Table of Contents
Advertisement
Output Phase Loss Detection
Program Protection Phase Loss
This parameter Enables/Disables the monitoring of each phase
of the 3-phase output signal (U, V, or W) of the ASD. If either line
is missing, inactive, or not of the specified level for one second or
more, the ASD incurs a trip.
Note: Autotune checks for phase failures regardless of this
setting.
Settings:
0 — (Disabled) No Detection
1 — (Enabled) First Running Only at Start Up After Power On
and Retry
2 — (Enabled) Running Only at Start Up and Retry
3 — (Enabled) During Run
4 — (Enabled) At Starting and During Run
5 — (Enabled) Auto-Restart When Cut on Drive Output
Overload Reduction Starting Frequency
Program Protection Overload
This parameter is primarily used with V/f motors. It is used to
reduce the starting frequency at which the Overload Reduction
function begins and is useful during extremely low-speed motor
operation.
During very low-speed operation the cooling efficiency of the
motor decreases. Lowering the start frequency of the Overload
Reduction function aides in minimizing the generated heat and
precluding an Overload trip.
This function is useful in loads such as fans, pumps, and blow-
ers that have the square reduction torque characteristic.
The default overload time is 300 seconds at 150% ASD output;
this time may vary as a function of the magnitude of the overload.
Input Phase Loss Detection
Program Protection Phase Loss
This parameter enables the 3-phase input power phase loss
detection feature. A loss of either input phase (R, S, or T) results
in a trip.
Settings:
0 — Disabled
1 — Enabled
184
–
F605
Direct Access Parameter Information
Q9 Plus ASD Install/Op Manual
F609
Direct Access Number —
Parameter Type — Selection List
Factory Default — No Detection
Changeable During Run — No
Direct Access Number —
Parameter Type — Numerical
Factory Default — (ASD-Depen-
dent)
Changeable During Run — Yes
Minimum — 0.00
Maximum — (ASD-Dependent)
Units — Hz
Direct Access Number —
Parameter Type — Selection List
Factory Default — Enabled
Changeable During Run — No
https://www.toshiba.com/tic/
F605
F606
F608
Advertisement
Table of Contents
