Electrical Installation - YASKAWA Z1000U Series Quick Start Manual

i.4 Electrical Installation
i.4

Electrical Installation

u
Standard Connection Diagram
Connect the drive and peripheral devices as shown in Figure i.12. It is possible to set and run the drive via the HOA keypad
without connecting digital I/O wiring.
WARNING! Sudden Movement Hazard. Do not close the wiring for the control circuit unless the multifunction input terminal parameters are
properly set. Improper sequencing of run/stop circuitry could result in death or serious injury from moving equipment.
WARNING! Sudden Movement Hazard. Ensure start/stop and safety circuits are wired properly and in the correct state before energizing
the drive. Failure to comply could result in death or serious injury from moving equipment. When programmed for 3-Wire control, a momentary
closure on terminal S1 may cause the drive to start.
WARNING! Sudden Movement Hazard. When using a 3-Wire sequence, set the drive to 3-Wire sequence prior to wiring the control terminals
and set parameter b1-17 to 0 so the drive will not accept a Run command at power up (default). If the drive is wired for a 3-Wire sequence
but set up for a 2-Wire sequence (default), and parameter b1-17 is set to 1 so the drive accepts a Run command at power up, the motor
will rotate in reverse direction at drive power up and may cause injury.
WARNING! Sudden Movement Hazard. Confirm the drive I/O signals and external sequence before executing the application preset
function. Executing the application preset function or setting A1-06 ≠ 0 will change the drive I/O terminal functions and may cause unexpected
equipment operation. Failure to comply may cause death or serious injury.
WARNING! When using the automatic fault restart function with wiring designed to shut off the power supply upon drive fault, make sure
the drive does not trigger a fault output during fault restart (L5-02 = 0, default). Failure to comply will prevent the automatic fault restart
function from working properly.
NOTICE: Inadequate wiring could result in damage to the drive. Install adequate branch circuit short circuit protection per applicable codes.
The drive is suitable for use on a circuit capable of delivering not more than 100,000 RMS symmetrical amperes, 240 Vac maximum (200
V class), 480 Vac maximum (400 V class: 4E oooo and 4W oooo ), and 500 Vac maximum (400 V class: 4U oooo and 4P oooo )
when protected by branch circuit protection devices specified in this document.
NOTICE: When the input voltage is 440 V or higher or the wiring distance is greater than 100 meters, pay special attention to the motor
insulation voltage or use a drive duty motor. Failure to comply could lead to motor insulation breakdown.
NOTICE: Do not connect AC control circuit ground to drive enclosure. Improper drive grounding can cause control circuit malfunction.
NOTICE: Route motor leads U/T1, V/T2, and W/T3 separate from all other leads to reduce possible interference related issues. Failure to
comply may result in abnormal operation of drive and nearby equipment.
Note: The minimum load for the relay outputs M1-M2, M3-M4, MD-ME-MF, and MA-MB-MC is 10 mA.
NOTICE: Create a sequence to shut off power on the power supply side by using a fault relay output as shown in the standard connection
diagram, or create a sequence that prevents the motor shaft from being turned by an external force. If you continue to input power from a
power supply with a large distortion or if an external force causes the motor shaft to continue turning even after an SoH (Snubber Discharge
Resistor Overheat) occurs, the snubber resistor may break.
NOTICE: Do not connect more than one multi-function input to one terminal. Improper wiring may result in drive malfunction. Use an external
power supply when sharing a terminal with more than one input. Do not use the built-in +24 V power supply.
YASKAWA ELECTRIC TOEP C710636 11E Z1000U HVAC MATRIX Drive Quick Start Guide 19