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7. Troubleshooting – Frequently Asked Questions – FAQ

7.1. FAQ: Projecting

7.1.1.

Where do I get an encoder manual?

If stated in the order, the manual will come as pdf-file on data carrier (CD). Make sure that the manual applies

to your encoder using the table at the beginning of the manual. You will find the encoder type on the product

label (for example GXMMW or GCAMW).

Should your encoder not be on the list please contact Baumer.

7.1.2.

Where do I get the applicable GSDML file?

If included in the order, the GSDML file required for projecting is attached to the encoder on data carrier

(CD). The GSDML file is also available in the Internet under www.baumer.com.

To find out the GSDML file that is applicable for your encoder please use the table at the beginning of the

manual. You will find the encoder type on the product label (for example GXMMW or GCAMW).

Should your encoder not be on the list please contact Baumer.

7.2. FAQ: Operation

7.2.1.

What is the significance of the LED provided at the bus cover?

The rear bus cover provides an integrated multi-colour LED indicating the encoder operating status. In

particular upon commissioning and in case of error it provides first information on the system status. For

details on the respective status please refer to chapter 6.2.

Two other, green LEDs are provided near the cable glands for PROFINET connection. These activity LEDs

signal the bus activity, i.e. the data communication on each of the two Ethernet ports.

7.2.2.

How to alter the resolution?

The encoder resolution in steps per turn („Measuring units per turn") is programmed in projecting by

corresponding parameter parameterization in the PROFINET device project.

Usually this is performed by the control's projecting software (for example SIEMENS® Step7®) by aid of a

PC.

The encoder resolution is programmable in individual steps between the maximum limit (encoder-specific, for

example 8192 at GXMMW) and the minimum limit of 1 step/turn.

Important: The encoder's total measuring range ("total measuring range (units,"hi/lo") must be aligned w

the programmed resolution. If not, this will result in parameterization errors signalled by the LED in the bus

cover flashing red. The maximum total measuring range is calculated by multiplying the resolution (steps per

turn) by the encoder's maximum number of turns. Standard resolution is 16 bit (65536 turns). Encoders

featuring a 18 bit singleturn resolution (e.g. Multivo Plus) are capable of a 13 bit resolution (8192 turns).

Manual_PROFINET_EN.doc

17.10.11

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