NSD NCV-20NBNVP - Appendix 2-2. Replacement Models; Appendix 2-3. Precautions for the Replacement from VE-2 A(G) to NCV-20

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Appendix 2-2. Replacement Models
The VE-2A (G) models and their corresponding NCV-20 replacement models are shown below.
VE-2A(G) model NCV-20 model Description
VE-2A (VRE-P028)
VE-2A (VRE-P062)
NCV-20NBNVP
Position data binary output
for single-turn type of ABSOCODER sensor (VRE)
VE-2AG (VRE-P028)
VE-2AG (VRE-P062)
NCV-20NGNVP
Position data gray binary output
for single-turn type of ABSOCODER sensor (VRE)
Appendix 2-3. Precautions for the Replacement from VE-2A(G) to NCV-20
Note the following contents when VE-2A(G) is replaced to NCV-20.
Item VE-2A VE-2AG NVC-20 Descriprion
Outside dimention 40 x 225 x 110 39 x 155 x 93 Compact
See VE-2A outline Dwg.
See the section “4-1.
Converter dimention”.
If the mounting fixture
option part "NCV-K1" is
applied, the mounting
hole of VE-2A(G) can be
used.
Mounting
Not mountable on DIN rail DIN rail mountable DIN rail mountable
Mass Approx. 0.8kg Approx. 0.4kg Lighter weight
Sensor
disconnected error
Not detectable
-SE light: ON
-Error output
Input / output
connector
14 to 20 pins: not used
14 to 17 pin: not used
18 pin: sensor disconnected
(positive logic)
19 pin: sensor disconnected
(negative logic)
20 pin: 0V for sensor
disconnected
Do not connect anything
from 14 to 20 pins.
Output circuit
Insulation,
photo-coupler
open
collector
output
Non-insulated,
transistor
open-collector
output
Insulation,
photo-coupler open
collector output
Use LP or HOLD signal
when reading the
position data.
There is a possibility
reading erroneous data
when these signals are
not used.
Output max. load
current
10mA 70mA 10mA
The output maximum
load current has
decreased by replacing
VE-2A(G) with NCV-20.
Pay attention the current
when connecting with
several PLCs or etc.
LP output state
during HOLD input
LP output stop LP output
LP signal of VE-2A(G)
stops during inputting
HOLD signal; however,
LP signal of NCV-20
doesn't stop even though
HOLD signal is input.
Position data gap
The origin position of NCV-20 is different from
VE-2A(G).
Change the current
position data of NCV-20
to the same value as
VE-2A(G) by using
"current position setting
function".
Please refer to the
section "8-4. Current
position setting" for the
setting process of
current position setting.