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A - 7
Appendices
NX-series Position Interface Units User’s Manual (W524)
A-1 D
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Input U
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NX-EC0122
Unit name
Incremental Encoder Input Units
Model
NX-EC0122
Number of channels
1 channel
Type of external con-
nections
Screwless clamping terminal block
(16 terminals)
I/O refreshing
method
*1
Free-Run refreshing, synchronous I/O refreshing, or task period prioritized refreshing
Indicators
Input signals
Counter: Phases A, B, and Z
External Inputs: 3
Input form
Voltage input (24 V)
Counting unit
Pulses
Pulse input method
Phase differential pulse (multiplication x2/4), pulse + direction inputs, or up and down pulse
inputs
Counter range
−
2,147,483,648 to 2,147,483,647 pulses
Counter functions
Counter type
Ring counter or linear counter
Counter controls
Gate control, counter reset, and counter preset
Latch function
Two external input latches and one internal latch
Measurements
Pulse rate measurement and pulse period measurement
Voltage input specifications
Input voltage
20.4 to 28.8 VDC (24 VDC
+
20%/
−
15%)
ON voltage
19.6 VDC min./3 mA min.
Input current
4.2 mA typical (24 VDC)
OFF voltage
4.0 VDC max./1 mA max.
Maximum response
frequency
Phases A and B: Single-phase 500 kHz (phase differential pulse input x4: 125 kHz), Phase Z:
125 kHz
Internal I/O com-
mon processing
PNP
External input specifications
Input voltage
20.4 to 28.8 VDC (24 VDC
+20%,
−
15%)
ON voltage/ON cur-
rent
15 VDC min./3 mA min.
Input current
4.6 mA typical (24 VDC)
OFF voltage/OFF
current
4.0 VDC max./1 mA max.
ON/OFF response
time
1
μ
s max./2
μ
s max.
Internal I/O com-
mon processing
PNP
Dimensions
12
×
100
×
71 mm (W
×
H
×
D)
Isolation method
Photocoupler isolation
Insulation resistance
20 M
Ω
min. between isolated cir-
cuits (at 100 VDC)
Dielectric strength
510 VAC between isolated circuits
for 1 minute with leakage current of
5 mA max.
I/O power supply
method
Supplied from the NX bus.
20.4 to 28.8 VDC (24 VDC
+20%,
−
15%)
Current capacity of
I/O power supply ter-
minals
IOV: 0.3 A max. per terminal for
encoder supply section and 0.1 A
max. per terminal for other sections
IOG: 0.3 A max. per terminal for
encoder supply section and 0.1 A
max. per terminal for other sections
NX Unit power con-
sumption
0.95 W max.
Current consump-
tion from I/O power
supply
None
Weight
70 g max.
Summary of Contents for NX-EC0112
Page 13: ...11 Manual Structure NX series Position Interface Units User s Manual W524...
Page 34: ...Revision History 32 NX series Position Interface Units User s Manual W524...
Page 36: ...Sections in this Manual 34 NX series Position Interface Units User s Manual W524...
Page 78: ...3 Part Names and Functions 3 8 NX series Position Interface Units User s Manual W524...
Page 108: ...4 Installation and Wiring 4 30 NX series Position Interface Units User s Manual W524 Unit...
Page 114: ...4 Installation and Wiring 4 36 NX series Position Interface Units User s Manual W524...
Page 126: ...5 I O Refreshing Methods 5 12 NX series Position Interface Units User s Manual W524...
Page 340: ...8 Pulse Output Units 8 76 NX series Position Interface Units User s Manual W524...
Page 462: ...Appendices A 74 NX series Position Interface Units User s Manual W524...
Page 463: ...I 1 I NX series Position Interface Units User s Manual W524 Index...
Page 466: ...I 4 NX series Position Interface Units User s Manual W524 Index...