Yaskawa E7B Drive Bypass System - Manual (Page 7)

Yaskawa Electric America, Inc.
Installation Guide IG.E7B.02 Rev: 04-11
Date: 11-1-04 Page 5 of 46
Analog Inputs
The Drive has two analog input terminals for use as auto mode speed command (terminals A1 & A2) and feedback
(terminal A2) input.
Control Circuit Analog Input Terminals on PCB A2
All control inputs are landed on TB1 through TB5 on PCB A2.
TB3-3 is an analog input terminal and may be connected to either Drive terminal A1 or Drive Terminal A2, to maxi-
mize input flexibility, using DIP switches S1-3 and S1-4. The factory default is TB3-3 connected to Drive terminal
A2. With this connection, the input signal level can be either 0 to 10 VDC or 4 to 20 mA. The signal level selection is
controlled by DIP switch S1-2 and Drive parameter H3-08.
TB5-9 is also an analog input terminal, it is always connected to Drive terminal A2.
See Table 1.5, Figure 1.2 and Schematic Diagram E7B-10 for clarification of the analog input configuration and
applications.
Analog Input PCB A2 Configuration
Fig 1.2 Analog Input PCB A2 Configuration
Table 1.4 Drive Analog Input Terminals
Terminal Signal Level
A1 0 to 10 VDC
A2
4 to 20 mA or 1 to 10 VDC
(programmable via parameter H3-08 and DIP switch S1-2)
Table 1.5 Analog Input - Auto Mode
DIP Switches Drive Drive Applications
S1-2 S1-3 S1-4
Param. Terminal Speed
Feedback
Diff.
H3-08 Connected Command Feedback
TB3-3
Signal Level
0 to 10 VDC
N/A OFF ON N/A TB3-3 to A1 X X X
4 to 20 mA ON ON OFF 2 TB3-3 to A2 X X
0 to 10 VDC OFF ON OFF 0 TB3-3 to A2 X X
TB5-9
Signal Level
4 to 20 mA ON N/A N/A 2 TB5-9 to A2
via 3-15
Transducer
0 to 10 VDC OFF N/A N/A 0 TB5-9 to A2 X