NSD VARILIMIT VS-12PB User Manual

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1. General
The VARILIMIT VS-12PB is a positioning Controller unit which is used together with NSD’s unique ABSOCODER
sensor to achieve high-precision positioning control.
Applications: Transport systems, press machines, assemble equipment, and packaging equipment, etc.
1-1. Features
Some of the main VS-12PB features are described below.
(1) Absolute Position Detection
Rotational or linear positions are monitored by absolute position detection format. Even when a power outage,
etc., occurs, the correct address of the ABSOCODER sensor’s current position will be instantly detected when
power is restored.
(2) Limit Switch Function
Limit switch outputs are possible at up to 8 points as positioning is executed toward the target position.
(3) Learning Function Enable Highly Accurate Positioning
When a discrepancy exists between the target position and the actual STOP position after a positioning
operation, the Learning function will automatically make the necessary calculations to eliminate this discrepancy
at the next positioning operation.
Furthermore, if a positioning operation ends without entering the “In-Position” zone, the positioning operation will
automatically be executed again.
(4) Self-Diagnosis Function
This function detects severed / disconnected sensor cables, checks the control outputs, and monitors the
braking count.
(5) Communication With Host Controller
Setting data can be down-loaded from and up-loaded to a Host Controller. Moreover, up to 32 VS-12PB units
can be controlled by a single Host Controller.
(6) Fine Positioning (Inching Function)
Extremely fine, slow-speed positioning control is enables by short-period On/OFF switching of the positioning
signals.
(7) Unidirectinal Positioning Function
Unidirectional positioning minimizes positioning errors caused by backlash.

NSD VARILIMIT VS-12PB Specifications

General

Brand	NSD
Model	VARILIMIT VS-12PB
Category	Switch
Language	English