Terminals To Connect Pcs And Plcs By The Rs485 Communication - Panasonic VF100 Instruction Manual

¡ö Explanation of Control Circuit Terminals
Terminal
No.
19 RS485 communication transmission line + terminal (D+)
20 RS485 communication transmission line - terminal (D-)
RS485 communication transmission line + terminal (D+)
21
22 RS485 communication transmission line - terminal (D-)
RS485 communication terminator terminal (E)
23
Unused terminal
24
A Relay contact output terminal (NO: at factory setting)
B Relay contact output terminal (NC: at factory setting)
C Relay contact output terminal (COM)
¡ôPWM signal can be used to control the operating frequency with terminals 7 and 8.
•ENo.7: Frequency setting signal changeover input terminal (SW4)
(OFF: PWM signal, ON: Controlled with signal set in parameter P004)
•ENo.8: PWM signal input terminal
7
Tr
8
9
¡ôTerminals to connect personal computers and PLCs by the RS485 communication.
RS485
D•{
19
D•|
20
D•{
21
D•|
22
23
Transition connecting wire: Max. 500m
24
Terminal Function
SW4
PWM signal
Terminator
D•{ D•{
19
19
D•| D•|
20
20
D•{
21
21
D•|
22
22
23
23
Note 1) When using PWM signal to control output
frequency, P087 to P089 must be set.
Note 2) Use a PWM signal transistor (Tr) that has
the following capabilities:
•EMax. rated voltage: 50VDC or more
•ERated current: 50mA or more
D+ : Transmission line + terminal
(RS485 communication)
D- : Transmission line - terminal
(RS485 communication)
E : Terminator terminal
(RS485 communication)
D•{
* Connect the D+ side and D+ side, D- side
D•|
Short
and D- side of the communication terminals.
-circuit
E
* The D- side and E side of the inverter to be
a terminator should be shorted. Do not short
the units other than the terminator.
Related Parameter
No.
P135£-142
P135£-142
P135£-142
P135£-142
P135£-142
£-
P092
P092
P092