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E154713
11-24
11: Using the I/O Options
Electro
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11.8.7: Digital Dry Contact Relay Output (Form C) Module
NOTE:
Only one of these modules may be connected to a Nexus® 1500+ meter.
The Digital Dry Contact Relay Output module is used to send a control output (electri-
cal signal) when a limit is exceeded, for example to turn on a breaker or sound an
alarm.
Digital Dry Contact Relay Output Module Specifications
Model Number
4RO1: 4 matching relay outputs
Contact Type
Changeover (SPDT)
Relay Type
Mechanically latching
Communication
RS485, Modbus RTU
Programmable Baud Rates: 4800, 9600, 19200,
38400, 57600
Power Requirement
12-20 VDC @50-200 mA; 1500+ supports only one
module
Operating Temperature
(-20 to +70)
o
C/(-4 to +158)
o
F
Switching Voltage
AC 250 V/ DC 30 V
Switching Power
1250 VA / 150 W
Switching Current
5 A
Switching Rate Max.
10/s
Mechanical Life
5 x 10
7
switching operations
Electrical Life
10
5
switching operations at rated current
Breakdown Voltage
AC 1000 V between open contacts
Isolation
AC 2500 V surge system to contacts
Reset/Power Down State
No change - last state is retained
Factory Settings
Modbus Address: 156
Baud Rate: 57600
Transmit Delay Time: 0
Default Settings (Reset Button)
Modbus Address: 247
Baud Rate: 57600
Transmit Delay Time: 20 msec
Summary of Contents for Shark 100T
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