Vfd Indicator Lamps Description - ITech IT-M3900B Series User Manual

2U Models
1. Sense terminals (Vs+, Vs-)
2. DC output terminals of the power supply (or DC input terminals of the load)
3. Interface for optional accessories IT-E176 and IT-E177 (For details, see
4. Digital I/O interface: P-IO
5. LAN communication interface
6. CAN communication interface
7. USB communication interface
8. Communication interface of outer ring optical fiber (TX and RX)
9. AC power input terminals (L1, L2, L3, and PE)

1.6 VFD Indicator Lamps Description

This series instrument VFD indicator lamps description is as follows:
Table 1–1 VFD Indicator Lamps Description
Flag
OFF
CV
Options Introduction)
This interface is used for the parallel connection between the units for the
communication of units in parallel.
Function
Description
Source mode: The
output of the power
supply is turned off.
Load mode: The in-
put of the load is
turned off.
Source mode: The
power supply is in a
Copyright © Itech Electronic Co., Ltd.
Flag Function Description
Sense Sense function of the power
system is enabled.
Rear Analog function begin to
work.
Quick Reference
1.9
9