Yaskawa Z1000U HVAC Matrix Bypass - Manual (Page 76)

3.2 Standard Connection Diagram
Connect the bypass and peripheral devices as shown in Figure 3.1 . It is possible to set and run the bypass via the HOA keypad
without connecting digital I/O wiring. This section does not discuss drive operation; Refer to Start-Up Programming &
Operation on page 109 for instructions on operating the drive.
WARNING! Fire Hazard. Branch Circuit protection is required to be installed according to applicable local codes and the requirements listed
on the bypass nameplate. Failure to comply could result in fire and damage to the bypass and drive or injury to personnel. Bypass models
without soft-starter option PW are suitable for use on a circuit capable of delivering not more than 100,000 RMS symmetrical amperes, 208
Vac and 480 Vac. Bypass models D169 to D211 and B180 to B414 with option PW are also suitable for use on a circuit capable of delivering
not more than 100,000 RMS symmetrical amperes, 208 Vac and 480 Vac. Bypass models D024 to D143 and B011 to B156 with option PW
are suitable for use on a circuit capable of delivering not more than 65,000 RMS symmetrical amperes, 208 Vac and 480 Vac.
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.
Note: The minimum load for relay outputs DO-7, DO-8, DO-9, DO-10, M1-M2, M3-M4, M5-M6, and MA-MB-MC is 10 mA.
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 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.
NOTICE: 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.
3.2 Standard Connection Diagram
76 YASKAWA SIEP YAIZ1D 01A Z1000U HVAC MATRIX Drive Bypass Technical Manual