Kikusui PLZ-4W Series, Руководство пользователя

Страница: 148 / 218

6-58 Applied Operation PLZ-4W
6.8.9 External Control of the Current Range
The current range can be controlled using an external control signal. In addition, the
status signal output can be used to monitor the selected range. The voltage range
cannot be controlled.
Table 6-12 A list of control signals
HIGH: 5 V, LOW: 0 V, OFF: OPEN, ON: SHORT
• Set the current range on the panel to the H range.
• The current range cannot be changed when the load is turned on. The control sig-
nal input received while the load is turned on is discarded.
Range signal input
Pins 8 and 9 of the J1 connector are used
(pin 12 is common). 2-bit signal.
• The control input terminal is connected
to +5 V of the J1 connector through
approximately 10 k
Ω
of resistance. The
maximum allowable voltage is 5 V, and
the operation threshold level is TTL.
Status signal output
Pins 14 and 15 of the J1 con-
nector are used (pin 17 is com-
mon). 2-bit signal.
Current
range
Control input Status output
PLZ
164W/
164WA
PLZ
334W
PLZ
664WA
PLZ
1004W
RANGE
CONT 0
(J1-9)
RANGE
CONT 1
(J1-8)
RANGE
STATUS 0
(J1-15)
RANGE
STATUS 1
(J1-14)
H HIGH HIGH OFF OFF 33 A 66 A 132 A 200 A
M HIGH LOW OFF ON 3.3 A 6.6 A 13.2 A 20 A
L LOW HIGH ON OFF 0.33 A 0.66 A 1.32 A 2 A
NOTE
+5 V
Approx. 10
k
Ω
A COM
J1
12
8 , 9
Fig. 6-43 Equivalent input circuit
NOTE
J1
Photocoupler (P.C)
17
14 , 15
Maximum applied voltage 30 V
Maximum current
8 mA
Fig. 6-44 Equivalent output circuit