E1 Series Servo Drive User Manual Basic Function Settings Before Operation
6-30 HIWIN MIKROSYSTEM CORP.
6.12.4 Encoder delay time
When the control power for the servo drive is turned on, the servo drive detects if the encoder is ready or
not. If the power-on time of the encoder (or external encoder) is too long, the servo motor may not be
successfully enabled due to failure in detecting electrical angle. In this case, users can set encoder delay
time by Pt52D. Encoder delay time may need to be set while using encoder other than Renishaw optical
scale.
Note:
(1) When E1 series AC servo motor is used, Pt52D must be higher than the default value. Otherwise, the motor
may not be successfully enabled.
(2) For full-closed loop control, check the power-on time of the external encoder. If the power-on time is larger
than the default value of Pt52D, Pt52D must be increased.
Table6.12.4.1
Parameter Pt52D Range 10~2000
Position mode, velocity mode
and torque mode
Default 500 Effective After power on Unit 1 ms
Description
Set encoder delay time.
6.13 Setting regenerative resistor
Regenerative resistor is used to absorb the regenerative energy generated by servo motor when it
decelerates. When external regenerative resistor is connected, Pt600 (Regenerative resistor capacity)
and Pt603 (Resistance of regenerative resistor) must be set.
When external regenerative resistor is connected, Pt600 and Pt603 must be correctly set. If not, AL.320
(Regenerative energy overflow) may not be detected. And this may cause damage to the external regenerative
resistor, injury or fire.
Ensure the capacity of regenerative resistor is suitable. If not, this may cause damage to the external
regenerative resistor, injury or fire.
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