IMP Pumps NMTC module - Manual (Page 35)

35
Address Register name
Range Description
101 ControlReg
b0:
RemoteAccess
Control bit that sets local or remote control.
Setting this bit will enable pump control over
Modbus.
0 = Local
1 = Remote (controlled by Modbus master).
b1:
OnOffReq
Control bit that switches the pump on or off.
0 = Off (stop)
1 = On (start).
b2..15:
RESERVED
-
102 AltControlMode
Alternative Control mode. Use of register 108 is
preferred.
Sets the control mode enumeration.
0 = ConstantRPM
1 = ConstantRPM
3 = ConstantHead
4 = ConstantHead
5 = ConstantHead
6 = ProportionalHead
128 = AutoHeadMode
NOTE: values outside this range reserved.
103 OperationMode RESERVED
104 SetPoint
0..
10000
Sets desired pump setpoint.
0 will stop the pump. 10000 will set the pump to
maximum output for desired mode.
Values outside of valid range will cause the pump
to operate with front panel set values.
105 RelayControl 0..2
Configures relay output.
0 = indicates fault
1 = indicates pump ready
2 = indicates pump operation
See section “5 Relay output”.
106..107 RESERVED
108 ControlMode 0..3
Sets the pump control mode.
0 = AutoHeadMode (Automatic head mode)
1 = ProportionalHead (Head proportional to flow)
2 = ConstantHead (Head is kept constant)
3 = ConstantRPM (Speed is kept constant)
NOTE: values outside this range reserved.
See section “4.2 Control variables” for exact
parameter to be controlled.