Elettronica Santerno SINUS K, User Manual

Page: 94 / 191

INSTALLATION
SINUS K
INSTRUCTIONS
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10.3. Digital Output Features
An OPEN COLLECTOR output is available on terminals 24 (collector) and 25 (common terminal). The OC
output is galvanically insulated from zero volt of the control board and is capable of driving a load up to 50mA
with 48V power supply.
The output functionality is determined by parameter P60 in the "Digital output" submenu.
The output enabling/disabling delay may be programmed through the parameters below:
-
P63 MDO ON Delay
-
P64 MDO OFF Delay.
The factory setting is the following:
frequency/speed threshold: the transistor activates when the output frequency (IFD SW) or the motor speed (VTC
SW) attains the level set through the "Digital Output" menu (parameters P69 "MDO level", P70 "MDO Hyst.").
The following figure show an example of a relay connected to the OPEN COLLECTOR output.
25
MDOC
CONTROL
BOARD
24
R
L
+
D
25
24
R
L
+
D
CONTROL
BOARD
MDOE
12
÷
48 V
DC
12
÷
48 V
DC
MDOC
MDOE
“PNP” CONNECTION
“NPN” CONNECTION
Figure 41: Connecting a relay to the OPEN COLLECTOR output.
CAUTION Always use freewheeling diode (D) for inductive loads (e.g. relay coils).
CAUTION Never exceed max. allowable voltage and max. allowable current values.
NOTE
Terminal 25 is galvanically isolated from terminals 1, 20, 22, (CMA – control
board zero volt) and from terminal 14 (CMD – digital input zero volt)
NOTE
As an auxiliary power supply, voltage at terminal 15 (+24V) and terminal 14
(CMD) (control terminals) may be used. Max. allowable current: 100mA.