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TDK-Lambda
CN-A110 Series
Instruction Manual
Notes
1. When ON/OFF control function is not used, CNT
terminal should be shorted to –Vin terminal.
2. When using long wiring, for prevention of noise, attach a
capacitor between CNT terminal and –Vin terminal.
3. At L level, maximum source current from CNT terminal
to –Vin terminal is 0.5mA.
4. The maximum CNT terminal voltage is 35V.
(1)
Output ON/OFF control
Fig.11-1 CNT Connection (1)
(2)
Secondary (output side) control
Fig.11-2 CNT Connection (2)
12. Parallel Operation (PC terminal)
This terminal is available for CN200A110-12, 15 and 24
Models only. Do not use CN200A110-5, CN30A110,
CN50A110 and CN100A110 in parallel operation.
Also, CN200A110 Series is not possible for N+1 parallel
redundant operation.
By connecting the PC terminal of each power module, output
current can be equally drawn from each power module. A
maximum of 3 units of the same model can be connected.
Take care that the maximum power of each module should
not be exceeded.
Also note that using OR diodes during parallel operation
could cause power module malfunction.
Notes
1. Output voltage accuracy of each module should be set
within
±
1% when using in parallel operation.
2. Maximum output current of each module should be
derated at 90% or less.
3. Use the same type, length and diameter of wire for each
module when using in parallel operation.
(a) Parallel connection to enhance the output and to
improve the reliability
Fig.12-1 PC terminal Connection
(b) Parallel connection for programmed output voltage.
Fig.12-2 Programmed Output Voltage
(c) Parallel connection for variable output voltage
(by External Variable Resistor)
Fig.12-3 Variable Output Voltage
(by External Variable Resistor)
(d) Parallel connection for variable output voltage
(by Applied External Voltage)
Fig.12-4 Variable Output Voltage
(by Applied External Voltage)
CN200A110
CN200A110
+Vin
-Vin
PC/NC
CNT
+Vin
-Vin
PC/NC
CNT
+Vo
+S
TRM
-S
-Vo
Load
+Vo
+S
TRM
-S
-Vo
+
-
Fuse
Fuse
CN200A110
CN200A110
+Vin
-Vin
PC/NC
CNT
+Vin
-Vin
PC/NC
CNT
+Vo
+S
TRM
-S
-Vo
Load
+Vo
+S
TRM
-S
-Vo
+
-
Fuse
Fuse
CN200A110
CN200A110
+Vin
-Vin
PC/NC
CNT
+Vin
-Vin
PC/NC
CNT
+Vo
+S
TRM
-S
-Vo
Load
+Vo
+S
TRM
-S
-Vo
+
-
Fuse
Fuse
Fuse
+Vin
-Vin
CNT
Transistor, Relay
or Equivalent
Fuse
+Vin
-Vin
CNT
Secondary
(output side )
CN200A110
CN200A110
+Vin
-Vin
PC/NC
CNT
+Vin
-Vin
PC/NC
CNT
+Vo
+S
TRM
-S
-Vo
Load
+Vo
+S
TRM
-S
-Vo
+
-
Fuse
Fuse