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5. OPERATION
5.1.2 Wiring check
(1) Power supply system wiring
Before switching on the main circuit and control circuit power supplies, check the following items.
(a) Power supply system wiring
The power supplied to the power input terminals (L
1, L2, L3, L11, L21) of the servo amplifier should satisfy
the defined specifications. (Refer to section 1.2.)
(b) Connection of servo amplifier and servo motor
1) The servo motor power supply terminals (U, V, W) of the servo amplifier match in phase with the
power input terminals (U, V, W) of the servo motor.
M
U
V
W
U
V
W
Servo amplifier Servo motor
2) The power supplied to the servo amplifier should not be connected to the servo motor power supply
terminals (U, V, W). To do so will fail the connected servo amplifier and servo motor.
UVW
UVW
M
Servo amplifier Servo motor
3) The earth terminal of the servo motor is connected to the PE terminal of the servo amplifier.
M
Servo amplifier Servo motor
4) P
1-P2 (For 11kW or more, P1-P) should be connected.
P1
P
2
Servo amplifie
r
(c) When option and auxiliary equipment are used
1) When regenerative option is used under 3.5kW for 200V class and 2kW for 400V class
The lead between P terminal and D terminal of CNP2 connector should not be connected.
The generative brake option should be connected to P terminal and C terminal.
A twisted cable should be used. (Refer to section 14.2.)