Cal Power IT-M3400 Series User Manual page 97

Pin
22
23
Enable/disable analog control
1. Press [Shift]+[P-Set](System) composite key, and enter the System menu
2. Rotate the knob, select I/O Config, and press [Enter] key for confirmation.
3. Rotate the knob, select Ext_Program, and press [Enter] key for
4. Rotate the knob, and switch the display of On and Off options. After select-
5. Press [Esc] key, and exit the menu interface.
Analog interface remote control
Through the analog input interface, the analog signal can be input to remotely
set the outputvoltage value or current value. For detailed function definition of
pin, refer to
duces the wiring and usage method taking the common On/Off control and volt-
age and current control as examples.
When the voltage and current setting values are controlled through the analog
interface, connect the external voltage (0V ~ 10V) to program the voltage or cur-
rent value between 0 and full range. Meanwhile, the analog monitoring function
(0V ~ 10V) can be used to monitor the existing voltage or current between 0
and full range. During parallel operation, the master unit analog interface can be
Name
CV
On/Off
interface.
The related configuration menus can be displayed only when the user se-
lects the analog interface.
confirmation.
ing On , press [Enter] key for confirmation.
•
Off: Default value, indicating that this function is turned off.
•
On: Indicating that the function is turned on. Before turning on the exter-
nal analog interface function, please confirm whether pins 1 (Vol_Pro),
15 (Cur_Pro) and 17 (Cur/Vol_Pro) are correctly connected.
Table 7–2 DB25 analog interface
Copyright © Itech Electronic Co., Ltd.
Type Description
(CC), 11 (ALM), 20 (ALM_Clear), 22
(CV), 23 (On/Off)
Digital Indicate the instrument's working
output state: Under the CV mode, this pin out-
puts 5V; otherwise, this pin outputs
0V.
Digital Indicate the instrument's On/Off state:
output When the instrument is On, this pin
outputs 5V; when the instrument is Off,
this pin outputs 0V.
description. The text below intro-
System-Related Functions
86