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OLM®2 switch monitor parameter data
Status data
Each time a read data command is sent to a switch monitor is a status input data record returned. A status data record consists of:
Record Number
An internal counter to keep order of the readings number.
Date/Time
Date/time of reading.
Status
Common status and for alarm events the error code.
Tamb (°C)
Usually used for the ambient temperature
Tint (°C)
Usually used for the switch cabinet temperature
Heater Current 1 (A)
Heater current monitoring option 1
Heater Current 2 (A)
Heater current monitoring option 2
Pow (V)
The power line voltage used for the switch monitor itself
U1 (V)
Optional power voltage monitoring 1
U2 (V)
Optional power voltage monitoring 2
SF6 Density dens1 (kg/m3)
Gas density in chamber 1
SF6 Density dens2 (kg/m3)
Gas density in chamber 2
SF6 Density dens3 (kg/m3)
Gas density in chamber 3
Gas Temp T1 (°C)
Gas temperature in chamber 1
Gas Temp T2 (°C)
Gas temperature in chamber 2
Gas Temp T3 (°C)
Gas temperature in chamber 3
Status a
State of status contact a, (low/high)
Status b
State of status contact b, (low/high)
Status spring
State of status contact spring, (low/high)
Status press
State of status contact press, (low/high)
Status alarm
State of status contact alarm, (low/high)
Status block
State of status contact block, (low/high)
Status res1
State of status contact res1, (low/high)
Status res2
State of status contact res2, (low/high)
Operations
Number of switch operations done
Operations Motor
Number of motor operations done
Oil pressure
0 – 40 MPa hydraulic oil pressure
Spare
Not used
Alarm data
An alarm record consists of a status data record, of the alarm moment, with the status code. Indicating the alarm cause. The structure of the data is the same as for the previous status data. A switch monitor keeps the latest 32 alarm records in its memory.
Operation Data
Each time a switch operation is performed is a record of its data created and saved. A switch monitor keeps the last eight operation records in its memory. An operation data record consists of the following numerical values:
Record Number
An internal counter to keep order of the records.
Date/Time
Date/time of operation.
Status
Common status as operation types and coil
Tamb (°C)
Usually used for the ambient temperature
Tint (°C)
Usually used for the switch cabinet temperature
Stroke (rad, m)
Mechanical stroke of the switch
Operations
Switch operations counted at close
Oil pressure
0 – 40 MPa hydraulic oil pressure option And the following time vector values. 250 ms (500 values *0.5 ms):
Pow (V)
The power line voltage used for the switch monitor itself
U1 (V)
Optional power voltage monitoring 1
U2 (V)
Optional power voltage monitoring 2
Mechanical Travel (rad, m)
Switch operation travel
Coil Current (A)
Coil current for close+trip1+trip2
Line Current 1 (A)
Line current monitoring L1
Line Current 2 (A)
Line current monitoring L2
Line Current 3 (A)
Line current monitoring L3
Status a
Status contact a position
Status a
Status contact b position
Status spring
Status contact spring position
Status press
Status contact press position
Status alarm
Status contact alarm position
Status block
Status contact block position
Status res1
Status contact res1 position
Status res2
Status contact res2 position
Status close trig
Status contact close trig position
Status trip trig
Status contact trip trig position
Status trip2/motor trig
Status contact trip2/motor trig position
The following value is showed but is only used internally for contact-time supervision:
Operation Time (s)
Calculated contact time
Motor operation data
Each time a motor operation is performed is a record of its data created and saved. A switch monitor keeps the last sixteen motor operation records in its memory. A motor operation data record consists of the following numerical values:
Record Number
An internal counter to keep order of the records.
Date/Time
Date/time of motor operation.
Status
Common status as operation type
Tamb (°C)
Usually used for the ambient temperature
Tint (°C)
Usually used for the switch cabinet temperature
Stroke (rad, m)
Full travel of a spring accumulator
Spring Time (s)
Spring contact low time
Operations Motor
Counted at each motor start
Oil pressure
0 – 40 MPa hydraulic oil pressure option And the following time vector values. = (20, 40, 80, 160) s, = 200 values *(0.1, 0.2, 0.4, 0.8) s:
Motor Current (A)
Motor coil current
U1 (V)
Optional voltage monitoring
Spring Travel (m)
Optional spring travel monitoring
Status a
Status contact a position
Status a
Status contact b position
Status spring
Status contact spring position
Status press
Status contact press position
Status alarm
Status contact alarm position
Status block
Status contact block position
Status res1
Status contact res1 position
Status res2
Status contact res2 position
Status close trig
Status contact close trig position
Status trip trig
Status contact trip trig position
Status trip2/motor trig
Status contact trip2/motor trig position Note: All time vectors is synchronized with the Operation start signal.
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OLM®2 hardware specification summary
Number of status and timing inputs
(a, b, spring, press, alarm, block, res1, res2) 8
Recommended source voltage (24 – 250) VDC
Contact voltage level (mean) 15 V
Hysteresis voltage ± 1 V
Voltage level accuracy ± 1,5 V
Contact input reaction time < 100 µs
Number of voltage supervisory inputs
(pow, u1, u2) 3
Measuring range FS (extensible with external resistor) (0 – 280) VAC/ ± 390 VDC
Accuracy 0,5 % of FS
Number of coil supervisory inputs
(close, trip1, trip2) 3
Working range trig input (24 – 250) VDC
Trig voltage level 15 V
Trig voltage level accuracy ± 1,5 V
Trig input reaction time < 100 µs
Coil current input working range FS (shunt or ct) ±100 mV
Coil current input accuracy 0,5 % of FS
Operation coil supervisory input trip2 can be used for motor current
Number of travel transducer inputs
(trvl) 1
Digital input for digital position encoder, receiver type RS422
Analog input for position encoder measuring range FS (0 – 5) V
Analog input accuracy 0,5 % of FS
Analog input impedance 1 Mohm // 45 pF
Power source for both 5 V, = 100 mA
Analog input can be used for 4 – 20 mA sensor trough an external 250-ohm resistor
Number of temperature sensor inputs
(Tint, Tamb) 2
Sensor type PT100 class B
Measuring range FS (-55 - +85) °C, (-67 - +185) °F
Measuring accuracy ± 1 °C, ± 2 °F
Number of line current inputs
(ct1, ct2, ct3) 3
Measuring range FS (0 – 100) mV AC
Measuring accuracy 1 % of FS
Inputs for ct2 and ct3 can be used for heater1 and heater2
Number of Trafag 8774 SF6 density & temp
sensor inputs 3
Measuring range density FS (dens1, dens2, dens3) (0 – 50) kg/m3 SF6
Accuracy density ± 2 % of FS
Measuring range temperature FS (T1, T2, T3) (-40 - +85) °C, (-40 - +185) °F
Accuracy temperature ± 3 % of FS
Power output total for all three 17 V DC, = 100 mA
Number of communication ports
(com) 1
Hardware interface type RS 485
Communication rate = 115 kbps
Communication protocol OLM®-bus
Alarm
Alarm out contacts (alarm1 (no), alarm2 (nc)) 2
Contact data 230 VAC, 1 A
Power
Power supply input AC (pow) (85 – 265) V
Power supply input DC (pow) (100 – 300) V
Power consumption < 12 VA
Voltage supervisory channel pow is internally connected to power input
Environment
Ambient temperature operating (-20 - +60) °C, (-4 - +140) °F
Ambient temperature storage (-40 - +70) °C, (-40 - +158) °F
Relative humidity, non-condensing (0 – 95) %
Encapsulation class IP20
Mass
Dimension l*w*h (220 *210 *50) mm
(8.66 *8.27 *1.97) in
Weight 1,6 kg, 3.53 lbs.
Misc
Sampling frequency 2 kHz
Internal memory 128 kbyte
Calendar clock < ± 1 h per year
Rechargeable lithium battery, backup time > 60 days
Expected battery lifetime > 15 year
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