English (GB)
37
TPED and MAGNA3-D
The setpoint is written to regiser 00104 Setpoint as a percentage
value scaled in 0.01 % of the nominal pump frequency f
nom
. The
selected setpoint is reflected in register 00338 UserSetpoint with
the same scaling. From the fieldbus, it will get whatever value
written to Setpoint but from the pump display and Grundfos GO
Remote, it is truncated to the internal pump frequency limits [f
min
;
f
max
].
The actual setpoint, whether it has been set via Grundfos GO
Remote, the pump display, the pump buttons or the fieldbus, can
be read from register 00308 ActualSetpoint, and it always reflects
the frequency limitations. It equals the value that the pump
actually uses. Values of f
min
, f
max
and f
nom
can be read in
Grundfos GO Remote.
* Percentage of f
nom
.
Fig. 30 Setpoint in open-loop control for TPED and MAGNA3-
D
10.5 Temperature calculation
All temperatures are available in Kelvin.
Conversion formulas for Celsius and Fahrenheit:
T
C
= T
K
- 273.15
T
F
= T
K
× 9/5 - 459.67
10.6 Reading DDD remote sensor data
The DDD system is used for smart pressure management in
municipal water supply systems. In automatic adaptation mode, it
will maintain a stable pressure in critical points, where remote
pressure sensors, data loggers, are installed.
Pressure data is logged every 15 minutes in remote sensors and
sent to the DDD controller via text messages once a day. This
means that the measured pressure data is not "live" in the
Modbus profile. The registers from 00605 to 00614 show the data
delayed by 24 hours and are updated every 15 minutes, for
creating graph on a supervisory system for the remote sensors.
Sensor warnings, for example low battery voltage, are displayed
as soon as they are detected.
10.7 Alarms and warnings from the booster system
In the WarningCode register, the cause of a booster system
warning can be read. A warning has no influence on the booster
system operation.
In the FaultCode register, the cause of a booster system alarm
can be read. A booster system alarm always leads to a reaction in
the booster system operation. Usually the booster system is
stopped, but some alarms in some booster system types have
programmable alarm action types.
The complete list of possible alarm and warning codes is shown
below. Not all codes apply to all booster system types.
TM07 0150 4317
DDD systems always require a flow meter and an
outlet pressure sensor at the pumping station.
Address Name Description
00206 WarningCode
Code for booster system
warning.
00205 FaultCode Code for booster system alarm.
X
set
0 %
f
nom
100 %
X
act
f
min
f
max
Setpoint*
(Register 00104)
UserSetpoint*
(Register 00343)
ActualSetpoint*
Register 00308)
Code
Alarm/warning
description
Reset type
1
Action type
2
3 External fault signal A/M Prog.
10
Communication fault,
pump
ANone
80
Hardware fault, IO
351 pump module
ANone
80
Hardware fault, IO
351 I/O module
ANone
83
Verification error,
EEPROM parameter
area
ANone
88
Sensor fault, general
measuring sensor
ANone
89
Signal fault, closed-
loop feedback sensor
A/M Prog.
91
Temperature sensor
1 signal fault
A/M Prog.
157 Real-time clock error A None
161
Sensor supply fault,
5 V
ANone
162
Sensor supply fault,
24 V
ANone
165
Signal fault, analog
input 1
A/M Prog.
166
Signal fault, analog
input 2
A/M Prog.
167
Signal fault, analog
input 3
A/M Prog.
175
Temperature sensor
2 signal fault
A/M Prog.
190
Limit exceeded,
supervised item 1
A/M Prog.
191
Limit exceeded,
supervised item 2
A/M Prog.
203 Alarm on all pumps A/M Prog.
204
Inconsistency
between sensors
ANone
208
Operation outside
performance range
A/M Prog.
210 Overpressure A/M Prog.
211 Underpressure A/M Prog.
213 VFD not ready A None
214 Water shortage A/M Prog.
215
Soft pressure buildup
time-out
A/M Prog.
216 Pilot pump alarm A None
219
Pressure relief not
adequate
ANone
231
Ethernet: No IP
address from DHCP
server
ANone
232
Ethernet:
Auto-disabled due to
misuse
ANone
248 Fault, battery/UPS A None
253
SMS data not
received within time
ANone
254
Water pipe system
model data
inconsistency
ANone
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