Yaskawa Z1000U HVAC Matrix Bypass - Manual (Page 214)

n Z1-34: Loss of Load Drive Time
While in Drive mode, the Loss of Load detection conditions must be met for the length of time entered here before detecting
a loss of load.
No. Name Setting Range Default
Z1-34 Loss of Load Drive Time 0.0 to 300.0 s 1.0 s
n Z1-35: Loss of Load Bypass Output Current
The motor current must be equal to or less than this value to detect a loss of load.
No. Name Setting Range Default
Z1-35 Loss of Load Bypass Output Current 0.0 to 999.9 0.0 A
n Z1-36: Loss of Load Bypass Time
While in Bypass mode, the Loss of Load detection conditions must be met for the length of time entered here before detecting
a loss of load.
No. Name Setting Range Default
Z1-36 Loss of Load Bypass Time 0.0 to 300.0 1.0 s
n Z1-37: Set Time
Changes the LCD display to time setting to set the Real Time Clock.
No. Name Setting Range Default
Z1-37 Set Time 0 to 2 0
Setting 0: Normal Display
Setting 1: Displays Time and Date Setting Mode
Setting 2: Reset Time
n Z1-38: HOA Source Select
No. Name Setting Range Default
Z1-38 HOA Source Select 0 to 2 0
Setting 0: Operator
The HOA keypad controls the HAND/OFF/AUTO commands.
Setting 1: Digital Inputs
The H1-oo multi-function digital input parameters control the HAND/OFF/AUTO commands.
Setting 2: Serial Communications
The serial communications protocol selected in parameter Z3-01 control the HAND/OFF/AUTO commands.
n Z1-39: Drive/Bypass Source Select
No. Name Setting Range Default
Z1-39 Drive/Bypass Source Select 0 to 2 0
Setting 0: Operator
The HOA keypad selects the Drive or Bypass as the source.
Setting 1: Digital Inputs
The H1-oo multi-function digital input parameters select the Drive or Bypass as the source.
Setting 2: Serial Communications
The serial communications protocol selected in parameter Z3-01 selects the Drive or Bypass as the source.
n Z1-40: Auto Transfer Wait Time
Sets the length of time that the bypass controller will wait before switching to bypass when Auto Transfer is enabled and a
drive fault is detected.
5.14 Z: Bypass Parameters
214 YASKAWA SIEP YAIZ1D 01A Z1000U HVAC MATRIX Drive Bypass Technical Manual