Instruction manual V 2.3
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PWM 230 - PWM 400 - PWM 400/7.5
Instruction manual
3
THE KEYPAD AND THE DISPLAY
Figure 15: PWM’s Keypad and Display.
The PWM front panel is equipped with a control keypad with 4 keys and a two-digit display used to show
quantities, numerical values and possible block and protection conditions.
3.1 Keys
functionality
MODE is used to pass to the next item of the current menu
SET is used to quit current menu and to go back to normal display mode
Press it to decrease the currently modifiable parameter.
Each time you press it, the quantity value is displayed for at least 5 seconds. Thereafter
the parameter name appears.
Press it to increase the currently modifiable parameter.
Each time you press it, the quantity value is displayed for at least 5 seconds. Thereafter
the parameter name appears.
Note: When “+” or “-“ is pressed, the selected quantity will be changed and immediately saved in
permanent memory (EEPROM). Hence, the parameter value won’t be lost if the device is (even
accidentally) turned off.
is just used to return displaying the machine status. It is not
necessary to press SET to save the last parameter changes.
3.2 Display
conventions
Parameters are identified by an alphanumeric name and by a value. The meaning of parameter names is
summarized on Table 8. When a message (e.g., an error) is shown two static characters appear.
Conversely, a parameter is shown by alternatively displaying its name (for 1 second) and its value (for 5
seconds).
In order to simplify configuration, only the value is shown as long as either the "+" key or the "-" key is
pressed.
Some values need 3 digits to be displayed, e.g. frequency or temperature. In this case the display
convention is the following:
