Yokogawa Relay Board ARM55W
Manufacturer: Yokogawa Electric Corporation
32 Wet Contact Outputs (M4 Terminals)
The Relay Board is used in FIO subsystem of CENTUM VP. Relay input/ output boards are connected in between digital input/output modules (for FIO) and field devices. Relay input boards receive contact signals or voltage input signals of field devices. Yokogawa Relay Board ARM55W Relay output boards receive output signals of the digital output module and amplify by the relay, and then output to field devices. These relay boards support dual- redundant digital input/output modules (for FIO). Yokogawa Relay Board ARM55W
STANDARD SPECIFICATIONS
lRelay Boards Detail Specifications
Mechanical Relay Boards (Contact Output)
Models
ARM55D
ARM55W ARM55T (with switch)
ARM55C
Usage
Mechanical RelayDry Contact Output(“a” contact (NO)) (Single / Dual redundant)
Mechanical RelayWet Contact Output(Single / Dual-redundant)AUTO/OFF/ON switch(only for ARM55T)
Mechanical RelayDry Contact Output(“a” contact or “b” contact(NONC))(Single / Dual- redundant) (*6)
Contact Points
32-point
Terminals for Field Device Connection
M4 screws
M3.5 screws (*5)(M4 in power input part)
Modules
ADV551 (DO: 32-point)
+ ATD5A (Terminal block)
ADV561 (DO: 64-point) (*1)
Signal Cables
AKB331 (for 32-point)
AKB337 (for 64-point)
Maximum Load (*2)
250 V AC: 2 A per point
30 V DC: 2 A per point
125 V DC: 0.1 A per point (*3)
250 V AC: 0.6 A per point
30 V DC: 0.6 A per point
30 V DC: 1.5 A per point
Minimum Load
5 V, 10mA
5 V, 10 mA
Power Supply Voltage and Current Consumption of Internal Circuit (require external power supply)
24 V DCMax. 0.65 A
24 V DCMax. 0.85 A
Power Supply for Field Device (require external power supply)
-
Dual-line (supply power per 16-point)
250 V AC: Max. 9.6 A
30 V DC: Max. 9.6 A
125 V DC: Max. 1.6 A
Insulation Resistance
At least 10 MΩ (500 V DC)
Withstanding Voltage
Between field device terminalsand cases: 2 kV
Between 24 V power terminalsand cases: 500 V
Between 24 V power terminalsand field device terminals: 2 kV
Ambient Temperature and Humidity
0 to 50 °C, 10 to 90 %RH
Standards
Safety Standard [CSA] (*3)
EMC standards [CE Marking],[C-Tick Marking]
EMC standards [CE Marking],[C-Tick Marking] (*4)
Size
W: 482.6 mm x H: 132.5 mm (3U)
W: 482.6 mm x H: 177 mm (4U)
Weight
2.2 kg
2.6 kg
*1: Two sets of relay board (ARM55D, ARM55W, ARM55T, or ARM55C) and two sets of signal cable (AKB337) are required for one ADV561.
*2: For inductive loads, connect a spark killer (CR network for AC; diode for DC) in parallel with loads.
*3: For DC, 30 V or less is the requirement for the Safety Standard.
*4: ARM55C is out of scope of the Safety Standards.
*5: The applicable size of solderless lug is described below.
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