NVent Hoffman DPC Manuale utente

DPC User Manual

Description

The DPC Series consist of Power Distribution Units and Outlet Control and Monitoring with a built in web server in a self−

contained unit. Web pages, including graphs, are generated from the unit, and monitor power and environmental conditions within

the cabinet. No software other than a web browser is required, and several data formats are available. Built in sensors include

Voltage, Current, and calculated Power Factor. Optional external sensors and network cameras are available and can be added.

Specications (See Unit Label for Ratings)

Networking: HTTP, HTTPS (SSL/TLS), SMTP, POP3, ICMP, DHCP, TCP/IP, NTP, FTP.

Data Formats: HTML, SNMP, CSV/Plain Text, Telnet, WAP, PDA formatted HTML, XML.

EMC Verication: Class A digital device. This device complies with part 15 of the FCC Rules. Operation is subject to the

following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference

received, including interference that may cause undesired operation.

Warning! Changes or modications to this unit not expressly approved by the party responsible for compliance could void the

user’s authority to operate this equipment. FCC requirements: The ferrite core shipped with the unit must be placed around the

Ethernet cable close to the PDU.

Receptacle Ratings: NEMA 5−15R 125 Volts, 15 Amps

NEMA 5−20R 125 Volts, 20 Amps

NEMA 6−20R 250 Volts, 20 Amps

Model Options

Model

Power Distribution

Remote Display Compatible

# Remote Sensor Ports

Outlet Level Switching

Outlet Level Monitoring

Volts

Amps

Power

DPC X X 2, expandable to 15 X X X X

Installation

1. Using appropriate hardware, mount PDU in rack or cabinet.

2. Plug PDU into an appropriately rated and protected branch circuit receptacle.

3. Connect PDU to network using Ethernet connection.

4. Connect any External Sensors (Optional) to the unit.

5. Plug in devices to be powered by PDU.

6. Power on devices to be powered by PDU. Sequential power up is recommended to avoid high inrush current.

Service and Maintenance

No service or maintenance is required. Do not attempt to open the PDU, warranty will be void. No user

serviceable parts inside

Setting an IP Address

The DPC units have a permanent IP address for initial setup and access to the unit if you forget the address you assign to it.

The Conguration page allows you to assign the network properties or use DHCP to connect to your network. Access to the unit

requires the IP address to be known, so use of a Static IP or reserved DHCP is recommended. The permanent address is shown on

the front of the unit.

IP Address: 192.168.123.123

Net Mask: 255.255.255.0

Gateway: 192.168.123.1

First Time Setup:

1. Connect the DPC to your computer using a crossover cable or a hub.

2. On your computer, go to ”Start > Settings > Control Panel > Network and Dial Up Connections”

3. Right Click on ”Local Area Connection” and select ”Properties”

4. Select the option to “Use the following IP address” and enter:

IP address: 192.168.123.1

Subnet mask: 255.255.255.0

Default gateway: Not Needed

5. Click ”OK” twice

6. You can now access the unit using your web browser at the permanent IP address, http://192.168.123.123

Typical Network Card Settings

for PC or Laptop to connect to

backup IP address. Note that

a Default Gateway is not needed

nor recommended.

Remote Outlet Switching/Monitoring Conguration

The DPC is equipped with individually switchable outlets. Total current for each group of outlets is available on the Sensors page

and on the Control page.

The unit will list all available outlets under “DPC Conguration” on the Control page. Each outlet has ve elds associated with it:

1. Name: A friendly name to easily identify what is plugged into the outlet, for example “Mail Server.”

2. URL: Enter a URL associated with the equipment plugged into the outlet. This URL will appear as a clickable

link at the top of the Control Page next to the outlet status information.

3. Power−On Delay: Delay from the time the “On – Delayed” action is executed until the outlet will turn on.

4. Power−Off Delay: Delay from the time the “Off – Delayed” action is executed until the outlet will turn off.

5. Reboot Delay: Delay from the time the “Reboot” action is executed and all selected outlets have turned off

until the outlet will turn back on.

The Max Group Amps (MGA) setting is a protective feature designed to help eliminate downtime due to overloading of a power

strip. The unit will not allow any more outlets in the same group to turn on once the MGA threshold has been reached. For

example, if MGA is set at 10A, there are 3 outlets enabled in Group A and the total draw for Group A is 9A, the unit will allow a

fourth outlet to turn on. However, if after enabling the fourth outlet, the current draw were to rise to 11A, no more outlets in Group

A would be allowed to turn on. If the total draw drops below 10A, another outlet will be allowed to turn on.

NOTE: DPC will not shut off any outlet automatically, even if the MGA has been exceeded. It is still possible to overload the strip if

the load on any outlet is increased after the outlet is turned on. It is advisable to set an alarm on each group based on the MGA as

an additional warning of potential problems.

Remote Outlet Switching Control

There are six possible actions for any given outlet, available from the “Action” drop down box on the Control page:

1. On – Immediate: Turns on all checked outlets immediately.

2. On – Delayed: Turns on all checked outlets subject to the “Power On” delays entered at the bottom of the

Control page.

3. Off – Immediate: Turns off all checked outlets immediately.

4. Off – Delayed: Turns off all checked outlets subject to the “Power Off” delays entered at the bottom of the

Control page.

5. Reboot: Turns off all checked outlets immediately and turns them back on subject to the “Reboot” delays

entered at the bottom of the Control page.

6. Cancel Actions: Cancels any actions currently in progress on the selected outlets.

To perform an action, select the check box next to the outlets needing attention, select an action from the drop down box and

click the “Execute” button. A dialog box will appear asking for conrmation of the selected actions. Click OK to allow the action to

proceed or click Cancel to make changes.

Internal Sensors

All internal sensors are measured every 5 seconds. External sensors are measured every 10 to 30 seconds depending on the #

of devices connected. Sensor data collected by the Hoffman Smart unit gives useful trend analysis data. While all values are not

absolute in relation to a known unit, trend analysis of the data allows users to view changes in data value over time. Analysis of

the change in value of the data can lead the user to useful conclusions about what is happening in the monitored environment.

Volts – Measures instantaneous RMS voltage.

Volts (Peak) – Reports the highest reported voltage since the last time the data was updated, typically every 5 seconds.

Amps – Measures instantaneous RMS current.

Amps (Peak) – Reports the highest reported current since the last time the data on the screen was updated, typically every 5 seconds.

Real Power – Average of instantaneous voltage and current over the last 1.5 seconds.

Apparent Power – The product of instantaneous RMS Voltage and RMS Current. This is the value used by circuit breakers.

Power Factor – The ratio of Real Power to Apparent Power.

Amps Group – Reports the group SUM of individual receptacle readings.

Connecting Optional RJ Remote Sensors

Plug and Play Remote Sensors may be attached to the unit and in some cases splitters may be required to add additional sensors.

Each sensor has a unique address and is automatically discovered and added to the webpage. Note: the display order of the

sensors on the web page is determined by the internal ID of each sensor, a customizable friendly name is available for each on the

Display page.

The supplied wires can be extended or shortened using Cat 3 wire and RJ12 connectors. Note: the sensor wire has six conductors,

wiring must be straight−through: reverse polarity will temporarily disable all sensors until corrected. The sensors use a serial

communication and are subject to network signaling constraints dependent on shielding, environmental noise, and length of wire.

Typical installations should allow runs of up to 600 feet of sensor wire.

Optional RJ Remote Sensors

DST Temperature

DSTA Temperature / Airow

DSTAH Temperature / Airow / Humidity

Custom lengths available upon request at 763.422.2661 or [email protected]

Graphing and Displaying Data

All data collected by the unit can be graphed. The Log page allows the user to select graphed content and sampling rate, selected

items will be displayed on LCD (on units where it is present, or optional Remote Display). The amount of data and sample rate

determine the graph time span. This period is calculated and displayed on the Log page. When the onboard memory lls up,

old data will be deleted, making room for new data. All settings are stored in case of a power loss or reboot. A sample rate of

30 seconds or longer is recommended to allow the unit to gather all sensor data before graphing. Sampling rates of 60 to 120

seconds should provide ample resolution for most situations.

Setting Alarms

For all data collected by the unit, the user can set high and low limits. When these limits are exceeded the user has the option of

sending an email, SNMP trap, activate the audible alarm (on units where it is present), or any combination of the three. The SNMP

traps can be sent to 4 IP addresses. Some analysis of each unit is recommended before setting alarm limits. Once each unit has

been operating in the environment under normal, steady state conditions for several hours, alarm set points may be chosen. By

allowing the unit to come to steady state before setting alarm set−points, the user may make more informed decisions about the

normal variation in conditions and choose alarm set points that will inform when conditions are truly changing without triggering

numerous false alarms. Aside from using historical graphs to make alarm set−point decisions, the user may choose to download

raw log data from the logs page to see specic historical data records and use this data to help set useful alarm set−points. Note:

Changes in settings are processed less frequently and depending on the number of attached devices may take several minutes

to respond. Rapidly resetting alarm values may not provide desired results. Allow up to 2 minutes after making a setting change

before modifying. Test alarms can be sent for each measured value via the Alarms page.

Optional DRD Remote Display

This small module can be mounted in an accessible spot inside or outside the rack or cabinet. A LCD display scrolls values of

items selected on the Logs page. The connection to the unit is made with a 10’ handset type 4−conductor cable. The buzzer can

be activated for alarm states to identify problems. An alarm reset is located next to the display to silence the buzzer when the

problem is located. The LED indicator stays on in alarm state even after the buzzer has been silenced.

Optional IP−Enabled Web Camera

The unit has been designed to allow up to 4 IP Network Cameras to interface with the webpage. To enable this feature the camera

must be set to allow anonymous access. The unit Conguration page allows you to add the IP address of the camera and specify

the model. This live image will appear on the Sensors page and will update with the webpage. Clicking on the picture itself will

take you to the IP address of the camera. Each device currently supports up to 4 cameras simultaneously.

Supported Cameras: Axis 205/206, D−Link DCS−900, D−Link DCS−950/G, D−Link DCS−5300/G

Other Formats

• PDA Displays data in a small screen format for a PDA.

• WAP Wireless Application Protocol, displays text values for wireless clients such as mobile phones and some PDAs.

• XML Extensible Markup Language, displays values in XML format.

• MIB Management Information Base, downloads the MIB to be used for SNMP applications.

Accounts, Passwords and Security

The unit is accessible via a standard, unencrypted HTTP connection as well as an encrypted HTTPS (SSL) connection. The user

may opt to enable access via HTTP, HTTPS, or both HTTP and HTTPS. It is not possible to disable the web interface completely.

The unit has a View−Only account, a Control Access account, and an Administrator account. When activated the Administrator

account limits access to any web pages with conguration settings. When left blank no username or password is required to

adjust the conguration. When activated, the View−Only account requires a username and password to view sensor data. The

Control Access account allows access to the Control page, allowing conguration of attached switch−able power distribution

units. The Administrator account must be password protected to activate the View−Only and Control Access accounts. The user

may choose any name for the Administrator, Control Access, and View−Only accounts consisting of alphanumeric characters,

spaces, and underscores, except for “root” and “admin”. These account names are disabled for security reasons and cannot be

re−enabled.

WARNING! Record your password. Loss of password will require the unit serial number and contact of customer service

to be recovered.

Setting Time and Date

The unit comes precongured with the IP addresses of two military NTP servers and set to the Central Time Zone (−500 GMT).

Should a local time server be preferred, enter its IP address into the box and click the “Save Changes” button. Should the user

need to revert back to the military time servers, simply clearing the time server addresses and clicking “Save Changes” will set the

time servers back to the defaults. The unit attempts to contact the timeservers while booting up. If a timeserver is unavailable, all

log time stamps will present time as the number of seconds since the unit was powered up. Note: that the time and date are not

adjusted for daylight savings time. Setting the time zone offset forward and backward an hour will cause a gap or overwriting of

logs, respectively.

Telnet

When using Telnet to connect to the unit, the Administrator username and password from the Conguration page will be required.

If the Administrator user is not congured, the Telnet server will be enabled, but logins will be impossible. The Telnet server can

be disabled on the Conguration page. Available Telnet commands can be found by using the command “help”. The following are

some commonly used Telnet commands:

Airowset – Resets the internal airow sensor such that the current ow is measured as ‘20’.

Exit – Terminates the Telnet connection.

Reboot – Reboots the controller board remotely. Power distribution is not affected.

Report – Displays a report of all connected sensors and their current values.

Time – Displays the current date and time according to the unit if the unit has contacted an NTP server.

System info – Displays general information about the unit, including: Unit type, Software version and MAC address.

SNMP

The unit is accessible via SNMP and can be congured to send out SNMP traps to a maximum of 4 IP addresses when alarm

conditions are met. The community string defaults to “public,” but is user−customizable on the Conguration page. The MIB

is downloadable via a link at the top of the web interface. The MIB is walk−able via any SNMP browser, but will have to be

imported before doing so. The SNMP service can be disabled via the Conguration page. A test SNMP trap can be sent from the

Conguration page.

E−Mail

The unit is capable of sending e−mail to a maximum of 5 e−mail addresses when alarm conditions are met. E−mail settings are

on the Conguration page. An SMTP server, a “From” address and a “To” address are required to send email alerts. Some e−mail

servers are password protected and will require a POP server, username and password for validation. In most cases, the username

does not have to match the “From” address, but does need to be a valid user on the POP server. Microsoft Exchange servers will

have to be set to allow SMTP relay from the IP address of the unit. A local network administrator will have to change this setting.

A test email can be sent from the Conguration page.

Daily Armation

Daily Armation allows the users to choose a frequency with which the unit will forward a full status report to their e−mail. This

status report can come hourly, every 2, 4, 8, or 12 hours, or once daily (24 hours). This feature allows you to know that everything

is still running, and gives you an update on all attached devices as well. Set−up of this feature is on the Conguration page under

”Status Reports”.

Owner Contact Information

Owner contact information can be entered on the Conguration page and will display at the bottom of the web interface.

Firmware Upgrades and Additional Information

New rmware upgrades and additional information is available at http://hoffmanonline.com/pdu

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