Yaskawa AC Drive-P1000 Industrial Fan User Manual
Page 221
Output frequency
time
FWD Run command
REV Run command
During Reverse
OFF
ON
Figure 5.55 Reverse Direction Output Example Time Chart
Setting 1B: During Baseblock (N.C.)
The output opens to indicate that the drive is in a baseblock state. While Baseblock is executed, output transistors do not switch
and no main circuit voltage is output.
Status
Description
Open
Baseblock is being executed.
Closed
Drive is not in a baseblock state.
Setting 1E: Restart Enabled
An output set for “Restart enabled” closes when the drive attempts to restart after a fault has occurred.
The fault restart function allows the drive to automatically clear a fault. The terminal set to 1E will close after the fault is
cleared and the drive has attempted to restart. If the drive cannot successfully restart within the number of attempts permitted
by L5-01, a fault will be triggered and the terminal set to 1E will open.
Refer to L5: Fault Restart on page 253
automatic restart.
Setting 1F: Motor Overload Alarm (oL1)
The output closes when the motor overload level estimated by the oL1 fault detection exceeds 90% of the oL1 detection level.
Refer to L1-01: Motor Overload Protection Selection on page 233
Setting 20: Drive Overheat Pre-Alarm (oH)
The output closes when the drive heatsink temperature reaches the level specified by parameter L8-02.
Overheat Alarm Level on page 257
for details on drive overheat detection.
Setting 22: Mechanical Weakening Detection
The output closes when a mechanical weakening situation is detected.
Setting 2F: Maintenance Period
The output closes when the cooling fan, DC bus capacitors, or DC bus pre-charge relay may require maintenance as determined
by the estimated performance life span of those components. Components performance life is displayed as a percentage on
the digital operator screen.
Refer to Periodic Maintenance on page 343
.
Setting 37: During Frequency Output
The output closes when the drive is outputting a frequency.
Status
Description
Open
Drive is stopped or one of the following functions is being performed: baseblock, DC Injection Braking, Short Circuit Braking.
Closed
Drive is outputting frequency.
5.7 H: Terminal Functions
YASKAWA SIEP YAIP1U 01B AC Drive - P1000 Technical Manual
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Parameter Details