Mounting the instrument
Operating Manual EM-PQ 2300
11
In front of the casing
, from left to right
Run (green)
Instrument in operation, flashes at 1-second intervals.
Bus (yellow)
Indicates access to the FRAKO Starkstrombus® or the Modbus.
Alarm (red)
Indicates presence of alarm signals and instrument faults.
Digital Out 1 (blue) Lights up when digital output 1 transmits a signal
Digital Out 2 (blue) Lights up when digital output 2 transmits a signal
In the base near the Display connector
Overcurrent (red)
Lights up if the output to the Display instrument is overloaded.
4. Mounting the instrument
4.1 Suitable location
The EM-PQ 2300 is intended for installation in stationary, weather-protected control cabinets and enclosures. We
recommend installation in a metal cabinet or a shielded enclosure to protect against adverse environmental
factors such as corrosion, pollution and stray radiation.
Provided that high quality EMC-compliant connecting cables are used and the instrument is installed in a metal
cabinet or a shielded enclosure, it can be reasonably assumed that the emission limits of EN 55011/22 Class B
(office and residential area) will be complied with.
The EM-PQ 2300 Ethernet connection is at the top of the casing. A free space of at least 50 mm must be allowed
above the EM-PQ 2300 because of the minimum allowable bending radius of the Ethernet cable and the type of
connector used.
4.2 Installing the instrument
The EM-PQ 2300 is intended for fixed installation in control cabinets or
enclosures; see
Section 4.1 Suitable location, page 11
.
The instrument has a standard casing designed for mounting on a
35 mm DIN top hat rail (TS 35 as per EN 50022). A rail length of
161.6 mm is required, any desired rail orientation being permitted.
The electrical connections between several suitable devices of the
FRAKO Energy Management System can be simplified with DIN rail bus
connectors offered separately by the manufacturer,
Phoenix Contact
,
under the order code
HBUS 161,6-16P-1S BK, Article No. 2278555.
These are fitted in the DIN top hat rail underneath the EM-PQ 2300
before it is snapped over the rail. See
Section 3, Instrument description,
page 10.
This simplifies the interconnecting wiring of the devices.
Figure 3: Dimensions
CAUTION!
It is not permitted to operate the instrument other than in a dust-tight control cabinet. In dusty
environments, the ventilation slots in the casing can become blocked, resulting in overheating of
the instrument or even a fire.
Only install the instrument in a control cabinet that guarantees a dry, dust-free interior
environment.
DANGER!
The PQC must not be installed in a hazardous zone, as its switching operations generate sparks
that could ignite flammable gases.
Only install the instrument in areas where there is no danger of a gas or dust explosion.
The instrument is mounted by snapping it over a DIN top hat rail (see example in Figure 4).
