Yaskawa Z1000U - Manual (Page 70)

3.8 Main Circuit Wiring
This section describes the functions, specifications, and procedures required to safely and properly wire the main circuit in
the drive.
NOTICE: Do not solder the ends of wire connections to the drive. Soldered wiring connections can loosen over time. Improper wiring practices
could result in drive malfunction due to loose terminal connections.
NOTICE: Do not switch the drive input to start or stop the motor. Frequently switching the drive on and off shortens the life of the DC bus
charge circuit and the DC bus capacitors, and can cause premature drive failures. For the full performance life, refrain from switching the
drive on and off more than once every 30 minutes.
u Main Circuit Terminal Functions
Table 3.2 Main Circuit Terminal Functions
Drive Model 2o0028 to 2o0248 4o0011 to 4o0414
Function Page
Terminal Type
R/L1
Main circuit power supply input Connects line power to the drive 57 S/L2
T/L3
U/T1
Drive output Connects to the motor 57 V/T2
W/T3
p1, n1 Momentary power loss recovery unit input
Available for connecting a momentary power
loss recovery unit option
–
100 Ω or less 10 Ω or less Grounding terminal 77
3.8 Main Circuit Wiring
70 YASKAWA ELECTRIC TOEP C710636 10B Z1000U HVAC MATRIX Drive User Manual