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Section B: Application Parameters
B6 Reference Hold
B5-13
PID Feedback Loss Detection Level
Setting Range:
Factory Default:
This parameter sets the level at which a loss of PID feedback is detected. The PID feedback must be at
or below this level for the time defined by B5-14 before a loss of feedback can be detected. A setting
of 100% represents 100% of the feedback signal.
B5-14
PID Output Gain
Setting Range:
Factory Default:
This parameter sets the gain of the PID output. The PID output can be monitored by parameter U1-37
PID Output Monitor. Refer to PID Block Diagram Figure 9.
B6
Reference Hold
The reference hold or dwell function is used to temporarily hold the output frequency at a set refer-
ence, for a set time, and then start it again. This function can be used when driving a permanent magnet
motor, or a motor with a heavy starting load. This pause in acceleration allows the magnets in a perma-
nent magnet motor to synchronize with the stator field of the motor, thus reducing traditionally high
starting current.
B6-01 Dwell Frequency Reference at Start
Setting Range:
Factory Default:
Sets the dwell frequency reference during acceleration in units of 0.1Hz.
B6-02 Dwell Time at Start
Setting Range:
Factory Default:
Sets the amount of time that the frequency reference "dwells" during acceleration in units of 0.1s.
B6-03 Dwell Frequency Reference at Stop
Setting Range:
Factory Default:
Sets the dwell frequency reference during deceleration in units of 0.1Hz.
26
<1110>
0 to 100%
1%
<1110>
0.0 to 25.0
1.0
0.0 to 400.0Hz
0.0Hz
0.0 to 10.0s
0.0s
0.0 to 400.0Hz
0.0Hz
Fb los Det Lvl
Output Gain
Dwell Ref @Start
Dwell Time@Start
Dwell Ref @Stop
VS-616G5 Programming Manual
Open Loop
Flux
V/f
V/f w/PG
Vector
Vector
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
A
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