Manufacturer: Yokogawa Electric Corporation
Yokogawa ProSafe-RS
Yokogawa Relay Board SRM53D
The terminal boards/relay boards used for the ProSafe-RS system
Relay Board
19-inch Rack Mountable Type
Item
Specifications
Model
SRM53D
SRM54D
Type of input/output and number of I/O
points
Contact output/8-point x 2 (dry contact outputs)
Contact output/16-point x 1 (dry contact outputs)
Terminals
M4 screws, 16-pole x 2 (outputs) M4 screws, 2-pole x 1 (power)
Connection module
SDV531, SDV144 (read-back) (*1) Dual-redundant possible
SDV541, SDV144 (read-back) (*1) Dual-redundant possible
External connection
Dedicated signal cable AKB331
Target IOM and interface
SDV531 + AKB331/SDV531 (*1) SDV144 (read-back) + AKB331/SDV144
Dual-redundant possible
SDV541 + AKB331/SDV541 (*1) SDV144 (read-back) + AKB331/SDV144
Withstanding voltage
Between field device terminals and case: 2 kV
Between 24-V power terminal and case: 500 V
Between 24-V power terminal and field device terminals: 2.5 kV
Insulation resistance
At least 10 MΩ (at 500 V DC)
External supply voltage/current
24 V DC +5 %, -3.1 % (*2) Up to 1500 mA (at 24 V DC)
24 V DC +5 %, -1.2 % (*2) Up to 1500 mA (at 24 V DC)
Rated output voltage/current (current
/point)
250 V AC / 2 A
125 V DC / 0.4 A
30 V DC / 2 A
Ambient temperature (during operation)
-20 to 70 °C
Ambient humidity (both during operation and in transit/storage conditions)
5 to 85 % RH
Weight
2.7 kg
Model and Suffix Codes
Single or dual-redundant relay board with digital output
Description Model SRM53D 8 × 2 Dry Contact Output (Safety Relay Built-In, M4 Terminals) Suffix Codes -0 Always 0 0 19-inch Rack mountable 0 Basic Option Code /BR4 Wall-mount bracket
Description
8 × 2 Dry Contact Output (Safety Relay Built-In, M4 Terminals)
Suffix
Codes
-0
Always 0
0
19-inch Rack mountable
Basic
Option
Code
/BR4
Wall-mount bracket
16 × 1 Dry Contact Output (Safety Relay Built-In, M4 Terminals)
SBM54D
Relay board for Digital output: DIN rail mount type (Single and Dual-redundant, 16-channel x 1, for SDV541)
Standard type
Standard Accessories
The relay boards and the terminal boards are supplied with the following accessories.
Accessory
Part number
Quantity
Remarks
Terminal board
Fuse
A1583EF
SED2D
4
Mounted
A1034EF
SED3D
SED4D
2
S9536VK
SWD2D
8
S9533VK
32
A1602EF
SBD2D
A1603EF
SBD3D
SBD4D
Relay board
A1327EF
SRM53D, SRM54D
16
Contact Number: +86 13724889019 Email: tekrachel2024@163.com Web: www.tek-international.com WeChat: tekrachel tekrachel@163.com
Add.: Room 2401 Building D Greenland Central Plaza, Science City, Huangpu District, Guangzhou 510663, Guangdong Province, China.