B.2 Parameter Table
394 YASKAWA TM.V1000.01 V1000 Drive Installation & Start-Up Manual (Preliminary 01-19-07)
L8-02
Overheat Alarm
Level
When the heatsink temperature exceeds the
value set in this parameter, an Overheat Alarm
(OH) will occur. Requires that one of the
multi-function digital output terminals is set
(H2- = 20).
50 to
130
<12> AAA 4AE —
L8-03
Overheat Pre-Alarm
Operation Selection
Sets drive action when an overheat alarm OH
is detected (requires that one of the
multi-function digital output set
(H2- = 20).
0: Ramp to Stop. Drive decelerates as specified
in C1-02 (Decel Time 1).
1: Coast to Stop.
2: Fast-stop. Drive decelerates as specified in
C1-09 (Fast-stop Time).
3: Alarm Only. Drive continues running, but
displays an alarm.
4: Derated Operation. Drive continues to run,
but derates the frequency reference as specified
in L8-19.
Settings 0 through 2 are considered fault
detection, and trigger a fault relay if the
heatsink becomes too hot.
0 to 4 3 A A A 4AF —
L8-05
Input Phase Loss
Protection Selection
Selects the detection of input current phase
loss, power supply voltage imbalance, or main
circuit electrolytic capacitor deterioration.
0: Disabled
1: Enabled
0,1 0 A A A 4B1 —
L8-07
Output Phase Loss
Protection
0: Disabled
1: Enabled (triggered when a single phase is
lost).
2: Enabled (detection after two phases are
lost).
Output phase loss is detected when operating
with less than 5% of the drive rated current.
Detection can mistakenly occur if the motor is
too small relative to the drive capacity rating
(this parameter should be disabled in such
cases).
0 to 2
0
<14>
AAA 4B3 —
L8-09
Output Ground Fault
Detection Selection
Enables and disables the drive's output ground
fault detection.
0: Disabled
1: Enabled
0,1
<12> AAA 4B5 —
No. Name Description Range Def.
Control
Mode
Addr.
Hex
Pg.
V/
f
O
L
V
P
M
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