Programmable Safety Controller SCR P
12
www.bernstein.eu
- Tel: + 49 571 793 0
4 Specifications and Requirements
4.1 SCR P Specifications
Power
Voltage:
24 V DC ±20%
(SELV/PELV)
Current:
240 mA maximum, no load (relays on)
530 mA maximum, full load (IO1 to IO4 used as auxiliary outputs)
Safety Inputs (and Convertible I/O when used as inputs)
Input On threshold:
> 15 V dc (guaranteed on), 30 V dc maximum
Input Off threshold:
< 5 V dc and < 2 mA,
–3 V dc minimum
Input On current:
5 mA typical at 24 V dc, 50 mA peak contact
cleaning current at 24 V dc
Input lead resistance:
300 Ω maximum (150 Ω per lead)
Input requirements for a 4-wire Safety Mat:
2
·
Maximum capacity between plates: 0.22 μF
2
Convertible I/O
Sourcing current:
80 mA maximum (overcurrent
protected)
Test Pulses:
~1 ms every 25 to 75 ms
Daisy Chain Diagnostic
Two diagnostic series connectable (IN3+4 and IN5+6)
Up to 32 safety devices connected per series
Automatic Terminal Optimization Feature
Up to three devices connected with user-provided terminal blocks
Network Interface
Ethernet 10/100 Base-T/TX, RJ45 modular connector
Selectable auto negotiate or manual rate and duplex
Auto MDI/MDIX (auto cross)
Protocols:
EtherNet/IP (with PCCC), Modbus/TCP, and PROFINET
Data
: 256 virtual Status Outputs; fault diagnostic codes and messages;
access to fault log
·
Maximum capacity between bottom plate and ground: 0.22 μF
·
Maximum resistance between the 2 input terminals of one plate: 20 Ω
2 If the safety mats share a convertible I/O, this is the total capacitance of all shared safety mats.