YASKAWA HV600 Technical Reference page 289

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3A: Drive Overheat Alarm
Setting Value Function
3A Drive Overheat Alarm
The drive will decrease the frequency reference as specified by L8-19 [Freq Reduction @ oH Pre-Alarm]. Carrier
frequency reduction is active when L8-97 = 1 [Carrier Freq Reduce during OH = Enabled].
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3D: During Speed Search
Setting Value Function
3D During Speed Search
Note:
Refer to "b3: Speed Search" for more information.
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42: Pressure Reached
Setting Value Function
42 Pressure Reached
The drive uses the Pressure Feedback and Y4-36 [Pressure Reached Exit Conditions] to Y4-40 [Pressure Reached
Detection Sel] for the activation and deactivation conditions.
When the b5-09 [PID Output Level Selection] setting changes, the MFDO terminal operation also changes.
• When b5-09 = 0 [Normal Output (Direct Acting)]
The function activates when the feedback is at or above the setpoint for the time set in Y4-38 [Pressure Reached On
Delay Time].
• When b5-09 = 1 [Reverse Output (Reverse Acting)]
The function activates when the feedback is at or below the setpoint for the time set in Y4-38.
When this function activates, it will use Y4-36, Y4-37 [Pressure Reached Hysteresis Lvl], and Y4-39 [Pressure
Reached Off Delay Time] to deactivate.
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4C: During Fast Stop
Setting Value Function
4C During Fast Stop
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4D: oH Pre-Alarm Reduction Limit
Setting Value Function
4D oH Pre-Alarm Reduction
Limit
Note:
Refer to "L8-03: Overheat Pre-Alarm Selection" for more information.
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51: Sequence Timer 1
Setting Value Function
51 Sequence Timer 1
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52: Sequence Timer 2
Setting Value Function
52 Sequence Timer 2
YASKAWA SIEPYAIH6B01A HV600 AC Drive Bypass Technical Reference
The terminal activates when the drive heatsink temperature is at the L8-02 [Overheat Alarm Level] setting while L8-03 = 4
[Overheat Pre-Alarm Selection = Operate at Reduced Speed (L8-19)] and the drive is running.
The terminal activates when the drive is doing speed search.
The terminal activates when the drive is at the Pressure Setpoint.
The terminal activates when the fast stop is in operation.
The terminal activates when L8-03 = 4 [Overheat Pre-Alarm Selection = Operate at Reduced Speed (L8-19)] and oH [Heatsink
Overheat] does not clear after the drive decreases the frequency for 10 cycles.
The terminal activates when Sequence Timer 1 is active.
The terminal activates when Sequence Timer 2 is active.
5.7 H: Terminal Functions
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