LOGIC
MODULES
Variety
of Logic Functions
A variety of output logic functions are available to provide
increased system flexibility:
Dual-Preset:
Allows for the settings of both ON and OFF setpoints for each
channel.
Single-Preset/Fixed
One-Shot-Timer:
Upon reaching the ON setpoint, a fixed one-shot-timer (0. 1
-sec.) is activated.
Single-Preset/Variable
One-Shot-Timer:
Upon reaching the ON setpoint, a variable one-shottimer (0.1-6
sec.) is activated and the output stays ON during the preset time.
Single-Preset/Digital
Timer:
Upon reaching the ON setpoint the output turns ON and stays ON
for a duration set by the time thumbwheels. Time-base setting is
selectable by DIP switches from I ms to 100 ms per count.
ModZ:
Upon external signal, the position reference to the module is
reset to zero and the module starts counting up from this new
reference, switches output ON at the ON setpoint, and switches OFF
at the OFF setpoint. The cycle is repeated by resetting the
counter. One M1750PLS chassis can accommodate up to two ModZ
modules with independent reset signals. This function is
especially useful for glue applying applications.
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SYSTEM EXPANSION
Field-
Expandable to Match the Application
The eight- and twelve-channel chassis are standard, but any
desired number of logic modules can be inserted to meet the
requirements. Also several M1750-PLS chassis can be wired in
parallel to achieve a total of 48 channels for one position
transducer.
Variety
of Plug-in Output Relays
The M1750 PLS is designed to operate with electromechanical relays
(10 Amp) or open collector (100 mA. @ 30 V) or solidstate AC (3
A), DC (2 A) or AC/DC (0-35/0-5 A) output modules.
Electromechanical relays and solid-state modules, however, cannot
be mixed. The solid-state modules are optically isolated. All
these relays are plug-in type for easy on-site replacement. The
AC/DC relay has less than 0. 1 mA leakage to interface directly to
a programmable controller 110 VAC input card.
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