C&S MRN3, Manual

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7.3.1 Interface parameter
Function Function
Function Function Function
PPPPParameter arameter
arameter arameter arameter
Modbus-Protocol Modbus-Protocol
Modbus-Protocol Modbus-Protocol Modbus-Protocol
RS485 Open Data Protocol RS485 Open Data Protocol
RS485 Open Data Protocol RS485 Open Data Protocol RS485 Open Data Protocol
RS Slave-Address 1-32 1-32
RS Baud-Rate* 1200, 2400, 4800, 9600 9600 (fixed)
RS Parity* even, odd, no “even Parity” (fixed)
TTTTTable 7.1 : Interface parameter able 7.1 : Interface parameter
able 7.1 : Interface parameter able 7.1 : Interface parameter
able 7.1 : Interface parameter
* only Modbus Protocol
7.3.2 Parameters for the fault recorder
Function Function Function Function Function PPPPParamter aramter aramter aramter aramter Adjustment example Adjustment example Adjustment example Adjustment example Adjustment example
FR Number recordings (1)* 2 x8 s; (3)* 4 x 4 s; (7)* 8 x 2 s (with 50 Hz)
(1)* 2 x6.66 s; (3)* 4 x 3.33 s; (7)* 8 x 1.66 s (60 Hz)
FR Saving of the recording at the occurence P_UP; TRIP; A_PI; TEST
FR Pre-trigger-time 0.05 s - 8.00 s
TTTTTable 7.2 : Parameters for the fault recorder able 7.2 : Parameters for the fault recorder
able 7.2 : Parameters for the fault recorder able 7.2 : Parameters for the fault recorder
able 7.2 : Parameters for the fault recorder
* is written over when a new trigger signal arrives
7.4 Output relays
Relay type Relay type
Relay type Relay type Relay type
TTTTTrip relays / change rip relays / change
rip relays / change rip relays / change rip relays / change-----over contacts
over contacts
over contacts over contacts over contacts
Alarm relays / change-over contacts Alarm relays / change-over contacts
Alarm relays / change-over contacts Alarm relays / change-over contacts Alarm relays / change-over contacts
MRN2 1/2 4/1
TTTTTable 7.2: Output relays able 7.2: Output relays able 7.2: Output relays able 7.2: Output relays able 7.2: Output relays
8. Order form
Mains decoupling relay MRN3-
With voltage-, frequency and 1
vector surge supervision
Voltage, frequency and 2
df/dt-supervision
Rated voltage:
100 V 1
230 V 2
400 V 4
Housing (12TE) 19“-rack A
Flush mounting D
RS485 Alternatively with Modbus Protocol -M
Technical data subject to change without notice!
2 5 2 5 2 5 2 5 2 5