9–12 EPM 9450/9650 ADVANCED POWER QUALITY METERING SYSTEM – INSTRUCTION MANUAL
DIGITAL DRY CONTACT RELAY OUTPUT (FORM C) MODULE CHAPTER 9: EXTERNAL I/O MODULES
9.6.2 Normal Mode
In Normal Mode, the Input Module:
1. Reads and averages the A/D and adjusts values for process 2.
2. Calculates the percentage of Input Value.
Note
The percentage value of the Input is stored in Input Value Registers (Registers 04097-
04104).
The device will operate with the following default parameters:
Address: 247 (F7H)
Baud Rate: 57600 Baud
Transmit Delay Time: 20 msec
Normal Operation is prevented by a number of occurrences. See Section 9.4 for details.
9.7 Digital Dry Contact Relay Output (Form C) Module
Digital Dry Contact Relay Output Module Specifications
Model Number 4RO1: 4 latching relay outputs
Contact Type Changeover (SPDT)
Relay Type Mechanically Latching
Communication RS485, Modbus RTU
Programmable Baud Rates: 4800, 9600, 19200, 38400, 57600
Power Requirement 2.0W max @ 12-20VDC
Operating Temperature (-20 to +70)
o
C/(-4 to +158)
o
F
Switching Voltage AC 250V / DC 30V
Switching Power 1250VA / 150W
Switching Current 5A
Mechanical Life 5 x 10
7
switching operations
Electrical Life 10
5
switching operations at rated current
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: 20msec
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