Supplemental explanation 4 – Yaskawa MP920 Motion Module User Manual

Page 228

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5 SVA Module Specifications and Handling

5.4.3 Motion Monitoring Parameters

5-86

Supplemental Explanation 4

1. The following example shows when these parameters are used for servo drive status.

They are general-purpose DIs, and they can also be used in other applications.

* Logical value, i.e., OFF when the operation is executed.

2. When bit 7 (motion command code selection) of fixed parameter No. 14 is set to 1

(“Used”) and Motion Command Code Enable/Disable (OB

008) is set to 1 (“Valid”),

indicates the number of reference units. Otherwise, indicates the number of pulses.

3. The DI latch mode latches the current position in storage registers on the rising edge of

an external signal. Either a special discrete input signal called the DI input or the pulse
C input can be selected as the latch signal. The latch signal is selected in fixed parameter
13: DI Latch Detection.

Table 5.8 SVA-01A (4-axis) Module

Name

Connected to a VS-866

Connected to a SERVOPACK

Bit 0 (DI0)

Alarm (ALM)

Servo alarm (ALM)

Bit 1 (DI1)

Preparations completed (RDYX)

Servo ready (S-RDY)

Bit 2 (DI2)

Operating (RUNX)

Brake input (BRK)

Bit 3

Not used.

Broken PG wire

Bit 4 (DI3)

Positive overtravel signal

Positive overtravel signal (OTF)

Bit 5 (DI4)

Negative overtravel signal

Negative overtravel signal (OTR)

Bit 6 (DI5)

Deceleration limit switch signal

Deceleration limit switch signal (DEC)

Bit 7 (DI6)

ZERO signal

Bit 8 (DI7)

External latch signal

External latch signal (EXT)

Bit 9 (DI8)

Reserved.

Reserved. RIn

Bit 10 (DI9)