Schweitzer Engineering Laboratories SEL-2020 - Section 3: Installation;Section 3: Installation

Date Code 20010518 Installation i
SEL-2020 Instruction Manual
TABLE OF CONTENTS
SECTION 3: INSTALLATION 3-1
Introduction...................................................................................................................................3-1
Mounting and Connections ...........................................................................................................3-1
Mounting ...............................................................................................................................3-1
Frame Ground Connection....................................................................................................3-1
Power Connections................................................................................................................3-1
Alarm Contact Connection....................................................................................................3-1
IRIG-B Input Connection ......................................................................................................3-2
IRIG-B Output Connection ...................................................................................................3-2
Communication Circuit Connections ....................................................................................3-3
Communication Cables .........................................................................................................3-4
Communications ...........................................................................................................................3-6
Modems.................................................................................................................................3-6
Telephone Line Communications .........................................................................................3-7
Data Flow Control.................................................................................................................3-7
Baud Rate ..............................................................................................................................3-8
Master Device to SEL-2020 Communication .......................................................................3-8
Passwords ..............................................................................................................................3-8
Data Collection Periods.........................................................................................................3-8
Jumper Settings ...........................................................................................................................3-10
Main Board Jumpers ...........................................................................................................3-10
Input/Output Connections ...................................................................................................3-10
Configure the Inputs for 48 V, 125 V or 250 V ..........................................................3-11
Configure the Output Contact Form............................................................................3-11
Open the SEL-2020 to Access Internal Jumpers.................................................................3-12
Set Jumpers .........................................................................................................................3-12
Reassemble the SEL-2020...................................................................................................3-12
Installation...................................................................................................................................3-13
TABLES
Table 3.1: Serial Port Connector Pin Definitions .....................................................................................3-4
Table 3.2: Communication Cables for Devices Attached to SEL-2020 ...................................................3-5
Table 3.3: SEL-2020 Minimum Data Collection Period (in Seconds) .....................................................3-9
Table 3.4: Main Board Jumper Positions................................................................................................3-10
Table 3.5: Optional I/O Board Control Input Voltage Selection Jumper Positions................................3-11
Table 3.6: Optional I/O Board Contact Form Jumper Positions.............................................................3-11