User's Manual Part 7

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ProScale M150, M250 and all products with General Purpose LCD Digital Displays 36 of 36

Jumpers – Surface Mount Display

Although the ProScale display uses a keyboard-programming mode to enable and

configure features in the unit, several selection jumpers are located on the circuit board

for additional system configuration.

User configurable jumpers consist of three pins and a ‘shorting block’.

The center of these pins is ‘Common’. One end pin is labeled ‘A’ and the other end pin is

labeled ‘B’.

Surface Mount Display

Circuit Board

JP1 FOR FACTORY USE ONLY

JP2 Absolute/Incremental Encoder Selection

The General Purpose Digital Display supports both Incremental and Absolute style

measuring systems (See Section 1:

ProScale Terminology

). To configure the display for

use with absolute (

ABS

) type encoders (default), install the shorting jumper in position A.

For incremental type encoders, install the shorting jumper in position B.

(ProScale Model 150 & 250 are Absolute systems. Other Accurate Technology products

such as ProCaliper, ProPanel, Measurement Kits, and ProStop are Incremental systems)

NOTE: This functionality is not related to the ABS / INC measurement modes described

in Section 4:

Auxiliary Keypad

JP3 Programming Enable/Disable

Entry to the programming mode of the ProScale display can be enabled or disabled

based on this jumper setting. To enable keyboard programming (default), install the

shorting jumper in position A.

To disable keyboard programming, install the shorting

jumper in position B.

When programming mode is disabled, the user cannot access the

programming functions via the

Mode + 0

keys as described in the Section 4:

Programming

. This provides the user with a method of configuring the display with

specific parameters and prevents unauthorized configuration changes.

JP4 Display Power

This jumper configures the Digital Display to operate on either Battery or 24VDC.

This jumper will be set at the factory based on the type of display you have ordered.

JP5 FOR FACTORY USE ONLY

JP1

JP2

JP3

JP4

JP5

Summary of content (6 pages)

PAGE 1
Jumpers – Surface Mount Display Although the ProScale display uses a keyboard-programming mode to enable and configure features in the unit, several selection jumpers are located on the circuit board for additional system configuration. User configurable jumpers consist of three pins and a ‘shorting block’. The center of these pins is ‘Common’. One end pin is labeled ‘A’ and the other end pin is labeled ‘B’.
PAGE 2
Jumpers – Panel Mount Display Although the ProScale display uses a keyboard-programming mode to enable and configure features in the unit, several selection jumpers are located on the circuit board for additional system configuration. User configurable jumpers consist of three pins and a ‘shorting block’. The center of these pins is ‘Common’. One end pin is labeled ‘A’ and the other end pin is labeled ‘B’.
PAGE 3
Programming Summary Programming Parameter Pr0 Pr1 Pr2 Pr3 Pr4 Pr5 Pr6 Pr7 Pr8 Pr9 Pr10 Pr11 Pr12 Pr13 Pr14 Pr15 Pr16 Pr17 Pr18 Pr19 Pr20 Pr21 Pr22 Pr23 Pr24 Pr25 Function Encoder Direction Segment Offset High Speed ReadHead Zero, Offset Entry Display Resolution mm or cm Fractions, mm, in Scaling Auto off Auxiliary Keypad Offset Addition Offset Addition 1 Offset Addition 2 Offset Addition 3 Output Mode Output Polarity Lower Limit Upper Limit Drift Tolerance Auto Monitor ON Auto Monitor OFF Auto Monitor Dis
PAGE 4
Jumpers and Key Press Summary Circuit Board Jumpers JUMPER SURFACE MOUNT DISPLAY JP1 Internal Use Only JP2 Absolute (ABS) or Incremental System JP3 Programming Enable/Disable JP4 Display Power – Battery or 24VDC JP5 Internal Use Only PANEL MOUNT DISPLAY Power Selection (set same as JP2) Power Selection (set same as JP1) Programming Enable/Disable Internal Use Only N/A Key Press Functions: ON/OFF (Press & Hold) + MODE (Momentarily) Enable/Disable LOCK mode (‘0’, ‘+’ & ‘-‘ keys).
PAGE 5
SECTION 5 MISCELLANEOUS Frequently Asked Questions What does “no Enc” mean? If the readhead is off the scale, or the readhead cable is unplugged from the digital display, an “no Enc” will appear on the display. To clear error: 1. Be sure the readhead is on the scale. 2. Unplug the connector from the display for one second. 3. Reconnect the readhead cable to the digital display. The battery clips seem to be very loose. Is this normal? Yes.
PAGE 6
Abbe Error Abbe error is a condition that may not be visible to the human eye, but will affect linear measurements. Be sure to take precautions when installing ProScale in order to eliminate the possibility for Abbe error. Abbe error refers to a linear error caused by the combination of an angular error and a dimensional offset between the sample and the measuring system. It is important to understand that the information the encoder is providing is only the position of the readhead on the scale.