Pentax DSI-200 Series User Manual page 82

external terminal.
Note: For convenience of explanation, the S1, S2, and S2 terminals of the multi-function
input terminals S1 to S10 are selected as external terminals. That is, by setting the value
of P4-00 ~ P4-02 to select the functions of S1, S2 and S2 three terminals. For details,
please refer to the setting range of P4-00 ~ P4-09.
0: Two-wire mode 1: This mode is the most commonly used two-wire mode. By the
terminal S1, S2 to determine the positive and reverse operation of the motor. The function
is set as follows:
Function
P4-11
P4-00
P4-01
As shown in the figure above, in this control mode, K1 is closed and the inverter is running
forward. K2 closed reverse, K2, K1 closed or disconnected at the same time, the inverter
stops running.
3: Three-wire control mode 2: When this mode is used, S3 is enable terminal, the S1
terminal function is the operation enable terminal, and the S2 terminal function determines
the running direction. The function is set as follows
Function
P4-11
P4-00
P4-01
Name
Terminal
request
S1 Terminal
function selection
S2 Terminal
function selection
Figure 6-8 Two-line mode 1
Name
Terminal command
mode
S1 Terminal
function selection
S2 Terminal
function selection
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Set range Function description
Two wire 1
0
Forward run （FWD）
1
2
Reverse run（REV）
Set number
3
1
2
Function
description
Three wires 2
Run enable
Positive and
negative direction
of operation