IAI America PCON-CY - Manual (Page 88)

78
5. Operation Using I/O Signals
5.4 Power-saving Modes at Standby Positions
One general characteristic of pulse motors is that their holding current in standstill state is greater than AC servo motors.
For this reason, in situations where the actuator remains standstill for a long time at a standby position, this controller provides
several modes to reduce power consumption in such standstill state as part of the controller’s energy-saving function.
Use these modes after confirming that they will not cause problems in any part of the system.
The respective modes can be used for effective power-saving in the applicable situations specified below. Each mode
provides different power-saving benefits, and is suitable for a different standstill condition.
The actuator is standing by while the servo is on after power on
In this case, you can select full servo control by Parameter No. 53 (Default standstill mode). Automatic servo-off cannot be
selected. If this parameter is set to “1,” “2” or “3” by mistake, the setting will be ignored. (The setting in the “Standstill mode”
field of the position table is ignored.)
The actuator is standing by upon completion of positioning to the target position set in the “Position” field under each
position number
In this case, you can select one of two modes depending on the value set in the “Standstill mode” field of the position table.
(The setting of Parameter No. 53 is ignored.)
[1] Full servo control
[2] Automatic servo-off
Meaning of the setting in the “Standstill mode” field of the position table and setting of Parameter No. 53:
Setting
All power-saving modes are disabled. (The actuator is completely stopped.) 0
Automatic servo-off mode. The delay time is defined by Parameter No. 36. 1
Automatic servo-off mode. The delay time is defined by Parameter No. 37. 2
Automatic servo-off mode. The delay time is defined by Parameter No. 38. 3
Full servo control mode 4