YASKAWA H6B1A002, Technical Reference

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5.14 Z: Bypass Parameters
440 YASKAWA SIEPYAIH6B01A HV600 AC Drive Bypass Technical Reference
Note:
When Z1-42 = 1 or 2 [Soft Starter Selection = Installed – Coast To Stop or Installed – Ramp To Stop] , the bypass will automatically disable
welded contactor detection.
This detection is active when you take the bypass out of bypass run mode or when you first apply power to the bypass
package.
The bypass will trigger FB18 - Welded Bypass Contactor Detected when it detects this condition. Cycle power to the
bypass package to clear this fault.
■
Z1-56: Test Mode
No.
(Hex.)
Name Description
Default
(Range)
Z1-56
(85FD)
RUN
Test Mode Sets the behavior of the drive input contactor K1 during Bypass Mode. 0
(0, 1)
0 : Drive Power Off during Bypass
In a 3-contactor bypass configuration, this setting, when the bypass system switches to Bypass Mode, contactor K1
opens and the HV600 drive disconnects from incoming power. When the bypass system switches to Drive mode,
contactor K1 closes and the HV600 drive can operate.
1 : Drive Power On during Bypass
Contactor K1 stays closed in Drive Mode and Bypass Mode. This setting will keep the status ring active or to
decrease the length of time that for the drive to start operating when the system switches from Bypass Mode to Drive
Mode.
■
Z1-60: Blackout Operation Select
No.
(Hex.)
Name Description
Default
(Range)
Z1-60
(8601)
Blackout Operation Select Sets bypass behavior when contactor voltage is less than Z1-19 [Blackout Voltage Level] . 1
(0 - 3)
0 : Fault
1 : Restart Delay with Speed Search
2 : Restart Delay from Zero Speed
3 : Disabled
■
Z1-61: Power Loss Restart Delay Time
No.
(Hex.)
Name Description
Default
(Range)
Z1-61
(8602)
Power Loss Restart Delay
Time Sets the time delay for restart. 10 s
(1 - 300 s)
■
Z1-70: Green Contactor Mode
No.
(Hex.)
Name Description
Default
(Range)
Z1-70
(860B)
Green Contactor Mode Green Contactor Mode opens the output and motor contactors when the bypass unit is idle. 0
(0, 1)
0 : Disabled
1 : Enabled