Page top

NE1A-SCPU Series

Safety Network Controller

NE1A-SCPU Series

Achieve Safety Control through Programming.

Certified Standards

Certification body Standard
TÜV Rheinland NFPA 79-2012
EN ISO13849-1: 2006
IEC61508 part1-7: 2010
IEC61131-2:2007
EN ISO13849-2:2003
EN ISO 13850:2006 (EN418: 1992)
EN61000-6-4:2007
EN61000-6-2:2005
EN60204-1:2006
ANSI RIA15.06-1999
ANSI B11.19-2010
UL UL508
ANSI/ISA 12.12.01
UL1998
NFPA79
IEC61508
CSA22.2 No.142
CSA22.2 No.213

Specifications

Model NE1A-SCPU01-V1 NE1A-SCPU02
Communications power supply voltage 11 to 25 VDC supplied via communications connector
Internal circuit power supply voltage (V0) *1 20.4 to 26.4 VDC (24 VDC -15%/+10%)
I/O power supply voltage (V1, V2) *1
Current
consumption
Communications power supply 24 VDC, 15 mA
Internal circuit power supply 24 VDC, 230 mA 24 VDC, 280 mA
I/O power supply *2 24 VDC, 40 mA (Input)
120 mA (Output)
24 VDC, 80 mA (Input)
150 mA (Output)
Overvoltage category II
Noise immunity Conforms to IEC61131-2.
Vibration resistance 10 to 57 Hz: 0.35 mm, 57 to 150 Hz: 50 m/s2
Shock resistance 150 m/s2: 11 ms
Mounting method DIN Track (IEC 60715 TH35-7.5/TH35-15)
Ambient operating temperature -10 to 55°C
Ambient operating humidity 10% to 95% (with no condensation)
Ambient storage temperature -40 to 70°C
Degree of protection IP20
Serial interface USB version 1.1
Weight 460 g max. 690 g max.

*1. V0-G0: Internal control circuit
       V1-G1 (G): For external input device, test output
       V2-G2 (G): For external output device
       The two ground terminals on the NE1A-SCPU02 are internally connected.
*2. Not including power consumption for external devices.

Safety Input Specifications

Input type Sinking inputs (PNP)
ON voltage 11 VDC min. between each terminal and ground
OFF voltage 5 VDC min. between each terminal and ground
OFF current 1 mA max.
Input current 4.5 mA

Safety Output Specifications

Output type Sourcing outputs (PNP)
Rated output current 0.5 A max./output
ON residual voltage 1.2 V max. between each output terminal and V2
Leakage current 0.1 mA max.

Test Output Specifications

Output type Sourcing outputs (PNP)
Rated output current 0.7 A max./output *
ON residual voltage 1.2 V max. between each output terminal and V1
Leakage current 0.1 mA max.

* The maximum current for simultaneously ON outputs is 1.4 A.
    (T0 to T3: NE1A-SCPU01-V1, T0 to T7: NE1A-SCPU02)
    A 15 to 400-mA, 24-VDC external indicator can be connected to T3 and T7.

DeviceNet Communications Specifications

Communications protocol DeviceNet compliant
Connection form Multi-drop system and T-branch system can be combined
(for trunk line and branch lines)
Communications speed 500/250/125 kbps
Communications media Special cable, 5 conductors
(2 for communications, 2 for power supply, 1 for shielding)
Communications distance Communications
speed
Max. network length Branch length Total branch
length
500 kbps 100 m max.
(100 m max.)
500 m max. 39 m max.
250 kbps 250 m max.
(100 m max.)
78 m max.
125 kbps 500 m max.
(100 m max.)
156 m max.
Note: Figures in parentheses ( ) indicate values when a thin cable is used.
Communications power supply 11 to 25 VDC
No. of connectable nodes 63
Safety I/O communications
(Pre-Ver. 1.0)
Safety Master function
Max. no. of connections: 16
Max. data size: Input 16 bytes or output 16 bytes (per connection)
Connection type: Single-cast, multi-cast
Safety Slave function
Max. no. of connections: 4
Max. data size: Input 16 bytes or output 16 bytes (per connection)
Connection type: Single-cast, multi-cast
Safety I/O communications
(unit version 1.0 or later)
Safety Master function
Max. no. of connections: 32
Max. data size: Input 16 bytes or output 16 bytes (per connection)
Connection type: Single-cast, multi-cast
Safety Slave function
Max. no. of connections: 4
Max. data size: Input 16 bytes or output 16 bytes (per connection)
Connection type: Single-cast, multi-cast
Standard I/O communications
(all unit versions)
Standard Slave function
Max. no. of connections: 2
Max. data size: Input 16 bytes or output 16 bytes (per connection)
Connection type: Poll, bit-strobe, COS, cyclic
Message communications Max. message length: 552 bytes