Summary of Contents for SurgeX SX2120-SEQ
- Page 1 SX2120-SEQ USER MANUAL Software Version 1.1 Three-Bank Sequencer With Power Conditioning Surge Protection...
- Page 2 1 DESCRIPTION 2 FEATURES 3 INSTALLATION 120 V ONNECTIONS EMOTE ONTROL ONNECTIONS 3.2.1 EQUENCE ONTROL NPUTS 3.2.2 NPUT 3.2.3 LED C XTERNAL ONNECTIONS 3.2.4 ONFIRMATION ONNECTION 4 QUICK START 5 PROGRAMMING OWER EQUENCING ONTROL ONTROL UTPUT UXILIARY ELAY RONT ANEL UTTON AC V ANGE...
- Page 3 7 TROUBLESHOOTING 8 ERROR CODES 9 SPECIFICATIONS...
- Page 4 With SurgeX ICE™ it is not necessary to take inrush currents into account when designing the AC power for a system, and special time-delay circuit breakers are not required: you only need to ensure that the steady-state currents of all products plugged into the SX2120-SEQ are within the 20 Amp rating of the product and within the rating of the AC wiring.
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Page 5: Installation
• Auxiliary relay or 12V dc output can be programmed to provide confirmation feedback 3 Installation The SurgeX SX2120-SEQ is designed to be installed in a 19 inch equipment rack and requires two units (2-U) of rack space. Connect power to the unit by plugging the cord into a 120V ac, 20 amp receptacle. - Page 6 Pin 1 – Up Input Pin 2 – Down Input Pin 3 – Over-Ride Input Pin 4 – 12 V dc Output Pin 5 – Common Pin 6 – Aux Relay Contact Pin 7 – Aux Relay Contact 3.2.1 Up/Down Sequence Control Inputs The SEQ can be controlled by a DC voltage in the range 5V to 30V, by a contact closure (such as a relay), or by a switch.
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Page 7: Over-Ride Input
“over-ride” and the negative wire to “common”. 3.2.3 External LED Connections The SX2120-SEQ is able to drive external LEDs or other signaling devices through its 12V dc output which can provide up to 40mA of current. External LEDs connected in this way will mimic the red LED on the front panel. -
Page 8: Quick Start
This section is intended to allow users with a simple straightforward system incorporating a single SX2120-SEQ to get up and running with the minimum of effort. If this is not the case then skip this entire section and go directly to the detailed programming section (section 5). If you are going to follow the quick start instructions, you only need to perform the following steps since the unit has been shipped with default settings suitable for basic operation. - Page 9 5 Programming The SX2120-SEQ is a very versatile sequencer and has 21 menu items that control its operation. Some menu items allow predetermined options to be selected and others allow time delays or voltage limits to be adjusted.
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Page 10: Power Sequencing Control
Set the delay in seconds for Bank C powering off 5.2 Over-Ride Control The SX2120-SEQ has an optional over-ride and there are four menu items that control this function. If you do not require an over-ride, you can skip the next four menu items since units are shipped with this function disabled. -
Page 11: Auxiliary Relay
A, B or C. Choose A, B, or C when a forth bank is added to the system and the relay is used to control an “RT” type SurgeX. “Gang” or “Cascade” are selected when two or more SEQs are ganged or cascaded together. All these options are covered in detail in the applications section. -
Page 12: Front Panel Push Button
5.6 Out-of-Range AC Voltage Shut Down The SX2120-SEQ has built-in line voltage monitoring and out-of-range shut down. The default limits are 90V at the low end and 150V at the high end, and the shut down sequence begins if the line voltage remains outside the set limits for 2 seconds or more. -
Page 13: Restore Functions
5.8 Restore Functions There are two menu items which, when enabled, allow the SEQ to restore the original “on” condition after shut-down caused either by loss of AC power (or out-of-range AC) or by an over- ride. When these options are disabled, the SEQ will not power up when the condition that caused the shut down goes away. -
Page 14: General Points
6 Applications The SX2120-SEQ can be used in four types of configuration: a single unit providing three sequenced banks; an expanded system where the SEQ controls a remote turn-on SurgeX providing four sequenced banks (or three banks with increased current capacity for one bank); a ganged system where two or more SEQs are connected together such that they all turn on and off at the same time providing three banks with increased current capacity for all three banks;... - Page 15 12V dc output can also provide confirmation to a central controller or be used to drive a small relay (40mA maximum coil current). See section 3.2 for connection details and section 5.3 for programming details. The 12V dc output has a special use when SEQs are cascaded together – this is covered in the section on cascaded systems.
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Page 16: Single Unit System
2 shows a single unit controlled by a central controller. 6.3 Expanded System An expanded system consists of an SEQ in combination with a remote turn-on SurgeX such as the SX1120-RT or the SX20-NE/RT. Such a system provides a total of four banks and 40 Amps total load capacity. -
Page 17: Ganged System
an SX1120-RT, connected to an SEQ, should turn on last and off first, the menu items shown below should be programmed as follows: Delay C On Delay C Off Aux Sync Aux Delay On Aux Delay Off *These delay times are an example. Set actual times as required for each application. In the above example, the turn-on delay for bank C is 5 seconds and the turn-on delay for the SX1120-RT is 10 seconds. -
Page 18: Cascaded System
add units in the middle and set them up and connected them in the same way as the middle unit in the diagram. The remote control inputs should be connected to the first unit, and the same control options are available as for a single-unit system. -
Page 24: Troubleshooting
7 Troubleshooting Initial Check Whenever power is applied to the SEQ the LCD display should be back-lit and the display should show three lines of text as follows: Status: All On or All Off Protection: Good Voltage: 120Vac (or whatever the actual line voltage is) If the first line of the display shows “Programming”, the unit is in programming mode and therefore will not turn on. -
Page 25: Error Codes
The unit starts to sequence up but then immediately sequences down This is most likely caused by a Down input that is on all the time and over-riding the power up sequence. The unit will not go into programming mode You must power down the unit first before you can get into the programming mode. -
Page 26: Specifications
9 Specifications Operational Voltage Range: 90 to 150 Volts AC Current rating: 20 Amps Power Rating: 2,400 Watts Maximum Load Inrush Energy: 1400 Joules total during power-up Surge Protection Rating: Grade A (1,000 surges of 6,000 Volts, 3,000 Amps, no degradation) Class 1 (SVR is less than 330 Volts for 6,000 Volt, 3,000 Amp surge)
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