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Sigma II User's Manual
alone. See 5.3.4 Output Circuit Signal Allocation.
The following parameter is used to set the timing for /NEAR signal output.
Parameter
Pn504
NEAR Signal Width
*The number of input pulses defined using the electronic gear function.
Generally set the near signal width higher than the positioning completed width.
Also see 5.5.3 Using the Positioning Completed Output Signal.
Speed
Error pulse
/NEAR
/COIN
5.5.9
Handling Power Loss
The following parameter is used to specify whether to generate an alarm when
power loss occurs.
Parameter
Pn509
Momentary Hold Time
The servo amplifier turns the servomotor OFF if it detects a voltage drop in the
power supply. The default setting of 20ms means that servomotor operation will
continue if power is lost for less than 20ms.
In the following instances, however, either a servo alarm is generated or control is
lost (equivalent to normal power OFF operation) regardless of the parameter setting.
•
When an insufficient voltage alarm (A.41) occurs during power loss with a large
servomotor load.
•
Loss of the control power supply is equivalent to normal power OFF operation,
thus control is lost.
Signal
Setting Range: 1 to 250
Default Setting: 7
Reference
Pn504
0
Signal
Setting Range: 20 to 1000
Default Setting: 20
Chapter 5: Parameter Settings and Functions
Setting
(reference unit*)
Servomotor
Pn500
Setting
(ms)
5-80
Description
Position Control
Description
Speed/Torque Control,
Position Control
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