Electronic offset, Reset-to-preset – AMETEK 1995L Micro-Set PLS User Manual

Page 14

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Chapter 3: Programming

Installation and Maintenance Manual

10

On units without Multiprogram, setpoint availability is dependent on the number of outputs enabled.

6 Outputs = 253 Setpoints Available

12 Outputs = 242 Setpoints Available

18 Outputs = 207 Setpoints Available

24 Outputs = 181 Setpoints Available

30 Outputs = 161 Setpoints Available

Refer to the Section 3.5: Selecting Number of Outputs.

3.13: Electronic Offset

The offset key is used to synchronize the digital display with the actual machine position. The Series

1995L PLS has full scale factor offset capabilities, and the offset is held in nonvolatile memory.

Programming the Electronic Offset

A)

Unit must be in the “Program” mode.

B)

Stop machine at a known location.

C)

Depress . After this sequence is

completed, the display will change to the position entered. The display and outputs are now

synchronized with the actual machine position.

OFFSET

(Actual Machine Position)

ENT

-

-

3.14: Reset-to-Preset

Remote Reset-to-Preset Value - This option allows the position of the PLS to be reset to a keypad

selected value; this value would be based on an input from a remote contact or proximity switch

mounted at a known location on the machine. Typical uses are to synchronize outputs with the leading

edge of products moving through a machine.

The reset-to-preset function of the 1995L requires an isolated contact closure. The isolated contact is

used as an input to the 1995L PLS; which upon closure, will reset the unit to its preprogrammed reset

value. If an auxiliary contact is available, it can be wired to the 1995L PLS to perform this function. If

an auxiliary contact is not available, a reset input relay (Part No. SD0395100) can be purchased and

wired to a 110V AC circuit to provide this output.

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