Yaskawa E7 Drive User Manual - Manual (Page 79)

Programming 5 - 5
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).
Fig 5.2 Wire Control
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.
Fig 5.3 Wire Control
To issue a run command via serial communication: Set b1-02= “2: Serial Com” and connect the RS-485/422 serial commu-
nication cable to R+, R-, S+, and S- on the removable terminal block. Be sure to use this setting when using the L
ON W ORKS ®
option card.
To issue the Run command via a network communication card other than L ON W ORKS ® option card: Set b1-02= “3:
Option PCB”, and plug a option board into the 2CN port on the Control PCB. Consult the manual supplied with the option
board for instructions on integrating the Drive into your L
ON W ORKS® System.
S1
S2
SN
FWD Run/Stop
REV Run/Stop
Stop
switch
(NC contact) Operation
switch
(NO contact)
Run command
(run on momentary close)
Stop command
(stop on momentary open)
Forward/reverse command
(multi-function input)
Sequence input common
S5
SN
TM_E7_01_07182008.book Page 5 Wednesday, July 23, 2008 2:35 PM