NSD NCV-20NBNVP, Технические характеристики и инструкция по эксплуатации

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1. SUMMARY
The NCV-20 converter can be combined with a single-turn type ABSOCODER “VRE sensor “ to convert the
detected absolute position data to binary or gray binary values for output.
Moreover, a current position setting function permits a position data to be changed to any desired values.
1-1. Features
(1) High reliability
An absolute position detection format ensures accurate position detection even if a power interruption or
unexpected noise condition occurs. An origin returning operation is not required.
(2) Superior durability
NSD's original ABSOCODER is used as the position sensor which features a no-contact construction for
excellent durability. This sensor offers problem-free operation, even in environments where it is exposed to
vibration, impact shocks, extreme temperatures, oil, and dust.
(3) Compact design
The unit's outside dimensions (39(W) x 155(H) x 93(D)) were miniaturized, and the shape of case is a
bookshelf type. DIN rail mounting is also possible.
(4) Current position setting function
The position data can be changed as desired by using the control panel's rotary switch.
The current position setting is also quick and easy at installation.
(5) A full array of position data reading formats
a) Latch pulse format
Position data reading occurs by synchronizing with the latch pulse signal output from the converter. A
position data update cycle (0.2ms, 0.4ms, 12.8ms, 25.6ms, 51.2ms) which is suitable for the host
controller's reading speed can be selected.
b) HOLD signal format
A HOLD signal is input to the converter to stop position data output updates, with the position data then
being read.
This desired HOLD signal format can be selected from two types:
- A transparent format in which data reading occurs while the HOLD signal is ON.
- A PC synchro format in which position data updates occurs at the HOLD signal's leading or trailing
edge.
(6) Error detection function
A sensor disconnected error (SE) is indicated by a monitor “LED”. A status output is also provided, enabling
reading to a host controller (PLC, etc.).
(7) Compliance with UL and CE standards
The NCV-20 Series complies with both UL (UL508) and CE (EMC Directive) standards, and therefore
presents no problems when used in equipment which is to be exported abroad.
(8) Problem-free backward compatibility
The NCV-20 Series is fully compatible with the earlier VE-2B Series, and can easily replace a VE-2B without
wiring changes.
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