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