DEMA CPM 310 G User Manual page 208

Technical Characteristics
Programmable Input Setting Options (Continued)
Delaying Sel.1
Start Wave Record
Cold Load Pickup
Spring Failure
Change Set.Group
Block ARCL
Reset %Θ
Trip Circuit Sup.
Reset RL1-RL6
Reset LED
Pressure Trip
Buchholz Alarm
Buchholz Trip
Temp.Alarm
Temp.Trip
Blocking Sel.2
Delaying Sel.2
1.5 RS485 Serial Communications Port
Connection Cable
Connection Point
Communications Protocols
Communications Speed
Insulation Level
1.6 USB Serial Communications Port
Connection Type
Connection Usage
Connection Point
Communications Protocols
Communications Speed
1.7 Command Interface Buttons
S1, S2, S3, S4, S5 Buttons
Reset Button
Used for increasing trip delays for the selected protection functions while the
protection group is set to "1".
Used for triggering a 3 second record of the current waveform.
Used for increasing the threshold settings of the selected protection function for a
given time.
Supervises the CB charging spring via auxiliary contacts.
Used for altering between protection settings groups 1 and 2.
Used for disabling auto-reclose cycles.
Used for resetting the thermal image.
Supervises the trip circuit of circuit breaker.
Resets all programmable outputs.
Used for resetting programmable LEDs and alarm records.
Evaluates the pressure trip auxiliary contact information.
Evaluates the Buchholz alarm auxiliary contact information.
Evaluates the Buchholz trip auxiliary contact information.
Evaluates the thermometer alarm auxiliary contact information.
Evaluates the thermometer trip auxiliary contact information.
Used for blocking selected protection functions while the protection group is set to
"2".
Used for increasing trip delays for the selected protection functions while the
protection group is set to "2".
2-wire screened communications cable.
4 terminals at the rear side of the device: reference, sending, receiving and
termination resistance terminals.
DEMCOM (DEMA communications protocol), MODBUS and IEC60870-5-103.
min. 1,200 baud, max. 38,400 baud.
2000 V / 1 min.
Between CPM 310 G and PC.
USB serial port is used for establishing communications between CPM 310 G and a
PC for using DEMA DigiConnect software.
On the front side of the relay, USB B-type connector under the cover.
DEMCOM (DEMA communications protocol) and MODBUS.
min. 1,200 baud, max. 38,400 baud.
Multifunctional buttons, functioning as described on the screen for each menu.
Reset button has cyclic duty over LED, Alarm and Ampermeter menus. While at
any menu; first hit heads to the "Programmable LEDs" menu, second hit heads to
the "Alarm Menu" if any alarms are available, or to the "Ampermeters" menu if
there are no alarms to display. Hitting further returns to the initial menu. The reset
button is reachable either the cover is closed or open.
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