Installation manual

UNIPOWER

Installation manual PQ Secure

have the option of capturing various types of power quality events, for example switch

connections, relay status, etc. The digital inputs can also be used for monitoring other events,

for example when the door of a particular station is opened or closed, the temperature, status,

etc. The digital inputs are easily configured using the PQ Online program.

C. Connection for the Graphical display unit, which can be supplied as an option.

D. RS-232 connection for direct communication with the Computer. This connection is

primarily used for configuration of the unit at site, and can always be used regardless of the

other communication options.

E. RS-232 connection for communication with External modem.

F. Connection for RS-485 communication, which is available as an option.

G. RJ-45 connection for 10-BaseT Ethernet communication, which is available as an option.

H. Connection for Power Supply. If a suitable DC voltage is available this is preferred choice. If

there is no station/internal battery backup, Unipower recommends that you connect the

instrument to an external UPS type battery source in order to prevent power failure

disturbances. The cable connected to the power supply unit of the UP-2210 unit must be

fitted with a 2A fuse. If an AC supply is used, the phase is connected to the + input and the

neutral conductor is connected to the - input on the UP-2210 recorder. Always ensure that the

UP-2210 unit is grounded, using the input marked with the ground symbol.

I. UP-2210 recorder has 4 differential Current channels (the range is stated on the front label).

The current channels are designed for direct connection to the existing instrument transformer

(CT) secondary side. It is important to connect the current channels with the correct polarity;

otherwise the power charts displayed by the recorder will be incorrect. Connect the current

channels in accordance with the wiring diagrams later in this manual.

J. UP-2210 recorder has 4 differential voltage inputs (the range is stated on the front label).

There are two inputs for each channel, with polarities marked as plus (+) and minus (-). The

voltage inputs are designed for the direct measurement of line-to-neutral voltages in low

voltage networks as well as for connection to instrument transformers (PT) secondary circuit

in high voltage networks. Remember to connect the polarities correctly, because incorrect

polarity on the voltages channels will shift the voltage signal through 180°, affecting the

power calculations. Connect the voltage channels in accordance with the wiring diagrams

later in this manual.

K. RJ-6/4 connection for communication with Internal modem, which is available as an option.

L. USB connection for communication with external PC.

Note: When connecting to CT or PT existing ones are preferably used. For new installations

we recommend same type/class as being used in metering circuits.