Status indications – ElmoMC SimplIQ Analog Servo Amplifiers-Piccolo Installation User Manual

Page 27

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Piccolo Installation Guide

Servo Control Operation

MAN-PICIG (Ver. 2.301)

www.elmomc.com

27

4.9. Status Indications

The following table lists the Piccolo amplifier status indications.

Function

Latch
Option

AOK

SO1

SO2

SO3

1

Amplifier OK
(AOK)

N/A

Low

Open collector

Open collector

Open collector

2

External disable

No

Low

Low

Open collector

Low

3

Current limit

No

Low

Open collector

Open collector

Low

4

Short

Yes

Open collector

Low

Open collector

Low

5

Over
temperature

Yes

Open collector

Open collector

Low

Low

6

Internal supplies
protection

No

Open collector

Low

Low

Open collector

7

Under voltage

No

Open collector

Low

Open collector

Open collector

8

Over voltage

No

Open collector

Open collector

Low

Open collector

9

Shunt*

No

Low

Open collector

Low

Open collector

10 Power up reset

No

Open collector

Open collector

Open collector

Open collector

11 Commutation

failure

Yes

Open collector

Low

Low

Low

* This indication can be used as a digital input for activating an external shunt regulator.

Table 9: Piccolo Status Indications

Notes:

Without latch mode:

The status indications are reset when the fault disappears.

With latch mode:

The Short, Over Temperature and Commutation Failure status indications are reset when
the enable signal is temporarily removed from the enable input.

Multiple faults:

Only the reading of the first fault is reliable. Additional faults add on to the status outputs
and the indication is therefore meaningless.

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