ElmoMC SimplIQ Digital Servo Drives-Bell Command Reference - Manual (Page 194)

YA[N] - Auxiliary Position Sensor Parameters
Purpose:
Defines the behavior and direction of the auxiliary position sensor signals.
The auxiliary encoder pins are multi-role. Their function varies by YA[4]. They may be:
• Inputs for the pulses of the external position incremental sensor or PWM source
signals. This mode is used to enable the drive to follow any source of encoder or
PWM signals.
• Outputs, repeating the pulses of the main position incremental or analog sensors.
This option is only available for digital incremental encoder feedback.
• Output for PWM signal that reflects the current command. The PWM frame will
be 2 TT [1], and the duty will vary between 0% to 100% when the current
command varies from – PL [1] to PL[1]. This mode is useful when several drives
need to synchronize their current output.
Index Description
2 Auxiliary encoder bits per rev (rotary) or per meter (linear)
3 Auxiliary encoder type – 0: Rotary , 1: Linear
4 Auxiliary encoder type:
0: Auxiliary encoder entry used as input for external pulse-and-direction signals
1: Not used
2: Auxiliary encoder entry used as input for external quadrature
incremental encoder signals
3: Reserved
4: Reserved
5: 50% duty cycle command format. 0% and 100% duty cycle is interpreted as
either maximum positive or negative PWM command depending
upon the YA[5] setting.
6: 100% duty cycle command format. Depending upon command
polarity signal level, 100% duty cycle is interpreted as either maximum
negative or positive PWM command.
7: Auxiliary encoder port used as generator of the PWM signals
5
Auxiliary count direction:
0: Count forward for encoders or P&D inputs.
For PWM inputs: forward direction, increasing the duty cycle causes
an increase of the controller output command.
1: Count in reverse direction for encoders or P&D inputs.
For PWM inputs: reverse direction, increasing duty cycle causes a decrease of the
controller output command. YA[5] has no effect if YA[4] specifies that the auxiliary
encoder pins repeat outputs (YA[4]=4).
Table 3-48: XP[N] Entries and Values
SimplIQ for Steppers Command Reference Manual Alphabetical Listing
MAN-STECR (Ver. 1.1)
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