Parameter Details
5
5.14 Z: Bypass Parameters
YASKAWA SIEPYAIH6B01A HV600 AC Drive Bypass Technical Reference 437
■ Z1-36: Loss of Load Bypass Det Time
No.
(Hex.)
Name Description
Default
(Range)
Z1-36
(85E9)
Loss of Load Bypass Det
Time
The motor current must be equal to or less than this value to detect a loss of load. 1.0 s
(0.0 - 300.0 s)
■ Z1-39: Drive/Bypass Source Select
No.
(Hex.)
Name Description
Default
(Range)
Z1-39
(85EC)
Drive/Bypass Source Select Sets the function to select the Drive or the Bypass as the source of Drive/Bypass Mode selection. 0
(0 - 3)
0 : Keypad
The HOA keypad selects the Drive or Bypass as the source.
Drive/Bypass hotkeys work. Z2-0x = 33 Drive/Bypass is disabled.
1 : Digital Input
Z2-xx parameters select the Drive or Bypass as the source.
The Drive/Bypass hotkeys are disabled. Z2-0x = 33 Drive/Bypass works.
2 : Serial Communications
The serial communications protocol selected in H5-08 selects the Drive or Bypass as the source.
The hotkey and DI are disabled, Drive/Bypass by register 8400, bit 12 only (via BACNet, Modbus, P1, N2).
3 : Option PCB
The hotkey and DI are disabled, Drive/Bypass by register 8400, bit 12 only (via Option PCB).
■ Z1-40: Auto Transfer Delay Time
No.
(Hex.)
Name Description
Default
(Range)
Z1-40
(85ED)
Auto Transfer Delay Time When you enable Auto Transfer and the bypass detects a drive fault, the bypass controller will wait
for the length of time set in this parameter before it switches to bypass.
0.0 s
(0.0 - 300.0 s)
■ Z1-42: Soft Starter Selection
No.
(Hex.)
Name Description
Default
(Range)
Z1-42
(85EF)
Soft Starter Selection Selects the soft starter device type when you use it with a bypass. 0
(0 - 2)
Note:
When [Z1-42 = 1 or 2] to enable the soft starter, the bypass automatically disables welded contactor detection. Parameter Z1-55 [Welded
Contactor Detection] does will not have an effect.
0 : Not Installed – Contactor Only
Turns off the cabinet fans (if equipped) when in Bypass Mode.
1 : Installed – Coast To Stop
Cabinet fans (if equipped) will run in both Drive and Bypass Modes.
2 : Installed – Ramp To Stop
Allows "Soft Start" and "Soft Stop" operation when the unit has a soft-starter. Additional wiring and configuration is
necessary for the soft-starter.
This setting disables Energy Savings Mode.