YASKAWA E7U Programming Manual page 12

3-Wire Control When any of the multi-function digital input parameters, H1-01 through H1-05, is set to 0, terminals S1 and
S2 become Run and Stop, respectively. The multi-function digital input that was set to 0 will function as a Forward/Reverse
input for the Drive. When the Forward/Reverse input is open the Drive will run in the Forward direction and when the input is
closed, the Drive will run in the Reverse direction.
In 3-wire operation a momentary closure (> 50mS) of S1 will cause the Drive to run provided that S2 is held closed. The Drive
will stop anytime the S2-SN connection is broken. If the 3-wire configuration is implemented via a 3-wire Initialization
(A1-03= "3330: 3-Wire Initial"), then terminal S5 becomes the Forward/Reverse input.
To issue a run command via serial communication
nication cable to R+, R-, S+, and S- on the removable terminal block. Be sure to use this setting when using the L
option card.
To issue the Run command via the L
2CN port on the Control PCB. Consult the manual supplied with the option board for instructions on integrating the Drive into
ORKS ®
your L W System.
ON
IMPORTANT
b1-03 Stopping Method
There are four methods of stopping the Drive when the Run command is removed.
Setting
0 Ramp to Stop (factory default)
1 Coast to Stop
2 DC Injection to Stop
3 Coast w/Timer
Stop Operation
switch switch
(NC contact) (NO contact)
W ® option card: Set b1-02= "3: Option PCB", and plug a option board into the
ON ORKS
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
S1
FWD Run/Stop
S2
REV Run/Stop
SN
Fig. 2 2-Wire Control
Run command
(run on momentary close)
Stop command
S5
(stop on momentary open)
Forward/reverse command
SN
(multi-function input)
Sequence input common
Fig. 3 3-Wire Control
:
Set b1-02= "2: Serial Com" and connect the RS-485/422 serial commu-
Programming 6
ORKS ®
W
ON