YASKAWA HV600 Technical Reference page 439

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Z1-53: Load Verify Detection
No.
Name
(Hex.)
Z1-53 Load Verify Detection
(85FA)
0 : Disabled
1 : Enabled
When this function is enabled and the bypass detects a loss of output current, for example an open external motor
disconnect or a zero frequency reference command for longer than 10 seconds, it will trigger a Load Lost fault and the
bypass will coast to stop, and digital outputs programmed to Damper Act Out [Z2-2x = 20] will open.
The bypass disables the Load Lost fault during emergency override operation.
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Z1-55: Welded Contactor Detection
No.
Name
(Hex.)
Z1-55 Welded Contactor Detection Enables and disables detection of K3 "welded contactor" condition.
(85FC)
0 : Disabled
1 : Enabled
YASKAWA SIEPYAIH6B01A HV600 AC Drive Bypass Technical Reference
Enables and disables verification that the motor is running when commanded to run.
Run (Auto)
Input
Run Interlock
Input (BAS)
Output
Frequency
Output
Current
Damper Actuator
Output
(Z2-2 =20)
Load Lost
Fault
Figure 5.104 Motor Disconnected at Start
Run (Auto)
Input
Run Interlock
Input (BAS)
Output
Frequency
Output
Current
Damper Actuator
Output
(Z2-2 =20)
Load Lost
Fault
Figure 5.105 Motor Disconnected during Run
Description
10%
10 seconds
5%
10 seconds
Disconnect
Opens
Description
5.14 Z: Bypass Parameters
Default
(Range)
0
(0, 1)
Default
(Range)
0
(0, 1)
5
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