Yokogawa Models AFS20S AFS20D AFG20S AFG20D Field Control Unit
Yokogawa Models AFS20S AFS20D AFG20S AFG20D Field Control Unit/Duplexed Field Control Unit (for RIO with Cabinet)
GENERAL
his GS covers the hardware specifications for the Field Control Unit (FCU) which is the intelligence part in the Field Control Station (FCS).
HARDWARE SPECIFICATIONS
For the installation specifications and the environmental conditions common to the systems, refer to “System Overview (GS 33Q01B10-31E).”
Processor
VR5432 (133 MHz)
Main Memory Capacity
AFS20S, AFS20D: 16 Mbyte
AFG20S, AFG20D: 32 Mbyte
Memory Protection During Power Failure
Battery
Battery Back-up for Main Memory: Max. 72 hours
Battery Recharge Time: Min. 48 hours
FCU Status Contact Output
Three terminals (NC, NO, C)
Contact Points open or closed during FCU failure
Contact Rating:
Rated voltage: 250 V AC, max. 30 V DC
Rated current: Max. 2 A
Rated power supply: Max. 125 VA
Communication Interface
V net interface: Dual-redundant
RIO bus interface: Dual-redundant or single
No. of Nodes Connectable
Max. 8 Nodes
Power Supply
(specify with Suffix Codes)
100-120 V AC, 50/60 Hz
220-240 V AC, 50/60 Hz
24 V DC
Electric Power Consumption
100-120 V AC: 1700 VA (at max. node installation)
220-240 V AC: 2000 VA (at max. node installation)
24 V DC: 50 A (at max. node installation)
Weight
Approx. 250 kg (excluding nodes)
Approx. 400 kg (at maximum node installation)
Connection
Power Supply: M6 screw terminal connection
(dual power system possible)
Grounding: M8 bolt terminal connection
Contact Output: M4 screw terminal connection
Paint Color
Main body: Frosty white (Munsell No. 2.5 Y 8.4/1.2)
Channel base: Spring black (Munsell No. 3.3PB2.5/0.5)
Channel Base Option Specification
Channel base with hole for cable: (Option Code:/CH)
A hole for cables, 300 (length) by 40 (width) mm is opened at the rear of the channel base (with filler plate at time of delivery).
IP Protection Rating
IP20
Regulatory Compliance
For the detailed information of following standards, see “System Overview (GS 33Q01B10-31E).” Safety Standards
[CSA] (for 100-120 V AC power supply)
[CE Mark] (for 220-240 V AC power supply)
EMC Conformity Standards
[CE Mark] (for 220-240 V AC and 24 V DC power supply)
[C-Tick Mark] (for 220-240 V AC and 24 V DC power supply)
AFS20S AFS20S-H2113 AFS20S-H2123 AFS20S-H2143 AFS20S-H4113 AFS20S-H4143
AFS20D AFS20D-H4113 AFS20D-H4123 AFS20D-H4143 AFS20D-H4213 AFS20D-H4223 AFS20D-H4243
AFG20S AFG20S-H2113 AFG20S-H2123 AFG20S-H2143 AFG20S-H4113 AFG20S-H4143
AFG20D AFG20D-H4113 AFG20D-H4123 AFG20D-H4113 AFG20D-H4143 AFG20D-H4213 AFG20D-H4223 AFG20D-H4243
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