at the cable entries of the cabinet. 58 Installing the drive ACH550-01 User's Manual 4. On the input power cable, strip the sheathing back far enough to route individual wires. 5. On the motor cable, strip the sheathing back far enough to expose the copper wire shield so that the shield can be twisted into a bundle (pigtail). Keep the bundle (pigtail) not longer than five times its width to minimise noise radiation. 360° grounding under the clamp is recommended for the motor cable to minimise noise radiation. In this case, remove sheathing at the cable clamp. 6. Route both cables through the clamps. 7. Strip and connect the input power and motor wires and the input power grounding wire to the drive terminals. Frame size R6: See the figures on page 49. 8. Connect the bundle (pigtail) created from the motor cable shield to the ground (eart |
