Remote Temperatures Via Raychem Rmm; Electrical Installation - Pentair Raychem NGC-20-C-E Guide D'installation, D'utilisation Et De Maintenance

2.3.3 Remote temperatures via Raychem RMM

2.4 Electrical installation

L1
N
PE
RS485 cable from
previous device
W/B
W/B
W/B
PT100
temperature
sensor(s)
INDUSTRIAL HEAT TRACING SOLUTIONS
When used in combination with the optionally available Raychem NGC-UIT and
Raychem RMM2 units, the Raychem NGC-20-C(L)-E controllers are able to read
temperatures from up to 6 remote temperature sources (RTD type) via the RS485
network.
NGC-UIT-ORD
Conexão remota
opcional com DTS
Figure 8: Raychem NGC-20 in a network with NGC-UIT and RMM modules
The Raychem RMM2 units are used to read remote temperature inputs. One RMM2 device
supports up to 8 RTD inputs. A maximum of 16 RMM2 units can be connected on one
network. The Raychem NGC-UIT will collect up the temperatures from the RMM2 units
and distribute it to the required Raychem NGC-20 controller. Please refer to the
MONI-RMM2 datasheet and installation instructions for more details.
Figure 9 shows the electrical connection diagram of the Raychem NGC-20 controller.
The limiter temperature sensor connection is only applicable with the Raychem
NGC-20-CL-E. The optional second Pt100 temperature sensor for the control unit is
omitted for clarity.
When the device is the last on the communication
line install a wire bridge between the - and
T terminal as shown by the dotted line
RTD 2
R R PE
R R PE
RTD 1
PE
R R PE RTD LIMITER
PT100
temperature sensor
Only to be used for the LIMITER
Figure 9: electrical connection diagram Raychem NGC-20
ML-RaychemNGC20CLE-IM-INSTALL130 Rev8
T
HEATER HEATER
ALARM ALARM
LIMITER
LIMITER
RS485 RS485
BLUETOOTH BLUETOOTH
RESET
SET
LIMITER
NGC-20-C-E
Heat-Tracing Temperature Control System
Temperaturregelungsystem für Begleitheizungen
Système de Contrôle de Température pour Traçage Electrique
Sistema de Controle de Temperatura por Traço Térmico
RMM2
Li Lo Ni
RS485 S
+ –
RS485
S + – T
Internal RS485
end of line
termination
resistor
T
HEATER HEATER
ALARM ALARM
LIMITER
LIMITER
RS485 RS485
BLUETOOTH BLUETOOTH
RESET RESET
SET SET
LIMITER
NGC-20-C-E
Heat-Tracing Temperature Control System
Temperaturregelungsystem für Begleitheizungen
Système de Contrôle de Température pour Traçage Electrique Système de Contrôle de Température pour Traçage Electrique
Sistema de Controle de Temperatura por Traço Térmico Sistema de Controle de Temperatura por Traço Térmico
RMM2
0 0
Opcional
RS485 cable to
next device
No PE PE PE Lo No
Heater
Alarm
3A Max
Heating cable
T
HEATER HEATER
ALARM ALARM
LIMITER
LIMITER
RS485 RS485
BLUETOOTH BLUETOOTH
NGC-20-C-E
Heat-Tracing Temperature Control System
Temperaturregelungsystem für Begleitheizungen
Para unidade
seguinte
To next NGC-20
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