Emerson Liebert Static Transfer Switch Betriebsanleitung Seite 121
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Specifications 109
15.2 System Components
All STS2 models provide two static transfer switches within one enclosure, with the ability to trans-
fer between two input sources to a single output.
All STS2s are configured with either an LCD Color Graphical Interface touch screen display or
LEDs for monitoring and configuring the unit.
This section lists the common components and the differences for both types of units.
15.2.1 Frame and Enclosure
The complete STS2 is housed in a freestanding enclosure. The cabinet is a NEMA type 1 enclosure
and meets IP20 requirements. The cabinet is structurally designed to handle lifting from the base.
The frame is designed to accommodate floor stands.
The distributed floor weight for STS2 is less than 150 lbs./sq. ft. (660kg/m²).
The required service access is only from the front of the unit.
The STS2 can be tipped 15° in any direction without falling over.
15.2.2 Castors, Leveling and Seismic Anchoring
The frame includes heavy-duty swivel castors for ease of installation, plus permanent leveling feet
for final installation.
The unit also can be fastened to the floor using optional seismic anchors to meet seismic Zone 4
requirements. See 4.0 - Locating the STS2 on page 12 and Figure 11 on page 29 through
Figure 13 on page 31 for instructions and details for installing seismic anchoring.
15.2.3 Cooling
The STS2 100 – 600A units utilize convection air cooling for the enclosure with forced air cooling of
the heat sinks. The 800-1000A units are fan cooled using low-velocity fans to minimize audible
noise. All fans are redundant so that a single fan failure cannot cause temperatures to increase
beyond acceptable limits.
Air intake is through screened protective openings in the front of the unit. A standard furnace filter
is installed behind the openings.
By opening the front door, the filter can be changed easily without exposing personnel to high volt-
age.
The size of the filter is 1 in. x 25 in. x 25 in. (2.54 cm x 63.5 cm x 63.5 cm).
The air exhaust is through the top of the unit.
Table 22 Frame Sizes
Rating Width Depth Height
100 – 250A 3 pole 30 in (76 cm) 32 in (81 cm) 76.77 in (195 cm)
400 – 600A 3 pole 38 in (96 cm) 32 in (81 cm) 76.77 in (195 cm)
800 – 1000A 3 pole 84 in (213 cm) 32 in (81 cm) 76.77 in (195 cm)
- Static Transfer Switch 2 1
- 2
- Table of Contents 3
- List of Figures 9
- List of Tables 11
- IMPORTANT SAFETY INSTRUCTIONS 13
- OVERVIEW OF MANUAL 14
- SUPPORT INFORMATION 15
- 6 18
- 1.0 SAFETY PRECAUTIONS 19
- 2.0 UNPACKING AND INSPECTIONS 20
- 2.3 Internal Inspections 21
- 3.0 LOCATION CONSIDERATIONS 22
- 3.4 Altitude 23
- Max. Ambient Temperature 23
- Altitude—Feet 23
- 4.0 LOCATING THE STS2 24
- 5.0 POWER AND CONTROL WIRING 25
- 5.3 System Grounding 27
- 5.6 Power Supply 29
- 6.0 OPTIONS 30
- 6.3 Comms Board 31
- 6.4 Internal Modem 31
- 6.6 Remote Source Selection 32
- 6.7 Key Lockout Switch 32
- 6.8 Redundant Output Breaker 32
- 6.10 Seismic Floor Anchors 33
- 22 Options 34
- 7.0 INSTALLATION DRAWINGS 35
- FRONT VIEW SIDE VIEW 36
- BOTTOM VIEW TOP VIEW 36
- DETAIL A 36
- FRONT VIEW 37
- SIDE VIEW 37
- TOP VIEWBOTTOM VIEW 37
- TOP VIEW 38
- BOTTOM VIEW 38
- FILE NAME: 41
- FIGURE 2 43
- FIGURE 3 43
- SECTION A-A 44
- ONE-LINE DIAGRAM 44
- COLUMBUS, OHIO 43229 50
- 1050 DEARBORN DRIVE 50
- PROGRAMMABLE RELAY BOARD 54
- TABLE (J51) 55
- NETWORK INTERFACE 58
- CARD (NIC) 416241GX 58
- CONTROL WIRING 59
- RS-232 INTERFACE 59
- STATIC TRANSFER SWITCH 2 59
- OUTLINE DRAWING 60
- INPUT JUNCTION BOX 60
- 8.1 System Description 63
- 8.2 Modes of Operation 64
- 8.3 Operator Controls 65
- 9.0 THEORY OF OPERATION 66
- Hardware 68
- Firmware 68
- 9.2.2 Circuit Breakers 68
- 9.2.4 Logic Modules 69
- 9.2.5 Audible Alarm 69
- 9.2.6 RS-232 Port 69
- 9.2.3 SCRs 69
- 10.1 Normal System Turn-On 70
- 10.4 Maintenance Bypass 73
- 10.5 Normal System Shutdown 76
- 11.0 ALARM AND FAULTS 77
- 11.2 Event and History Logs 78
- 11.3 Alarm Notes 79
- 11.4 List of Messages 79
- Table 9 Event Messages 80
- 12.0 COMMUNICATION INTERFACES 82
- Groups Parameter 84
- Item Parameter 84
- Value Parameter 85
- 13.1 Display Overview 91
- 13.2 Menu Overview 92
- 13.2.1 Security 93
- Using the Password 93
- 13.3 Mimic Display 94
- 13.4 Event Controls 94
- 13.5 Event Display 94
- 13.6 Menu bar 94
- User Settings 95
- Source Set Points 96
- System Settings 99
- Comm Options 99
- Configuring the Modem 100
- STS2 Touch Screen Display 89 101
- Configuring Pager Support 102
- STS2 Touch Screen Display 91 103
- SiteScan Configuration 105
- System Options 105
- Event Log 107
- History Log 107
- System ID 107
- 13.6.2 Logs 107
- 13.6.3 Source Transfers 108
- 13.6.4 Startup Procedure 108
- 13.6.5 Bypass Procedure 108
- 13.6.6 Help 109
- 13.6.7 Logo 109
- PERATING THE LED DISPLAY STS2 111
- 14.1.2 Event Controls 112
- 14.1.3 LED Definitions 113
- 14.1.4 Button Definitions 114
- 14.1.5 Key Lockout Switch 114
- 14.2 Operations 115
- 14.2.3 Maintenance Bypass 116
- 14.2.4 Normal System Shutdown 118
- 15.0 SPECIFICATIONS 119
- 15.1.4 Grounding 120
- 15.1.7 Response Time 120
- 15.2 System Components 121
- 15.2.4 Access 122
- 15.2.5 Circuit Breakers 122
- 15.2.6 Cable Entrance 122
- 15.2.7 Doors 122
- 15.2.9 RS-232 Port 123
- 15.2.12 Maintenance Bypass 124
- 15.2.13 Fuseless Design 124
- 15.2.14 Options 124
- 16.0 EVENT MESSAGE HELP TEXT 125
- 17.0 MAINTENANCE 147
- 17.4 Contacting Liebert 148
- 6WDWLF7UDQVIHU6ZLWFK 150
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