Operation Control unit

Figure 5-2 Front view of control unit

The control unit is equipped with four push buttons: CANCEL, , , and (ENTER).

The arrow keys are used to go up and down in the menu hierarchy, to adjust limits and to select options. The key is used to go one level deeper to the menu system and to confirm adjustments. The CANCEL key takes you one level up in the menu hierarchy in addition to cancel the adjustments.

To adjust the alarm limits, use the arrow keys to select "adjust limits". Press to enter the sub menu, and once more to select "alarm limit". By using the and keys the various alarm limits can be checked. To adjust a limit: select the correct limit and press . The correct password must be entered before a new value can be set.

The password is set to 1234 by default, but can be changed. Use the keys to set and to confirm each digit. CANCEL can be used to correct a digit. When the correct password is entered it stays active for approximately 2 minutes.

The adjust mode is indicated by a : (colon) in front of the value and a steady cursor behind. Use the keys to adjust the alarm limit and press to confirm the value or CANCEL to revert to the previous value. To return to main menu, press the CANCEL button. If the PCS is left unattended the display will return to main menu automatically after 2 minutes. The backlight will be turned off after 2 minutes without any key pressed. Pressing any key will turn it back on.

System LED’s

5.5 Connecting to PC

Connect to a PC with PowComTM _{installed. The BAUD rate in the PowCom}TM _{COM port settings must be}

set to the same as the PCS is set to (9600 is the default baud rate of the PCS). If modem is to be used, connect modem before initiation. Push INIT MODEM in the miscellaneous menu.

Pin out of the RS 232 connector:

5.6 Menus

5.6.1 Show voltage and currents

The control module normally shows system voltage and battery current. Pressing the arrow will show system voltage and distribution current, pressing once more will show system voltage and rectifier current.

5.6.2 Show alarms

This item displays the current alarm status. If there are several alarms use the keys to scroll through the various alarms. New alarms or disappearing alarms will be updated immediately on the menu. Some alarms have to be reset manually, by pressing at the show alarms display.

The alarms to be reset are: Battery failure and symmetry failure.

5.6.3 Show messages

This item displays any messages. If there are several messages use the keys to view the various messages. New or disappearing messages will be updated immediately on the menu.

5.6.4 Show data

This menu is used to display various measurements. Module data

This menu shows information from the individual rectifier modules. Use the keys to select the module number. Press enter to view another page of information. Four pages of information are available for each module. The information available is communication status, module current, mean current, module temperature, module measured voltage, Module OVP limit, alarm information, Serial number and module software version number. Module alarms are indicated by 3 letter flags. The meanings of these are as follows.

MNS - No input mains. LOW - Output voltage low

OFF - No operation, caused by no mains or other failure OVS - Overvoltage shutdown.

FAN - Fan failure, will cause the module to go off and OFF to be set. CUR - Current sharing fault. Current deviates too much from average.

TMP - Temperature is high, will eventually cause the module to go off and off to be set.

Pin Function

2 Receive

3 Transmit

Ext. measurements

Up to 8 "external measurements" can be shown. These measurements are not standard measurements. Both text and inputs are system specific and are defined in the configuration. If there are not configured any measurements NA will be shown when enter is pressed.

Dist. current

Show the distribution current from individual distributions. Up to 64 distributions can be shown. Require distributions with Distribution interface (PDU-IF). If no such distributions are available NA will be shown when enter is pressed.

Symmetry voltage

The symmetry voltage for each battery branch is shown.

5.6.5 Select/adjust U1-U4

This menu is used to select one of the references for the 4 charge modes, U1 - float voltage, U2 - boost voltage, U3 - battery test voltage, U4 - spare. Also use to adjust these references. The voltage references can be adjusted in steps of 0,1V.

z U1 Normal. The U1 reference is shown, press to change U1 (The float charge voltage) z U2 Boost. The U2 reference is shown, press to change U2 (The boost charge voltage) z U3 Test. The U3 reference is shown, press to change U3 (The Battery test voltage)

z U4 Spare. The U4 reference is shown, press to change U4 (The spare voltage) (Not normally used)

5.6.6 Adjust limits

The menu has the following items: alarm limits, boost parameters, battery test and temperature compensation. Parameters can be set/adjusted by entering the different sub-menus.

Alarm limits.

This menu contains High voltage, low voltage, Over voltage shutdown limit, low voltage disconnect, partial low voltage disconnect limits, load reconnect limit, high load limit, high temperature limit.

Boost parameters.

This menu contains the limits for boost charging control. See section 5.7 Boost charging Battery test.

This menu contains the limits for battery test. See section 5.8 Battery test Temperature comp.

This menu turns the temperature compensation on and off, and set the compensation factor. Batt. Cur. Limit

This menu turn the battery current limiting on and off, and set the limit.

Note! Current limiting is not available on all systems.

Sys. specific limits

This menu show up to 8 system specific limits. These are limits that are non-standard limits that are defined in the configuration. The description and function of these limits are defined in the system configuration. If there are not configured any limits NA will be shown when enter is pressed.

5.6.7 Miscellaneous

The miscellaneous menu makes it possible to set the date and time, change password, view version information, initialise modem, and show symmetry voltages and temperature.

Set time

The clock is shown. Press to adjust the clock. The clock is battery backed and will keep the time even if the PCS is turned off.

Relay test

Press to check the alarm relays. The relays will be activated one and one. Use the keys to select witch relay should be activated.

Alarm blocking

Allows the alarm relays to be disabled during maintenance. One alarm relay will normally be active as long as the alarms are blocked.

Version

Show the PCS software version, configuration number and serial number. Set new password

Choose "set new password" from the "miscellaneous" menu. Press , enter the old password and press . Enter the new password and confirm by pressing . To avoid mistyping the new password has to be entered once more. Confirm by pressing .

Shunt A

The nominal current of the battery shunts. Shunt mV

The nominal voltage of the battery shunts. Network address

Several PCS's may be connected together in a multidrop RS232 network. Each module then needs to have a unique address between 2 and 255. The address may be set here.

Baud rate

Select the baud rate for the RS232 serial port of the PCS. Either 2400 or 9600. Init modem

Press enter to send a string to init a modem. Additional initiation may be required in beforehand depending on the modem.

Accept removed parts

Since the PCS communicates with the modules and units by a serial link, removing a module or unit will appear to the PCS as a communication failure. This will cause an error message. If the module or unit is intentionally removed the PCS must be told that it is OK that the module or unit is gone. Selecting this menu and reply YES to the question will cause the PCS to assume that all not communicating modules and units are removed purposely.

Note! Do not do this if there is an actual communication alarm caused by a fault in a module or unit. Reset to defaults