Matsushita Electric Works, Ltd.
Global Marketing Division
25
UJ20 inputs/outputs (I/O terminal arrangement)
Pin Nos. 12, 20, and 21 are internally connected.
The ON time of the input signal pulses must be 100 ms or more.
Input/Output
Pin No.
Signal nam e
Des cription
1
START
1
Signal to s tart CH1 or collective irradiation
2
START
2
Signal to s tart CH2 irradiation
3
START
3
Signal to s tart CH3 irradiation
4
START
4
Signal to s tart CH4 irradiation
5
TYPE
Chg1
Signal to s witch irradiation patterns
6
TYPE
Chg2
Signal to s witch irradiation patterns
7
TYPE
Chg4
Signal to s witch irradiation patterns
8
TYPE
Chg8
Signal to s witch irradiation patterns
9
STOP
Signal to activ ate an em ergency stop during irradiation
10
MNL
ON
Signal to switch to m anual m ode (External MN L m ode)
11
EMER.
Interlock (norm ally-on)
12
COM
Com m on term inal for input/output s ignals
13
READY
Irradiation is ready
14
BUSY
1
ON during CH1 irradiation
15
BUSY
2
ON during CH2 irradiation
16
BUSY
3
ON during CH3 irradiation
17
BUSY
4
ON during CH4 irradiation
18
ERROR
Error s ignal
19
ALARM
W arning signal (tem perature warning and tim e warning)
20
COM
Com m on term inal for input/output s ignals
21
COM
Com m on term inal for input/output s ignals
22
FG
Fram e ground
23
+5V
5 V DC output (for dis play for output s ignals )
24
GND
5 V DC ground
Input
O
u
tput
0.2 - 1.25 mm
2
AWG#24 - 16
Cross section of the
conductor
Size
MINI COMBICON Plug 12P
(Phoenix Contact MC 1.5/12-ST-
3.5)
Notes:
(1) Terminal tightening torque: 0.22 N
x
m to 0.25
N
x
m
(2) Carefully strip the cover so as not to damage
the core wires.
(3) Connect the core wires without twisting them.
(4) Connect the core wires without soldering them;
otherwise, they may break due to vibration.
(5) After connection, do not apply stress to the
cable.
(6) Because of the terminal structure, if the wire is
tightened by a counterclockwise rotation, the
connection will fail. In such cases, pull out the
wire, check the terminal hole, and then connect
it again.
Equipment
design
