YASKAWA E7U Programming Manual page 11

In order to run the Drive and motor, the Drive must receive a Run command and a speed command. Parameter b1-01 specifies
from where the speed command is received when in the "Auto mode. Switching into the "Auto" mode can be done by pressing
the AUTO button on the digital operator while the Drive is stopped.
IMPORTANT
If you want the Drive to follow the speed command set by the digital operator: Use the "Hand" mode by pressing the hand
key or set b1-01= "0: Operator". The speed command can then be entered into the U1-01 monitor parameter in the "-DRIVE-"
Menu.
If you want the Drive to follow an "Auto" analog speed command: Set b1-01= "1: Terminals", and connect a 0 – 10 Vdc
speed command signal between terminals A1 and AC or a 4 – 20 mA speed command signal to terminals A2 and AC.
If you want the Drive to receive the speed command from serial communication: Set b1-01= "2: Serial Com", and connect
the RS-485/422 serial communications cable to terminals R+, R-, S+, and S- on the control I/O terminal block. Be sure to use this
setting when using the L
ON
If you want to use a network communication card other than L
PCB", and plug the network option board into the 2CN port on the Drive Control PCB. Consult the manual supplied with the
option board for instructions on integrating the Drive into the network.
IMPORTANT
b1-02 Run Source
Setting
0 Operator
1 Terminals (factory default)
2 Serial Com
3 Option PCB
To successfully operate the Drive remotely, an external run command must be received by the Drive. Parameter b1-02 specifies
from where the run command will be accepted.
Although the Run Source and the Reference Source (b1-01) are normally taken from the same source (e.g. digital operator,
terminals or serial communication), this is not always the case.
To issue a run command from the digital operator: Set b1-02= "0: Operator", and use the HAND and OFF buttons to start and
stop the Drive.
To issue the run command from the terminals: Set b1-02= "1: Terminals", and select between 2-wire and 3-wire control
operation by doing the following:
2-Wire Control The factory default setting is for 2-wire operation. In the 2-wire configuration a closure between S1 and SN
will be interpreted as a Forward Run command by the Drive. A closure between S2 and SN will be interpreted as a Reverse
Run command. If both S1 and S2 are closed, the Drive will stop (decelerate to zero speed) and the digital operator will display
an EF (external fault) alarm (Flashing).
If a Run command is input to the Drive but no corresponding speed command is input, the Run indicator on
the digital operator will turn on and the STOP indicator on the digital operator will blink.
ORKS ®
W option card.
If b1-01= "3: Option PCB" but a network card is not installed in 2CN, an OPE05 Operator Programming
Error will be displayed on the digital operator and the Drive will not run.
Description
ORKS ®
W to input a speed command: Set b1-01= "3: Option
ON
Programming 5