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5.14 Z: Bypass Parameters
n
Z1-54: LCD Contrast Control
Sets the contrast of the LCD operator display on the bypass.
Note:
Parameter available in bypass controller software versions VST800400 and later.
No.
Z1-54
n
Z1-55: Welded K3 Contactor Fault Select
Enables and disables monitoring of bypass contactor K3 for a "welded contactor" condition.
This detection is active when the bypass is taken out of bypass run mode or when power is first applied to the bypass package.
The bypass will display an "FB18 - K3 Welded" fault upon detection of the condition. Cycle power to the bypass package to
clear this fault.
Note:
Parameter available in bypass controller software versions VST800400 and later.
No.
Z1-55
Setting 0: Disabled
Setting 1: Enabled
n
Z1-60: Black Out Selection
Determines the bypass behavior when contactor voltage drops below Z1-29 setting.
Note:
Parameter available in bypass controller software versions VST800401 and later.
No.
Z1-60
Setting 0: Fault
Setting 1: Restart
n
Z1-61: Restart Delay
Sets the time delay for restart.
Note:
Parameter available in bypass controller software versions VST800401 and later.
No.
Z1-61
186
Run (Auto)
Input
Run Interlock
Input (BAS)
Output
Frequency
Output
Current
Damper Actuator
Output
(Z2-2 =20)
Load Lost
Fault
Figure 5.60 Motor Disconnected During Run
Name
LCD Contrast Control
Name
Welded K3 Contactor Fault Select
Name
Black Out Selection
Name
Restart Delay
Motor Disconnected During Run
5%
10 seconds
Disconnect
Opens
YASKAWA SIEP YAIZ1D 01C Z1000U HVAC MATRIX Drive Bypass Technical Manual
Setting Range
1 to 5
Setting Range
0, 1
Setting Range
0, 1
Setting Range
1 to 300 s
Default
3
Default
0
Default
0
Default
10 s
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