Omron SYSDRIVE 3G3MV A2002, User Manual

Page: 134 / 348

5-35
Value Function Description
34 Up or down
command
Up or down command (set in n056 only)
By setting n056 to 34, the set value in n055 is ignored
and the following settings are forcibly made.
S6: Up command S7: Down command
Note It is impossible to set the up or down command and
multi-step speed references 1 through 4 together.
Note To keep the frequency reference that has been
adjusted with the Up or Down command after the
Inverter is turned OFF, set n100 (Up/Down fre-
quency memory) to 1.
Acceleration
S6 terminal
(Up command)
Deceleration Hold Hold
ON OFF OFF ON
S7 terminal
(Down command)
OFF ON OFF ON
35 Self-diagnostic test ON: RS-422/485 communications self-diagnostic test
(set in n056 only)
The communications function is tested by connecting
the transmission and reception terminals together and
checking that the data received is the same as the
transmission data.
H
Operation in 2-wire Sequence (Set Value: 1, 2)
·
The Inverter operates in 2-wire sequence by setting a multi-function input selection to
1 (forward/reverse) or 2 (reverse/stop).
·
The following diagram shows a wiring example of the terminals in 2-wire sequence.
Forward-rotation
switch
Reverse-rotation
switch
Forward/Stop
(Forward rotation with the forward-rotation switch closed)
Reverse/Stop
(Reverse rotation with the reverse-rotation switch closed)
Sequence input common
j
: 1 to 7
H
Operation in 3-wire Sequence (n052 = 0)
·
The Inverter operates in 3-wire sequence by setting n052 for multi-function digital input
3 to 0.
·
Only n052 can be set to 0 (3-wire sequence). By making this setting, the set values in
n050 and n051 are ignored and the following settings are forcibly made.
Basic Operation
Chapter 5