IMP Pumps NMTC module - Manual (Page 14)

14
WARNING!
Before performing any work on the module, make sure that the pump and module electricity
supply has been switched off and that it cannot be accidently switched on.
There is a mode selection rotary switch in the terminal box. It can be rotated by gently inserting a
screwdriver into the arrow mark on top and rotating the switch to desired value.
Mode
switch
position
Function Description
0
Free
configuration
Terminal functions are configured over Ethernet interface.
1 Mode 1
SET1 = RUN input
SET2 = MAX input
SET3 = FB (10.5V) output, used to supply RUN and MAX inputs. External
voltage source can also be used.
RS-485 = Modbus interface.
See section “4.4 Mode 1”.
2 Mode 2
SET1 = RUN input
SET2 = SPEED input
SET3 = FB (10.5V) output, used to supply RUN and MAX inputs. External
5-24V voltage source can also be used.
RS-485 = Modbus interface
See section “4.5 Mode 2”.
3..5 RESERVED Reserved for future or customer specific use.
6
Show relay
configuration
LED1 and LED2 will show relay configuration.
See section “5 Relay output”.
7
Change relay
configuration
Relay configuration will be increased (0->1, 1->2, 2->0) when electricity
is turned on.
LED1 and LED2 will show current relay configuration.
See section “5 Relay output”.
8
Twin reset to
factory
Same as Mode 9, with exception of:
module IP address is set to 192.168.0.246
Twin IP address is set to 192.168.0.245
9 Reset to factory
This mode will set communication interface to default values. Main
purpose is to restore default settings.
NOTE:
• Disconnect any SET1, SET2 and SET3 connections when using
this mode to prevent possible harm to controller. SET1, SET2,
SET3 will output test voltages of 10V, 7V and 5V respectively.
RS-485 port is actively driven. Relay will cycle. This is used for
testing purposes.
• It is recommended that all module wires are disconnected to
prevent possible harm to external controllers.
4.4 Mode 1
Mode 1 is most often used mode of operation. It has 2 pre-prepared inputs that can be used for either
digital control or with analog control voltages. Additional 10.5V output provides voltage feedback for
analog or digital control.