Alpha CFR 1500, CFR 1500RM User Manual

Operator’s Manual

Alpha CFR 1500 and

CFR 1500RM

U N I N T E R R U P T I B L E P O W E R S U P P L I E S

F R O M A L P H A T E C H N O L O G I E S

©1997 Alpha Technologies

IMPORTANT SAFETY INSTRUCTIONS

CONTAINED IN THIS MANUAL

CAUTION

RISK OF ELECTRICAL SHOCK

CAUTION: To reduce the risk of electrical shock, and to ensure the safe operation of this unit, the following symbols have been placed throughout the manual. Where these symbols appear, servicing should be performed only by qualified personnel.

Dangerous Voltage

A dangerous voltage exists in this area.

Use extreme caution.

Attention

Important operating instructions.

Follow these instructions closely.

WARNING:

To reduce the risk of fire and shock hazards, do not expose this unit to rain or moisture.

SAVE THESE INSTRUCTIONS

This manual contains important installation and operating instructions. Keep this manual in a safe place.

THE ALPHA CFR

IMPORTANT SAFETY PRECAUTIONS

Carefully unpack the unit. Report any shipping damage immediately.

Please read the operators manual. If you have any questions regarding the safe installation of the unit, contact Alpha Technologies.

The unit should be serviced only by qualified personnel.

The unit contains more than one live circuit. Even though AC is not present at the input, it may be present at the output.

Always switch the battery circuit breaker to off before connecting or disconnecting an external battery pack. This greatly reduces the chance of spark.

For units with a detachable AC line cord, connect a dedicated grounding wire (14 AWG/ 2.0 mm2) from the ground lug on the back of the unit to an electrical ground point. This wire should be rated 75OC minimum, with green insulation provided with one or more yellow stripes. This will provide a safety ground connection to the unit and all of its attached equipment, even when the AC line cord is unplugged.

The connections on the back of this unit are not for use with telephone network connections.

The standard unit, with line cord and receptacles, may be installed by a non-technical user.

Units equipped with terminal block input or output connectors, or external battery packs, must be installed by qualified service personnel in accordance with the following table:

MODEL	TERMINAL BLOCKS		TIGHTENING TORQUE
	AWG	mm2	Inch	Newton
			Pounds	Meters
1500RM	14	2.0	35	4.0

When not in service, the batteries should be charged at least once every three months to ensure optimum performance and battery life. For units with line cords, simply plug the unit’s power cord into a wall receptacle and leave it running for one to three days.

The unit should be installed upright in a well ventilated area that is free of dust and moisture.

Alert Fire or Emergency personnel than an uninterruptible power supply is installed in the building by placing a notification or warning label on the electrical panel.

When connecting a load to the units’ rear panel, do not exceed the output rating of the unit.

THE ALPHA CFR

IMPORTANT SAFETY PRECAUTIONS

The CFR1500 and CFR1500RM Series units contain sealed, Lead-Acid batteries consisting of:

Four batteries, six cells each, 48 VDC total.

WARNING: Batteries contain high energy and chemical hazards. Carefully read this manual regarding safe battery handling, maintenance and disposal instructions. Inspection and replacement should be performed only by qualified personnel.

Wear insulated gloves and eye protection whenever working inside the battery compartment.

Do not allow live battery wires to contact the units’ chassis. Shorting battery wires could result in a fire or possible explosion.

Batteries should be inspected every year for cracking, leaking, or signs of swelling.

Always replace batteries with those of an identical type and rating. Never install old or untested batteries.

Avoid using uninsulated tools or other conductive materials when handling batteries or working inside the unit.

Remove all rings, watches and other jewelry before servicing batteries.

Spent batteries are considered environmentally unsafe. Always recycle batteries.

Verify the voltage requirements of the equipment to be protected (load), the AC input to the UPS (Line), and the output voltage of the UPS prior to installation.

The utility service panel should be equipped with a circuit breaker that is rated (Amperage) for use with the UPS

Use proper lifting techniques whenever handling the UPS or an external battery pack.

THE ALPHA CFR

Table Of Contents

The Alpha CFR1500 and CFR 1500 RM

Uninteruptible Power Supplies

1.	INTRODUCTION ............................................................................		1
	1.1	The Alpha CFR	1
	1.2	The CFR Advantage	2
	1.3	Unpacking and Inspection	4
2.	FEATURES ....................................................................................		5
	2.1	A Tour of the CFR	5
	2.2	The CFR Front Panel	5
	2.3	CFR Rear Panel	6
	2.4	Information Management Options	8
		Standard Interface Device
		Intelligent Interface Device
		External Modem
	2.5	Communication / Interface Options	10
	2.6	RS-232 Communication Options	15
		RS–232 Connector
		Rear Panel RS–232 Port
		Terminal Emulation Setup
		Connecting an External Modem
		Desktop IID RS–232 Por t
3.	INSTALLATION ...........................................................................		18
	3.1	Pre-Installation	18
		Site Preparation
		Utility Circuit Breaker
		Grounding
		Standby Generators
	3.2	Connecting the CFR (Plug and receptacle)	19
	3.2.1	Terminal Block Input and OutputWiring	20
	3.3	External Battery Pack	22
	3.4	208 VAC vs 240 VAC (60 Hz) Configurations	23
4.	OPERATION ................................................................................		26
	4.1	Start-up, Test and Shutdown	26
	4.2	External Modem Configuration	29
		Specifications
		Enabling External Modem
		Configuring the modem to work with CFR

IMPORTANT:

EMERGENCY SHUTDOWN PROCEDURE ON INSIDE BACK COVER

i

THE ALPHA CFR

Table Of Contents, continued

4.OPERATION

	4.3	External Modem Operation	32
		Initializing the Modem
		Sending Automatic Alarms
		Remote Access Using External Modem
	4.4	Using the Standard Interface Device	35
5.	RS-232TERMINAL COMMUNICATION ......................................		40
	5.1	Remote RS-232 Operation	40
	5.2	RS-232 Menu Selection Icons	41
	5.3	RemoteTerminal Quick Reference	42
		Overview
		Testing the CFR
		Shutting off the Inver ter to Save Battery
		Scheduling Output Shutdown/Reboot
	5.4	Menu Commands Overview	43
	5.5	System Parameters	44
	5.6	Input Parameters	45
	5.7	Output Parameters	45
	5.8	Battery Parameters	47
	5.9	User Parameters	47
	5.10	External Modem Parameters	52
	5.11	Maintenance Parameters	56
	5.12	Parameter Dump Command (Function 0)	58
	5.13	Event Descriptions (Alarms)	59
6.	MAINTENANCE ...........................................................................		63
	6.1	CFR Maintenance	63
	6.2	Battery Maintenance	63
	6.3	BatteryTesting	64
	6.4	Removing the CFR Front Panel and Cover	65
	6.5	Internal Battery Replacement (CFR 1500 only)	66
	6.6	Troubleshooting Guide	68
	6.7	Troubleshooting Using the SID	70
	6.8	Repair Instructions	72
	6.9	Parts and Ordering Instructions	72
7.	SPECIFICATIONS .......................................................................		73
	7.1	Specifications	73
8.	WARRANTY ................................................................................		75

ii

1. INTRODUCTION

1.1The Alpha CFR

Congratulations on your purchase of one of the most advanced and intelligent Controlled Ferroresonant-Uninterruptible Power Supply (CFR-UPS) in the world! The Alpha CFR is designed to keep your equipment operating, regardless of the condition of your utility power. This means that your vital equipment will no longer be affected by spikes, surges, sags, noise, brownouts, blackouts or other forms of electrical disturbances. Operation is as simple as plugging your equipment into the back of the UPS and switching on the power.

The CFR provides you with a wide range of power management options using your choice of interface devices. The Standard Interface Device displays vital UPS operating parameters, including Alarms, and allows you to manually self-test the UPS. The Intelligent Interface Device (IID) provides you with precise Voltage, Current and Frequency information, plus maintains an on-going record of all Alarm and Line Failure Events. As an active center of communication, your CFR can also be interfaced directly to your computer system to inform you, and your users, of changes in status as they occur.

With distribution networks and service centers located throughout the world, Alpha Technologies is here to back you up. From your date of purchase, Alpha provides complete technical support and prompt, reliable service to ensure that your CFR-UPS provides you with a lifetime of reliable operation.

The Alpha CFR-UPS provides regulated, current-limited, output with excellent isolation and noise attenuation

1

1.INTRODUCTION

1.2The CFR Advantage

ADVANCED POWER PROTECTION TECHNOLOGY

Power protection devices can be judged by the type and quality of power they provide. Alpha CFR Uninterruptible Power Supplies provide continuous, conditioned “computer-grade” AC power to electronic equipment such as Computer Systems, Point of Sale Terminals, Process Controls, Telecommunications, Cable TV Headend, Broadband LAN, Manufacturing Control Systems, Critical Care and Hospital Lab Equipment.

SURGE AND SPIKE REJECTION

Alpha's proven design virtually eliminates surges and spikes. The Alpha CFR UPS provides spike attenuation of 2000 to 1 and meets the requirements of

IEEE 587 / ANSI 62.41.

REGULATION

Unlike many standby power systems, which regulate output voltage only when operating from their battery backup, the Alpha CFR UPS

constantly maintains +1% output regulation without using precious battery power. Even with input voltage fluctuations as great as +10% or -25%, the output remains constant, regardless of load.

ISOLATION

Electromagnetic and Radio Frequency Interference (EMI and RFI) can damage semiconductors and have devastating effects on critical data. The CFR UPS input is totally isolated from the output to provide maximum protection from this type of interference. Measured in decibels (dB) of attenuation, Alpha's CFR achieves up to 120 dB common mode, and 60 dB normal mode.

EXTENDED BACKUP CAPABILITY

Alpha's EBP Series External Battery Packs allow you to greatly extend your backup capabilities and power through long utility outages. Completely selfcontained and pre-wired, simply plug the EBP cabinet into your CFR and forget about it. EBP Series External Battery Packs can also be ordered with an optional, external charger to greatly reduce battery recharge times.

2

1. INTRODUCTION

1.2The CFR Advantage, continued

COMMUNICATIONS AND INTELLIGENCE

Alpha's interchangeable Standard Interface Device and Intelligent Interface Device allows your CFR to become an active part of your communications network providing you with a variety of interface options.

SELF-TEST CAPABILITIES

The CFR has a built-in, self-test function that checks all critical areas of the UPS, including the batteries, to ensure optimum performance. Whenever a problem is detected, the UPS lights a “Service” indicator. Self-test is extremely useful during troubleshooting and maintenance.

PRECISE LOAD AND OVERLOAD INFORMATION

The Alpha CFR provides vital load information to eliminate guess work associated with matching the appropriate load to your unit. The Alpha CFR displays the existing load, and whenever the load exceeds the rated output, an "Overload" indicator is illuminated.

GENERATOR READY

The CFR UPS is equipped with a frequency sense circuit, along with a constant slew frequency synchronization circuit, to provide trouble-free operation with most standby generators.

SAFETY

Designed to meet or exceed the safety standards established by UL, CSA andVDE, the Alpha CFR UPS is one of the safest, most reliable and versatile uninterruptible power supplies available. Our commitment to safety and quality engineering has not only established industry-wide safety standards, but has earned Alpha Technologies international recognition as a leader in power protection equipment.

3

1.INTRODUCTION

1.3Unpacking and Inspection

Carefully remove the UPS from its shipping container. Inspect the contents. If items appear to be damaged or missing, contact Alpha Technologies and the shipping company immediately. Most shipping companies have only a short claim period. Make sure the following items have been included:

1.CFR Series UPS with AC line cord

2.Operator's Manual

3.Any other ordered options

SAVETHE ORIGINAL SHIPPING CONTAINER. In the event the UPS needs to be returned for service, it should be packaged in its original shipping container. If the original container is not available, make sure that the unit is packed with at least three inches of shock-absorbing material to prevent shipping damage. NOTE: Do not use popcorn-type material. Alpha Technologies is not responsible for damage caused by the improper packaging of returned units.

PLEASE READTHE OPERATOR'S MANUAL.

Become familiar with the UPS front and rear panels. Review the drawings and illustrations before proceeding with the UPS installation. If you have questions regarding the safe installation or operation of the UPS, contact AlphaTechnologies.

COMPLETE THE FOLLOWING FOR YOUR RECORDS:

Model #

Serial #

Options

Purchase date

THIS UNIT WAS PURCHASED FROM:

Dealer name

City

State/Province

Zip/Postal Code

Country

Telephone #

4

2. FEATURES

2.1A Tour of the CFR

The Alpha CFR is designed to be easy to use and extremely flexible. The CFR’s interchangeable front panel interface devices provide you with a wide range of information management options. The rear panel accepts a variety of connectors and receptacle plates to facilitate your most demanding communication and powering needs.

2.2The CFR Front Panel

The CFR front panel comes equipped with a Standard Interface Device (SID), or an optional Intelligent Interface Device (IID), to display vital UPS operating parameters. The front panel can be easily removed for service or battery access by loosening the two screws located in the lower grill.

Standard Interface Device

Panel Screws

Fig.1

CFR 1500 Front Panel

5

2.FEATURES

2.3CFR Rear Panel

1.AC Line Cord

The UPS is equipped with a standard, grounded AC line cord.

2.EXTERNAL BATTERY Connector

The connector accepts a standard plug from the EBP Series Battery Pack. Extending backup time is as simple as plugging in the battery pack.

3.BATTERY Circuit Breaker

The battery breaker protects the DC circuit. When the UPS is not in service,

the breaker should be switched OFF to preserve the batteries in the UPS and in the EBP Series Battery Pack, if installed (see section 4.1 “UPS Startup, Test, and Shutdown”).

4.External Ground Lug (Single Point Ground)

The external ground lug provides a single point connection for optimum grounding protection. Always refer to your local electrical codes for prescribed grounding practices.

5.UPS Nameplate Label

The nameplate label contains valuable information relating to the UPS. Always verify input voltage and frequency (i.e., 120 VAC / 60 Hz) before use.

6.RS-232 Serial Connector (DE-9 Female Connector)*

The standard RS-232 serial interface allows for connection to a host computer / dumb terminal for remote monitoring, control and calibration of the UPS. Use a straight through serial cable to connect the UPS to the computer.

7.LAN Interface Connector (DE-9 Female Connector)

The LAN Interface connector provides dry contact status monitoring and output shutdown capability on a DE-9 female connector. Used by basic UPS monitoring software for orderly shutdown of computer networks.

8.External IID Connector (MMJ Connector)*

This connector is used for the optional desktop Intelligent Interface Device (IID) for remote monitoring and control of the UPS (up to 2000 ft.).

NOTE: This port is disabled by the factory unless an internal IID is installed.

9.External Alarms Connector (RJ-45 Connector)

This provides dry contact closure alarm status on a RJ-45 (center keyed) connector, indicating LINE FAIL and LOW BATTERY WARNING.

*NOTE: With the SID installed in the UPS, either the External IID port or the RS-232 port can be activated. The factory default is set for RS-232 operation. With the internal IID option installed in the UPS both por ts are active.

6

2. FEATURES

2.3CFR Rear Panel

10.Exhaust Fan

The CFR1500 contains a rear panel exhaust fan to ensure maximum cooling protection during all modes of operation. The exhaust fan for the CFR1500 RM is located on the front panel.

11. OUTPUT Receptacle Plate

The load (equipment to be protected) connects to the rear panel output receptacles. Styles vary depending upon country, frequency and voltage.

12.AC OUTPUT Circuit Breaker

The resettable breaker provides addional output protection to the load.

6	3	11

	7
			12
	8
	9
	1	4	2
		5

Fig. 2a

CFR 1500RM Rear Panel

8 9

7

6

10

11

3

12

5

2

1	4

Fig. 2b

CFR 1500 Rear Panel

7

2. FEATURES

2.4Information Management Options

Standard Interface Device

The Standard Interface Device provides you with vital UPS operating parameters from front panel LEDs (see section 4.4). The Standard Interface also has a load indicator to help you determine precise loading on your UPS, plus Manual Star t and Alarm Off switches. To ensure optimum backup performance, the Standard Interface comes with a self-test feature which lights the “Service” LED whenever a problem is detected.

									ALARM
									OFF
		ALPHA	T ECHNOLOGIES						MANUAL
									START
					LOW	BATTERY	OUTPUT			LOAD
	LINE	PRESENT			W ARN	I NG			OVERLOAD
	LINE	FAILURE			LOW	BATTERY
								100 %
					SHUTDOW N			75 %
	SERVICE				T E S T
								50 %
								25 %

Fig. 3

CFR Front Panel with Standard Interface Device

8

2. FEATURES

2.4Information Management Options, continued

Intelligent Interface Device(optional)

The Intelligent Interface Device (IID) option is available either as a replacement of the Standard Interface Device (SID) or as a desktop unit for remotely accessing the unit (up to 2000 ft.). The desktop unit comes with an optional modem for accessing the UPS information via a telephone line. The IID front panel provides precise UPS information and guides you through the various menu options which include Ambient Battery Temperature, InputVoltage and Current, Line Frequency, OutputVoltage and Current, Power inWatts, Power Factor, Battery Voltage, Charger Status, and more. The History Log maintains an on-going record of UPS alarms and power anomalies by time, date and type of occurrence. Whenever a UPS alarm condition occurs, such as Line Failure, Low Battery Warning, Low Battery Shutdown or Service, it is displayed by the front panel indicators and recorded in the History Log.

For further information on operation and installation of the IID, please refer to its operator’s manual,“Information Management Using the Intelligent Interface Device.”

		ALPHA TECHNOLOGIES
			03-21-97		08:02:10	TECHNOLOGIES
	1		3			LINEPRESENT
		2		TEST	MUTE	LINE FAILURE
						LOW BATTERY
	4	5	6		ENTER	WARNING
	7	8	9	0	CLEAR	SHUTDOWN
						SERVICE

Fig. 4

Intelligent Interface Device

External Modem (optional for SID eqipped units)

An optional, customer supplied external modem provides access to the unit via a phone line. Service personal can dial up the unit to remotely monitor, control, and calibrate the unit. On specified alarm conditions, the unit can dial an emergency number to notify the system manager via modem of the alarm. The modem option may also be used to page service personnel on critical alarm conditions.

NOTE: The CFR1500 and CFR 1500RM do not support the modem option with an IID.

9

2.FEATURES

2.5Communication / Interface Options

The CFR is equipped with four rear panel jacks for communication and remote interfaces: RS-232 Serial data; LAN Interface; External IID and External

Alarms. Units with the external modem option have a fifth connector for modem connection.

NOTE: With the SID installed in the UPS, either the External IID port or the RS-232 port can be activated. The factory default is set for RS-232 operation.

With the internal IID option installed in the UPS both ports are active.

RS-232 Monitoring / Control Applications

The Alpha CFR-UPS provides a standard RS-232 serial port on a DE-9 female connector. This port may be used to monitor and control the CFR using 1) ASCII terminals, 2) an external modem, 3) UPS monitoring software and 4) SNMP agent devices.

You may use the serial port to interface with a dumb terminal or a personal computer (running a terminal emulation software) to monitor, control, and calibrate the CFR. All you need is a standard off-the-shelf, “straight-through,” RS-232 cable and a terminal. Refer to section 5 “RS-232 TERMINAL COMMUNICATION” for more information. On a SID equipped unit, this port can connect to a customer supplied, external modem (refer to section “4.2 External Modem Configuration” and “4.3 External Modem Operation” for more information).

You may also use the RS-232 serial port to communicate with the intelligent UPS monitoring software running on a host computer or a SNMP agent device connected to your LAN network. Alpha Technologies provides the “AlphaNet C” family of UPS monitoring software and SNMP agents to manage your network requirements. You can use the“AlphaNet C shutdown software” to monitor the CFR in a network environment and to perform an orderly system shutdown when the battery becomes low (during extended line fail situations). AlphaNet C shutdown software informs all workstations of pending power failures and shutdowns and in multi-server networks, AlphaNet can shutdown other servers in the network as well as the workstations. For a full description of the features and capabilities of AlphaNet C shutdown software, refer to its user’s manual or contact Alpha Technologies.

AlphaNet C is available for all major network platforms and operating systems — Novell Netware, SCO Unix, IBM OS/2, IBM AIX, Sun Solaris, Hewlett-Packard HPUX (DAT), and Digital Equipment (OS/F, VMS, and DECNET).

AlphaTechnologies also provides the“AlphaNet CS SNMP Agent Device” to monitor and control the CFR using the SNMP protocol. This provides an interface between the CFR and your network environment and allows you to use your Network Management Station (NMS) to monitor and control the CFR. To obtain detailed information on SNMP management solutions for your CFR refer to AlphaNet CS SNMP Agent User’s Manual or contact AlphaTechnologies.

10

2. FEATURES

2.5Communication / Interface Options, continued

Rear Panel Connectors:

Below are the various communication connectors as they appear on the back of the CFR-UPS. The photographs show the pin numbering for the different connector types.

NOTE: Use only fully shielded cables to make connections to any of the DE-9 connectors (RS-232 port or LAN interface).

RS–232 Serial Connector

LAN Interface Connector

External IID Connector

External Alarms Connector

Pin 5

Pin 1

Pin 6

Pin 9

DE-9 Connector (RS-232 and LAN)

Pin 1

Pin 1

RJ-45	MMJ
(External Alarms)	(External IID)

Fig. 5

CFR-UPS Connector Identification and Pin-out

11

2. FEATURES

2.5Communication / Interface Options, continued

LAN Interface Connector

The Alpha UPS provides a LAN interface port on a DE-9 female connector.

This port may be used to monitor the status of the UPS and shutdown the output using basic UPS monitoring and shutdown software.

Two dry contacts are provided to indicate LINE FAIL and LOW BATTERY status information. The port also accepts a dry contact input or an RS-232 level input to shutdown the UPS output. The shutdown delay, duration, and recovery modes can be configured using the RS-232 ASCII terminal commands (see section 5 “RS-232Terminal Communication”). This port has the following pin out:

Pin out: (DE-9 connector, Female)

1

2 LINE FAIL

3

4 COMMON

5 LOW BATTERY

6 OUTPUT SHUTDOWN

7 GND

8 +12VDC, 5mA max.

9

Fig. 6

LAN Interface Pinout

Using basic UPS monitoring software you can monitor and shutdown the

CFR through this port. In network applications, your UPS monitoring software can perform an orderly shutdown on the network. Basic UPS monitoring software is provided as part of many operating systems and can also be purchased from third party vendors. AlphaTechnologies“AlphaNet C shutdown software” can also operate in the basic mode to shutdown the CFR before its battery reserve is exhausted.

Refer to AlphaNet C Shutdown Software User’s Manual or contact AlphaTechnologies for more information.

12

2. FEATURES

2.5Communication / Interface Options, continued

External IID Connector

The external IID connector provides an interface for the optional desktop

Intelligent Interface Device (IID). This allows the CFR to be remotely monitored and controlled from up to 2,000 feet away. The port uses a proprietary RS-485 protocol and has the following pin out:

Pin 1

1: +12V DC (unreg)	4	: RS-485 Negative
2: +12V DC (unreg)	5	: GND

Fig 7.

External IID connector Pin out: (MMJ Connector, offset key)

External Alarms Connector

The external alarms connector provides two contact closures to indicate

LINE FAIL and LOW BATTERY alarms.

EPO (Emergency Power OFF) Switch (Factory Installed Option)

Pins 7 and 8 of the ALARM INTERFACE connector provide EMERGENCY POWER OFF contacts. A switch contact can be hard-wired to the UPS to completely shut down the system in the event of an emergency, such as a fire.

In an emergency, the switch must be depressed (shorted) for at least 1.5 seconds. The UPS will shut down approximately 2 seconds after the signal is recognized. The switch, connected to pins 7 and 8, must be electrically isolated (up to 1500 VAC isolation is recommended). A system shut down in this manner will open the BATTERY circuit breaker.

CAUTION: When the EPO switch is activated, the AC LINE connected to the UPS input may still be energized. To completely remove the power from the building, the MAIN AC LINE breaker in the building must be switched OFF. Consult your national and local electrical codes for further information.

13

2. FEATURES

2.5Communication / Interface Options, continued

External Alarms Connector,continued

Pin out: (RJ-45 connector, centered key)

Line Present

N.C.

	N.C.
	Battery OK
	N.C. = Normally Closed	EPO
		Emergency
	N.O. = Normally Open
		Power OFF
		Option

Pin 1

Pin out: (RJ-45 connector, Female)

1.	LINE FAIL, COM contact
2.	LINE FAIL, N. C. contact
3.	LINE FAIL, N. O. contact
4.	LOW BATTERY, N. O. contacts
5.	LOW BATTERY, COM contacts
6.	LOW BATTERY, N. C. contacts
7.
8.
					N.O.
	Emergency UPS Shutdown
	Switch (Wall Mounted).
	NOTE: Cable length must not
	exceed 100 feet. Use twisted
	or shielded wire.

Fig. 8

External Alarms Connector Pin-out (with Factory installed EPO Switch Option)

14

2. FEATURES

2.6RS-232 Communication Options

RS–232 Connector

The connection/specifications for the RS–232 serial port vary depending on the installed interface device (i.e., SID or IID option).

Rear Panel RS–232 Port

The RS–232 port on the CFR follows the Data Communication Equipment (DCE) pinout. To connect this port to a terminal or a host computer (which uses a DTE pinout) you need a standard off-the-shelf ("straight-through") RS–232 cable. Depending on your computer, you need a “9 to 9 serial cable” or a “ 9 to 25 serial cable”. However, if you decide to make you own cable, see Fig. 9. The cable shown works with both SID and IID. If your CFR has a SID interface, then you do not have to wire up the RTS and CTS signals. For SID equipped units, the DE9DB25 cable can also be used with an external modem.

Communication Settings with SID:

Baud Rate:

1200

Parity:

None

Stop Bits:

One

Data Bits:

8

Handshaking:

XON / XOFF

Communication Settings

with IID:

Baud Rate:

300 to 9600

Parity:

None, Even, or Odd

Stop Bits:

1 or 2

Data Bits:

7 or 8

Handshaking:

RTS/CTS

DE-9 Male

DB-25 Female

(DTE)

1

1

2

- TxD

2

- TxD

3 - RxD

3 - RxD

4

4

- RTS

5

- GND

5

- CTS

6

6

7

- CTS

7

- GND

8

- RTS

8

9

9

To CFR RS–232

24

Port

25

To IBM-PC Serial Port or external modem

DE-9 Male to DB-25 Female

		1
		2	Tx
		3	Rx
		4
		5 Gnd
		6
		7	RTS *
		8	CTS *
* IID Only		9
Not used with SID
	Internal CFR connections
			Pin 1
	DE-9 Male	DE-9 Female (DTE)
1			1
2	- TxD		2 - RxD
3 - RxD			3	- TxD
4			4
5	- GND		5	- GND
6			6
7	- CTS		7	- RTS
8	- RTS		8	- CTS
9			9
To CFR RS–232		To IBM-PC
Port		Serial Port

DE-9 Male to DE-9 Female

Fig. 9 RS–232 Connector Cable Wiring

(IID to computer or terminal, SID to computer, terminal or modem)

15

2. FEATURES

2.6RS–232 Communication Options, continued

Terminal Emulation Setup

If you are using a PC with terminal emulation software (such as PROCOMM) to communicate with the CFR, use the following setup:

Emulation Type:	VT100 or compatible
Duplex Mode:	Half Duplex
Xon/Xoff Flow Control:	SID: ON, IID: OFF
RTS/CTS Flow Control:	SID: OFF, IID: ON
Line Wrap:	ON
Screen Scroll:	ON
CR Translation:	CR
Back-Space:	N/A (See NOTE)
Break Length:	N/A
Inquiry:	N/A

NOTE: Back-Space and Delete characters are ignored by the CFR. In the event of an incorrectly typed command, you should press ENTER.

Connecting an External Modem

SID equipped units can be connected to an external modem. A shielded null-modem serial cable, DE-9 male to DB-25 male, is required to connect the external modem to CFR. The most common ways to connect are by using one of the following cable/adapter sets:

1.A null-modem cable with DE-9 male to DB-25 male ends (shown below).

2.A null-modem cable with DB-25 male to DB-25 male ends and a 9-25 adapter.

3.A standard “straight-through” cable with DE-9 male to DB-25 female and a nullmodem adapter which has theTX and RX swapped in the adapter.

These cables and adapters are available commercially. Fig. 10 shows the minimum set of connections required for making a null-modem cable. See Section “4.2 External Modem Configuration” to configure the modem and CFR.

DE-9 Male

DB-25 Male (DTE)

Fig. 10:

RS–232 Connector Cable Wiring (SID

to computer, terminal or modem)

To CFR	To Modem
Serial Port	Serial Port

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2. FEATURES

2.6RS–232 Communication Options, continued

Desktop IID RS–232 Port

The RS–232 port on the desktop IID can be used for access with a PC or a network server. This port is not standard and the cable connecting the computer or terminal to the UPS is a non standard type.

1

2

Rx

3 Tx

4

5 Gnd

6

7 RTS

8 CTS

9

External IID connections

Communication Settings

with IID:

Baud Rate:

300 to 9600

Parity:

None, Even, or Odd

Stop Bits:

1 or 2

Data Bits:

7 or 8

Handshaking:

RTS/CTS

DE-9			DE-9 Female (DTE)
Male
1
					1
RxD - 2					2 - RxD
TxD - 3					3 - TxD
4					4
GND - 5					5 - GND
6					6
CTS - 7					7 - RTS
RTS - 8					8 - CTS
9					9
To Desktop IID			To IBM-PC
Serial Port			Serial Port

RS–232 cable to computer or terminal

For the desktop IID use a nonstandard cable type

Fig. 11: RS–232 Connector Cable Wiring (Desktop IID to computer or terminal)

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3. INSTALLATION

3.1Pre-Installation

Do not connect the CFR UPS to a line conditioner, isolation transformer or any other similar type of device. Damage to the CFR UPS and the line conditioning equipment can occur.

Site Preparation

The UPS should be installed upright in a well-ventilated, dust free environment. The weight of the UPS, especially if it has an optional battery pack, is quite heavy (see specifications). Do not place the unit on any surface unable to fully support its weight.

Utility Circuit Breaker

The UPS should be installed on a dedicated circuit with a properly sized circuit breaker. Breaker size can be determined by adding 15% to the maximum input current of the unit (see specifications). For example, the CFR 1500 draws 11.9 Amps of current when configured at 120VAC. By adding 15%, the number becomes 13.7 Amps. In this case, a standard 15 Amp circuit breaker is suitable for use.

Grounding

Since the CFR UPS bonds output neutral to ground (qualifying it as a "separately-derived power source"), proper grounding is critical. Many older facilities may have an electrical system that is incapable of supporting this type of grounding requirement. To ensure optimum performance from your UPS, always install a hardwired ground. A qualified electrician should also inspect the existing wiring in the building prior to installation to verify proper grounding.

Standby Generators

The CFR is equipped with a frequency sense circuit, along with a constant slew frequency synchronization circuit, to optimize operation with most standby generators. Prior to installation, compare the output voltage of the generator to the voltage requirements of the UPS (see CFR nameplate label). If the UPS requires 240VAC input and the generator produces only 208VAC, it will cause the UPS to run continuously off of battery power. This would discharge the UPS batteries and cause the output to fail.

Alpha Technologies recommends using a generator equipped with an electronic speed and voltage control. If a generator equipped with a mechanical governor "speed control" is used, this could also cause the UPS to run continuously in LINE FAILURE mode due to the unstable frequency of the generator.

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3. INSTALLATION

3.2Connecting the CFR (Plug and receptacle)

CAUTION: Installation and wiring should be performed by qualified service personnel in accordance with applicable electrical codes. Verify that the main utility panel is switched off before proceeding. Mark all circuit breakers supplying the UPS.

1.Connect a dedicated ground wire from the GROUND lug on the back of the CFR to an electrical ground point (i.e., wall receptacle gound or a copper water pipe). The wire size must be at least 14 AWG (2.0 mm2) , be rated 75OC minimum, and have green insulation provided with one or more yellow stripes.

NOTE: Most electrical codes require this type of ground connection in case the AC Line power cord is disconnected from the wall. Always consult your local electrical code to ensure prescribed grounding practices.

2.Connect the CFR’s AC power cord to the receptacle.

3.If using an external battery pack, plug its connector into the rear panel of the UPS (see section 3.3).

NOTE: ALL rack mount units require an external battery pack. Before attempting to operate these units without a battery pack, contact Alpha

Technologies for additional information.

4.Start and test the UPS without the load connected (see section 4.1). After testing, switch the unit OFF before connecting the load.

5.Plug the equipment to be protected into the UPS rear panel receptacles.

NOTE: The load should be switched OFF prior to connection.

	BATTERY	UPS
	Circuit Breaker	Receptacle
	AC LINE	BATTERY	UPS
	Circuit Breaker
		Circuit Breaker	Receptacle

AC LINE

Circuit Breaker

GROUND

Lug

AC LINE

Power Cord

CFR 1500RM

CFR 1500

Figure 12 . Rear Panel layout

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