DIP switches 5-7 settings
DIP 5 DIP 6 DIP 7
CONFIGURATION DIAGRAM
OFF
OFF
OFF
ON/OFF Valves and 3 FAN speed (factory
setting)
ON
OFF
OFF
ON/OFF Valves and 3 speed FAN - “FAST”
operation mode (Operating Diagram 1)
OFF
ON
OFF
ON/OFF Valves and 3 speed FAN
(Operating Diagram 2)
ON
ON
OFF
Proportional Valves (3 point or 0-10V) and
3 FAN speed (Operating Diagram 3)
OFF
OFF
ON
ON/OFF Valves and 1 speed FAN
(Operating Diagram 4)
ON
OFF
ON
Proportional Valves (3 point or 0-10V) and
1 speed FAN (Operating Diagram 5)
OFF
ON
ON
ON/OFF Valves and Modulating FAN
(0–10V) (Operating Diagram 6)
ON
ON
ON
Proportional Valves and Modulating FAN
(0–10V). (Operating Diagram 7a e 7b)
To set the Operating Diagram 8
is necessary to use the configurator
leaving the DIP 5, 6 and 7 in OFF position.
DIP switche 8 settings
DIP 8
PLANT
OFF
2-pipe
ON
4-pipe
LEDs functionalities
Controller is equipped with 2 LEDs to check its behaviour and possi
-
ble anomalies as shown in the following table:
RED LED
GREEN LED
BLINKING
RATE
DESCRIPTION
BLINKING
OFF
1Hz – DUTY
CYCLE 50%
HOT VALVE OPENED
OFF
BLINKING
1Hz - DUTY
CYCLE 50%
COOL VALVE OPENED
BLINKING
BLINKING
1Hz – DUTY
CYCLE 10%
HOT & COOL VALVE
CLOSED
ON
ON
NA
REMOTE SENSOR
COMUNICATION
FAILURE
ON
BLINKING
2Hz – DUTY
CYCLE 50%
LOCAL SENSOR
ERROR
Note: for a 2-pipe system the only connected 3-point or ON/OFF
valve is the HOT valve and so the only operative LED for hot
and cool fluid is the RED LED.
NR9001 CONTROLLER DIP SWITCHES AND LEDs
The controller has 8 DIP switches accessible by removing the top co
-
ver and 2 LEDs to identify the state of the valves (open or closed) and
the communication anomalies.
1
2 3 4
5 6 7 8
ON
DIP switches from 1 to 4
can be used to set MODBUS devices address
(up to 14) without the use of the configuration tool and to set the
controller in expansion mode duplicating the outputs.
If the first 4 DIPs are all in OFF, the default Modbus address is 1 (factory
EEPROM setting).
In the case of more than 14 controllers the configuration can be
done either by supervision or through the configuration tool using the
Modbus protocol.
DIP switches from 5 to 7 are used to set the operating diagram.
If the DIPs 5 to 7 are OFF, the default operating diagram is 2 - ON-OFF
and 3 fan speeds (factory EEPROM setting).
DIP 8 is used to select a 2 or 4 pipe system.
If it is OFF, the system is 2-pipe (factory EEPROM setting).
The settings set via DIP switches have priority over supervision. It is
possible to disable the use of DIPs via the Modbus setting.
For each DIP setting change the controller must be switched off and
on again.
DIP Switches 1-4 settings
DIP 1 DIP 2 DIP 3 DIP 4
MODBUS ADDRESS
OFF
OFF
OFF
OFF
Factory Setting
(default address1)
ON
OFF
OFF
OFF
1
OFF
ON
OFF
OFF
2
ON
ON
OFF
OFF
3
OFF
OFF
ON
OFF
4
ON
OFF
ON
OFF
5
OFF
ON
ON
OFF
6
ON
ON
ON
OFF
7
OFF
OFF
OFF
ON
8
ON
OFF
OFF
ON
9
OFF
ON
OFF
ON
10
ON
ON
OFF
ON
11
OFF
OFF
ON
ON
12
ON
OFF
ON
ON
13
OFF
ON
ON
ON
14
ON
ON
ON
ON
Unexpected configuration
1
st
Issue
06/2019
DBL585e
Page 14
