Yokogawa Safety Control Unit SSC50S (for Vnet/IP, 19-inch Rack Mountable)
HARDWARE SPECIFICATIONS
For the criteria for the installation
environment, refer to “ProSafe-RS Safety Instrumented System Overview” (GS
32Q01B10-31E).
Processor
MIPS R5000 Processor
Main Memory Capacity
32 MB
Memory Protection at Power Failure
Yokogawa Safety Control Unit SSC50S
Application program is stored in non-volatile
memories.
Processor Module Management Information is stored in the storage memories backed up by a
non- rechargeable battery.
The battery’s recommended replacement cycle is three years when it is used
under the average ambient temperature of 30 °C or less.
Temperature Adaptability
A fan
unit is provided for high temperature use where the safety control units
(SSC50S-F/SSC50D-S2521-F) ambient temperature exceeds 40 °C.
Communications Interface
Vnet/IP interface:
Dual-redundant
ESB bus interface: Dual-redundant
Communication on Vnet/IP
Communication speed: 100
Mbps, Full duplex
Connection: UTP cable (CAT5e
or higher), RJ45 connector
Interface: 100Base-TX compliance
Max. distance: 100 m (distance between SSC50S/ SSC50D-S2521
and Layer 2 switch)
Connecting Safety Node Units
Power Requirements
Specify suffix codes.
Voltage: 100 to
120 V AC, 50 or 60 Hz Voltage: 220 to 240 V AC, 50 or 60 Hz Voltage: 24 V DC
Power Consumption
Yokogawa Safety Control Unit SSC50S
• SSC50S-S/SSC50D-S2521-S
100 to 120 V AC
model: 200 VA
200 to 240 V AC
model: 230 VA
24 V DC model: 5.5 A
• SSC50S-F/SSC50D-S2521-F
100 to 120 V AC
model: 240 VA
200 to 240 V AC
model: 290 VA
24 V DC model: 7.0 A
Weight
Approximately 7.9 kg (for SSC50S-S)
Approximately 13.0 kg (for SSC50S-F) Approximately 8.5 kg (for SSC50D-S2521-S) Approximately
13.0 kg (for SSC50D-S2521-F)
Mounting
For each safety control unit, up to nine safety
node units can be connected. For installation, ESB bus coupler modules (SEC401)
should be mounted on 7-th and 8-th slots.
ESB bus can be extended by Optical ESB bus
repeater module.
Yokogawa Safety Control Unit SSC50S
Number of I/O Modules Mounted
Up to eight for each safety control unit
Up
to 78 for each SCS
MODELS AND SUFFIX CODES
Duplexed Safety Control Unit (for Vnet/IP, 19-inch Rack Mountable)
Yokogawa Safety Control Unit SSC50S
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[Style: S1]
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Description
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Model
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SSC50S
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Safety Control Unit (for Vnet/IP, 19-inch Rack Mountable)
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Suffix Codes
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-S
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Standard Type (with ISA Standard G3)
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-F
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Wide range temperature (-20 to 70 °C) type (with Fan unit and ISA Standard G3)
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2
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Dual-redundant power supply
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5
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With no explosion protection
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E
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With explosion protection
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1
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100-120V AC power supply
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2
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220-240V AC power supply
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4
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24 V DC power supply
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1
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CFS1100 Safety Control Function License
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Option Code
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/ATDOC
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Explosion protection manual
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/ERFI
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Enhanced RFI
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