Wiring
3.3.5 Wiring Main Circuit Terminal Blocks
3 -16
* 1.
Servopacks with a capacity of 30 to 400 W do not have built-in regenerative resistors. If the regenerative energy
exceeds the specified value, connect an external regenerative resistor. Refer to 4.6.2
Calculating the Required
Capacity of Regenerative Resistors.
*
2.
Regenerative resistor power losses are allowable losses. Take the following action if this value is exceeded.
·Remove the lead from the internal regenerative resistor in the Servopack.
·Install an external regenerative resistor.
*
3.
An external regenerative resistor must be connected to Servopacks with a capacity of 6.0 kW or higher. The fol-
lowing Regenerative Resistor Units are provided for this purpose.
For the SGDH-60AE: JUSP-RA04 (allowable loss: 180 W)
For the SGDH-60DE and 75DE: JUSP-RA18 (allowable loss: 180W)
For the SGDH-75AE to 1EAE: JUSP-RA05 (allowable loss: 350W)
For the SGDH-1ADE and 1EDE: JUSP-RA19 (allowable loss: 350W)
Note
External Regenerative Resistor Units are optional. Refer to
4.6 Selecting a Regenerative Resistor
for details.
3.3.5 Wiring Main Circuit Terminal Blocks
Observe the following precautions when wiring main circuit terminal blocks.
CAUTION
!
D
Remove the terminal block from the Servopack prior to wiring.
D
Insert only one wire per terminal on the terminal block.
D
Make sure that the core wire is not electrically shorted to adjacent core wires.
D
Reconnect any wires that were accidentally pulled out.
Servopackswith a capacity below1.5 kW will have connector-type terminal blocksfor maincir-
cuit terminals. Follow the procedure below when connecting to the terminal block.
J
J
Connection Procedure
1.
Strip the end of the wire.
8 to 9 mm (0.31 to 0.35 in)
2.
Open the wire terminal on the terminal block housing (plug) with the tool using the proce-
dure shown in Fig. A or B.
·
Insert the hook end of the provided tool into the slot as shown in Fig. A.
Press on the lever end to open the wire terminal.
·
Use a standard flat-blade screwdriver (blade width of 3.0 to 3.5 mm (0.12 to 0.14 in)).
Put the blade into the slot, as shown in Fig. B, and press down firmly to open the wire
terminal.
Either the procedure shown in Fig. A or B can be used to open the wire insert opening.
3
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