User Guide

English
48 WILO SE 06/2011
meter values should only be tuned by someone with training in con-
trol engineering.
The direction of action of the controller is determined by the sign of
the P term.
Positive PID control (default):
If the sign of the P term is positive and the process value drops below
the setpoint, the control will increase the pump speed until the set-
point has been reached.
Negative PID control:
If the sign of the P term is negative and the process value drops below
the setpoint, the control will decrease the pump speed until the set-
point has been reached.
NOTE:
Check the controller's direction of action if PID control is being used,
but the pump is only running at minimum or maximum speed without
responding to changes in the parameter values.
10 Maintenance
Safety Have maintenance and repair work carried out by qualified person-
nel only!
It is recommended to have the pump serviced and checked by WILO
Customer Service.
Control
portion
Factory setting Adjustment range Increment
P 0.5 -30.0 ... -2.0
-1.99 ... -0.01
0.00 ... 1.99
2.0 ... 30.0
0.1
0.01
0.01
0.1
I 0.5 s 10 ms ... 990 ms
1 s ... 300 s
10 ms
1s
D 0s
(= deactivated)
0 ms ... 990 ms
1 s ... 300 s
10 ms
1s
DANGER! Danger of death!
There is a mortal danger through shock when working on electrical
equipment.
• Work on electrical equipment may only be done by electricians
approved by the local electricity supplier.
• Before working on electrical equipment, switch it off and prevent
it from being switched on again.
• Any damage to the connecting cable should always be rectified by
a qualified electrician only.
• Never use an object to poke around the openings on the module
or motor and never insert anything into the module or motor!
• Follow the installation and operating instructions for the pump,
level control and other accessories.