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Safety Network Controller

NE1A-SCPU Series

NE1A-SCPU Series

Achieve Safety Control through Programming.

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Specifications

ModelNE1A-SCPU01-V1NE1A-SCPU02
Communications power supply voltage11 to 25 VDC supplied via communications connector
Internal circuit power supply voltage (V0) *120.4 to 26.4 VDC (24 VDC -15%/+10%)
I/O power supply voltage (V1, V2) *1
Current
consumption		Communications power supply24 VDC, 15 mA
Internal circuit power supply24 VDC, 230 mA24 VDC, 280 mA
I/O power supply *224 VDC, 40 mA (Input)
120 mA (Output)		24 VDC, 80 mA (Input)
150 mA (Output)
Overvoltage categoryII
Noise immunityConforms to IEC61131-2.
Vibration resistance10 to 57 Hz: 0.35 mm, 57 to 150 Hz: 50 m/s2
Shock resistance150 m/s2: 11 ms
Mounting methodDIN Track (IEC 60715 TH35-7.5/TH35-15)
Ambient operating temperature-10 to 55°C
Ambient operating humidity10% to 95% (with no condensation)
Ambient storage temperature-40 to 70°C
Degree of protectionIP20
Serial interfaceUSB version 1.1
Weight460 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 typeSinking inputs (PNP)
ON voltage11 VDC min. between each terminal and ground
OFF voltage5 VDC min. between each terminal and ground
OFF current1 mA max.
Input current4.5 mA

Safety Output Specifications

Output typeSourcing outputs (PNP)
Rated output current0.5 A max./output
ON residual voltage1.2 V max. between each output terminal and V2
Leakage current0.1 mA max.

Test Output Specifications

Output typeSourcing outputs (PNP)
Rated output current0.7 A max./output *
ON residual voltage1.2 V max. between each output terminal and V1
Leakage current0.1 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 protocolDeviceNet compliant
Connection formMulti-drop system and T-branch system can be combined
(for trunk line and branch lines)
Communications speed500/250/125 kbps
Communications mediaSpecial cable, 5 conductors
(2 for communications, 2 for power supply, 1 for shielding)
Communications distanceCommunications speedMax. network lengthBranch lengthTotal branch length
500 kbps100 m max.
(100 m max.)		500 m max.39 m max.
250 kbps250 m max.
(100 m max.)		78 m max.
125 kbps500 m max.
(100 m max.)		156 m max.
Note: Figures in parentheses ( ) indicate values when a thin cable is used.
Communications power supply11 to 25 VDC
No. of connectable nodes63
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 communicationsMax. message length: 552 bytes

Caution: In the interenst of product improvement, specifications are subject to change without notice.

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