YASKAWA Z1000U Technical Manual page 322

B.15 Z: Bypass Parameters
No.
(Addr. Name
Hex)
Z1-33
(85E6) Loss of Load Drive
Output Current
Z1-34
(85E7) Loss of Load Drive
Time
Z1-35
(85E8) Loss of Load Bypass
Output Current
Z1-36
(85E9) Loss of Load Bypass
Time
Z1-37
(85EA) Set Time
Z1-38
(85EB) HOA Source Select
Z1-39
(85EC) Drive/Bypass Source
Select
Z1-40
(85ED) Auto Transfer Wait
Time
Z1-41 Hand Speed Reference
(85EE) Selection
Z1-42
Bypass Device Type
(85EF)
Bypass Unbalanced
Z1-50
Current Detection
(85F7)
Level
Z1-51 Bypass Unbalance Trip
(85F8) Time Detection Level
Z1-52
Bypass Phase Rotation
(85F9)
Z1-53
Load Verification Fault
(85FA)
Select
<5>
Z1-54
(85FB)
LCD Contrast Control LCD Contrast
<5>
322
LCD Display
The drive output current must be equal to or less than this value
to detect a loss of load.
Load Drive Curr
The conditions must be met for the length of time entered here
before detecting a loss of load while in Drive mode.
Load Drive Time
The motor current must be equal to or less than this value to detect
a loss of load.
Load Byp Cur
The conditions must be met for the length of time entered to this
parameter before detecting a loss of load while in Bypass mode.
Load Byp Time
Changes the LCD display to time setting to set the Real Time
Set Time
Clock.
0: Normal display
0: Normal display
1: Time Setting
1: Displays time and date setting mode
2: Reset Time
2: Reset time
HOA Select 0: Operator
0: Operator 1: Digital Inputs
1: Digital Inputs 2: Serial Communications
2: Ser Comm & Opt
Drv/Byp Select 0: Operator
0: Operator 1: Digital Inputs
1: Digital Inputs 2: Serial Communications
2: Ser Comm & Opt
If Auto Transfer is enabled and a drive fault is detected, the
Auto Xfer Wait T bypass controller will wait this length of time before switching
to bypass.
Hand Spd Ref Sel Selects the frequency reference source when in HAND Mode.
0: Parameter Z1-09 0: Parameter Z1-09
1: Analog 1: Analog
Selects the type of device that is used for the bypass.
0: Contactor
1: Soft Starter
Byp Device Type
0: Contactor
Note:
1: Soft Starter
Sets the current unbalance level between phases when operating
Byp Unbal Level
in Bypass Mode.
Sets the trip time for an unbalance condition operating in Bypass
Mode.
Byp Unbal Time
Note:
Determines the action to take when Bypass Mode phase rotation
Byp Phs Rotation
is incorrect
0: Disabled
0: Disabled
1: Alarm
1: Alarm
2: Fault
2: Fault
Enables and disables verification that the motor is running when
commanded to run.
Load Verify
0: Disabled
1: Enabled
Sets the contrast of the LCD operator display on the bypass.
Description
Setting 1 is required for bypasses with the soft-
starter option PW. This parameter is set to the
correct value at the factory. It should not require
adjustment.
Setting this parameter to 0.0 will disable unbalance
detection.
YASKAWA SIEP YAIZ1D 01C Z1000U HVAC MATRIX Drive Bypass Technical Manual
Values Page
Default: 0.0 A
Min.: 0.0 182
Max.: 999.9
Default: 1.0 s
Min.: 0.0 183
Max.: 300.0
Default: 0.0 A
Min.: 0.0 183
Max.: 999.9
Default: 1.0 s
Min.: 0.0 183
Max.: 300.0
Default: 0
183
Range: 0 to 2
Default: 0
183
Range: 0 to 2
Default: 0
183
Range: 0 to 2
Default: 0.0 s
Min.: 0.0 183
Max.: 300.0
Default: 0
184
Range: 0, 1
Default: 0
184
Range: 0, 1
Default: 25.0%
Min.: 5.0 184
Max.: 25.0
Default: 5.0 s
Min.: 0.0 184
Max.: 30.0
Default: 1
184
Range: 0 to 2
Default: 0
185
Range: 0, 1
Default: 3
186
Range: 1 to 5