Instructions

INSTRUCTION MANUAL
CCG
TDKLambda
<Page>
11/20
66. Over Current Protection (OCP)
This power supply has builtin OCP function.
When short circuit or output current is in overload condition, it becomes intermittent operation.
Output will recover when short circuit or overload conditions are released.
Take note that power supply might be damaged at continuous overload conditions depending on
thermal conditions.
67. Remote ON/OFF Control (RC terminal)
Without turning the input supply on and off, the output can be enabled and disabled using this function.
Standard type is negative logic.
In order to use remote ON/OFF control function, attach transistor, relay or equivalent between
RC and Vin terminal as shown Fig.65.
For secondary control, isolation can be achieved through the use of a photocoupler or equivalent as
shown in Fig.66.
Note) 1. When remote ON/OFF control function is not used, RC terminal should be shorted to Vin terminal.
2. Source current from RC terminal to Vin terminal is 1mA or lower.
3. The maximum RC terminal voltage is 18V.
4. When using long wiring, for prevention of noise, attach capacitor between RC and Vin terminal.
The maximum capacitance between RC and Vin terminal is 1μF.
Fig.65 RC Connection (1)
Table 63 RC Connection
Vin
+Vin
Vin
F1
C1
RC
Transistor, Relay
or Equivalent
Vin
+Vin
Vin
F1
C1
RC
Secondary
(output side)
Fig.66 RC Connection (2)
Logic Output Status
Negative Logic
ON
OFF
Switch
Short (0V≦V
RC
≦0.5V)
Open (4V≦V
RC
≦18V)