Yaskawa E7 Drive Technical Manual - Manual (Page 23)

Date: 02/25/2010, Rev: 10-02 Page 23 of 34 TM.F7SW.064
For the ELS – Sign Run mode (P1-01 = 5), the functionality of the Communication Advance/Retard
Counts Register is adjusted in the same way. With a forward run command, a positive value in the
register will move the follower drive in the absolute positive direction and a negative value will move the
follower drive in the absolute negative direction, while with a reverse run command these directions are
switched. The direction the follower is moved by the Advance/Retard command is always with respect to
the run command direction. The functionality of Advance/Retard for both P1-01 = 4 (Standard ELS) and
P1-01 = 5 (ELS - Sign Run) is shown on the following page.
When the drive is put into local mode (digital input or keypad button) or when the drive is given a forward
or reverse jog command, the frequency reference is switched back to standard frequency reference and
the selected Accel / Decel times are used.
The table below shows the direction of the Follower depending on the direction of the Master, P1-01
setting, B1-04 (reverse operation prohibit selection) setting, and the forward run / reverse run digital input
signal.
Follower Rotation Direction for Various Settings and Master Direction
P1-01 = 1 P1-01 = 2 P1-01 = 3 P1-01 = 4 P1-01 = 5
B1-04
(Reverse
Operation)
Digital
Input
Signal Master:
FWD
Master:
REV
Master:
FWD
Master:
REV
Master:
FWD
Master:
REV
Master:
FWD
Master:
REV
Master:
FWD
Master:
REV
FWD FWD REV FWD NONE FWD FWD FWD REV FWD REV
B1-04 = 0
Enabled
REV REV FWD NONE REV REV REV FWD REV REV FWD
FWD FWD NONE FWD NONE FWD FWD FWD NONE FWD NONE
B1-04 = 1
Disabled
REV NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE
The diagrams below outline the Follower direction and Advance/Retard behavior for P1-04 settings and
forward / reverse run command selections.
FWD FWD
Adv
Ret
REV REV
Ret
Adv
REV
Adv
Ret
FWD
REV FWD
Adv
Ret
FWD FWD
Adv
Ret
REV REV
Ret
Adv
FWD
REV
FWD
Adv
Ret
REV
Ret
Adv
FWD Run Command REV Run Command
P1-01 = 4
P1-01 = 5
Master Follower Master Follower
Follower Direction and Advance/Retard Behavior