No. Name
Description
Range
Min.
Max.
09 REGTM
* REGERATION BRAKE TIME
Set the allowable maximum time of regenerative brake action.
The brake resistor is optional.
The converter voltage of servo amplifier is increased in case of
regeneration in which the energy is transferred reverse to the servo
amplifier from the motor. The regeneration energy is discharged quickly
through
the
regenerative
brake
resistor
for
the
safety
of
power
semiconductor device, when the converter voltage is higher than the
reference voltage of regeneration brake.
If the regeneration brake action is longer than the setting value, then
the motion stops and error message ("OVER REG. ALARM ") is
displayed. When this alarm has occurred, it may soften the acc./dec.
time or install the additional regenerative brake resistor.
[ Regenerative brake time ]
The regeneration conditions are appeared in the following cases.
1. The load moves vertically.
2. The deceleration time is too short with an excessive speed.
3. The load inertia is too big compared with the motor inertia.
Note 1: Do not install the regenerative brake resistor on or near
combustibles. Otherwise, a fire may cause.
2. If the input power supply is higher than the normal voltage,
then the alarm may occur frequently. Install the
step down
transformer.
0
0.25 sec.
1
0.50 sec.
2
0.75 sec.
3
1.00 sec.
0
3
10 BRKTM
* BRAKE ON DELAY TIME
Set a time delay between electromagnetic brake signal output on and
servo on. The unit is msec.
When use a servo motor with electromagnetic brake which is designed
to prevent from a load drop on a vertical shaft or which ensure double
safety at an emergency stop, the brake output is on at servo on state.
The mechanical movement is occurred due to free-run when the setting
value is too higher than the optimal value. But, be sure that the motor
shaft is damaged due to locking when the setting value is too lower
than the optimal value.
10
500
11
OLTIM
* OVER LOAD TIME
Used to set the allowable time of over load. The unit is 0.1sec.
For a interval of setting value, if the required torque is higher than the
torque limit value set in servo parameter Svpar-07 "TRQLT" then the
motion stops and error message ("OVER LOAD ALARM ") is displayed.
When this alarm has occurred, check the machine and parameters
carefully and restart. If everything is good, it is recommended to
replace by the higher capacity servo motor.
Notice that the servo amplifier may be damaged permanently due to the
setting value more than factory setting value.
5
30
Содержание Tango-B series
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