Yaskawa E7B Drive Bypass - Manual (Page 149)

Programming 5 - 55
terminals and the RS-485/422 port (and the embedded communication protocols) on the removable terminal board. When a dig-
ital input is programmed for the Com/Inv Selection function (H1-0x= 6B) that input will function as follows:
To switch the command source between the serial communication port and the control circuit terminals be sure to program the
following parameters:
• Set b1-01 (Frequency Reference Selection) to 1 (Terminals).
• Set b1-02 (Run Command Selection) to 1 (Terminals).
• Set H1-0x (Input Terminal Function Selection) to 6B or 6C.
The Com/Inv Sel 2 function will operate the same way except the logic is reversed. When a digital input is programmed for the
Com/Inv Selection function (H1-0x= 6C) that input will function as follows:
Function: Auto Mode Sel
Setting: 6D
Function: Hand Mode Sel
Setting: 6E
This effects the speed command (reference) input only. The Auto Mode Selection (H1-0x= 6D) and the Hand Mode Selection
(H1-0x= 6E) allows use of a digital input to toggle between the Auto and Hand operational modes for speed control. The Auto
Mode Selection and Hand Mode Selection cannot both be programmed simultaneously. If both 6D and 6E are programmed
together, an OPE03 fault will occur.
The 6D setting for digital input defines the speed command (or setpoint) source as the keypad/operator for an open contact and
allows b1-01 to determine the speed command source for a closed contact. Setting 6D has no effect on the run command.
Table 5.14
Option/Inv Function Input Status Run and Speed Command Source
OPEN From the control circuit and analog input terminals
CLOSED From Serial Com port (R+,R-,S+, and S-) (embedded protocols)
Table 5.15
Option/Inv Function Input Status Run and Speed Command Source
OPEN From Serial Com port (R+, R-, S+, and S-) (embedded protocols)
CLOSED From the control circuit and analog input terminals
IMPORTANT
Switching the Reference and Run sources can only be done while the Drive is stopped.
Input Contact Status Speed Command or PI Setpoint Source
OPEN Keypad/operator (override b1-01)
CLOSED Determined by b1-01