English (GB)
6
7.3 Special parameter settings for DMX/DMH
Some parameters have been adapted to DMX/DMH dosing
pumps. These parameters differ from the default settings
mentioned in the supplier manual for the VFD.
7.3.1 Mandatory settings
Basic parameters
Control terminals
* The minimum frequency for the VFD is set to approx. 5 Hz.
Extra functions
Modifications of other parameters and adaptation of the inputs
and outputs can be made with the optional "parameter box" or the
"NordCon" software. Observe the supplier manual "BU 0180" for
the VFD provided with the product.
Subject to alterations.
Warning
When resetting the VFD to default settings, the
special parameter settings for DMX/DMH are
overwritten. The special parameters must be set
again.
Caution
Do not set P506 "automatic fault
acknowledgement" to 6 "always".
In case of an active error (e. g. short-circuit to
earth / short circuit), the VFD restarts
continuously and damages the system, because
P428 is set to 1 "on".
Warning
Danger of malfunction of the VFD with DMX/DMH
dosing pump. Do not change the following
settings.
Code
Parameter
Value for DMX/DMH
P102
Start-up time
5 s
P105
Maximum frequency
100 Hz
Code
Index
Parameter
Value for DMX/DMH
P400
-02
Setpoint input function
AIN 2 (analog input 2)
01 = Setpoint frequency
P401
-01
Analog ON mode
AIN 1 (analog input 1)
2 = 0-10 V monitored
P401
-02
Analog ON mode
AIN 2 (analog input 2)
2 = 0-10 V monitored
P402
-01
Adjustment: 0 %
AIN 1 (analog input 1)
1.36 V*
P402
-02
Adjustment: 0 %
AIN 2 (analog input 2)
1 V
P403
-02
Adjustment: 100 %
AIN 2 (analog input 2)
5 V
P420
-01
Digital input function
DIN 1 (digital input 1)
02 = Enable left (left-handed rotation)
P420
-02
Digital input function
DIN 2 (digital input 2)
19 = Setpoint 1 on/off
P420
-03
Digital input function
DIN 3 (digital input 3)
20 = Setpoint 2 on/off
P428
Automatic starting after mains OFF
1 = On (enable with level)
Code
Parameter
Value for DMX/DMH
P504
pulse frequency
8 kHz
P540
mode phase sequence
3 = CCW only; only counter-clockwise direction is possible