SAMLEX AMERICA INC. | 25
SECTION 5 |
Description & Principles of Operation
5.7.1 1-Wire Remote ON / OFF Control using ENB Terminal
Refer to Fig 5.2
NO
COM.
ENB
GND
ENB
NC
Inverter is ON
when switch is ON
ON/OFF
switch
Fuse
Battery (+) voltage from the same
battery system that is feeding
PSR-1200-24/48 (current draw < 6mA)
NO
COM.
ENB
GND
ENB
NC
NO
COM.
ENB
GND
ENB
NC
Inverter is ON
when switch is ON
ON/OFF
switch
Fuse
External DC voltage source
● 10 to 40 VDC for PSR-1200-24
● 20 to 60 VDC for PSR-1200-48
(current draw < 6mA)
+10 to 40 VDC for PSR-1200-24
+20 to 60 VDC for PSR-1200-48
NO
COM.
ENB
GND
ENB
NC
Inverter is ON
when switch is ON
ON/OFF
switch
NPN Transitor Switch
Vcc return
Vcc
9
Base drive
● Base High (Transistor is ON) → The unit will switch ON
● Base Low (Transistor is OFF) → The unit will switch OFF
Fig 5.2 1-Wire Remote ON / OFF Control using ENB Terminal
5.7.2 2-Wire Remote ON / OFF Control using ENB and GND Terminals
Refer to Fig 5.3
NO
COM.
ENB
GND
ENB
NC
Inverter is ON
when switch is ON
ON/OFF
switch
Fuse
Battery (+) voltage from the same
battery system that is feeding
PSR-1200-24/48 (current draw < 6mA)
NO
COM.
ENB
GND
ENB
NC
NO
COM.
ENB
GND
ENB
NC
Inverter is ON
when switch is ON
ON/OFF
switch
Fuse
External DC voltage source
● 10 to 40 VDC for PSR-1200-24
● 20 to 60 VDC for PSR-1200-48
(current draw < 6mA)
+10 to 40 VDC for PSR-1200-24
+20 to 60 VDC for PSR-1200-48
NO
COM.
ENB
GND
ENB
NC
Inverter is ON
when switch is ON
ON/OFF
switch
NPN Transitor Switch
Vcc return
Vcc
9
Base drive
● Base High (Transistor is ON) → The unit will switch ON
● Base Low (Transistor is OFF) → The unit will switch OFF
Fig 5.3 2-Wire Remote Control ON / OFF using ENB and GND Terminals
5.7.3 2-Wire Remote ON / OFF Control using ENB and GND Terminals and External DC Power Source
Refer to Fig 5.4
NO
COM.
ENB
GND
ENB
NC
Inverter is ON
when switch is ON
ON/OFF
switch
Fuse
Battery (+) voltage from the same
battery system that is feeding
PSR-1200-24/48 (current draw < 6mA)
NO
COM.
ENB
GND
ENB
NC
NO
COM.
ENB
GND
ENB
NC
Inverter is ON
when switch is ON
ON/OFF
switch
Fuse
External DC voltage source
● 10 to 40 VDC for PSR-1200-24
● 20 to 60 VDC for PSR-1200-48
(current draw < 6mA)
+10 to 40 VDC for PSR-1200-24
+20 to 60 VDC for PSR-1200-48
NO
COM.
ENB
GND
ENB
NC
Inverter is ON
when switch is ON
ON/OFF
switch
NPN Transitor Switch
Vcc return
Vcc
9
Base drive
● Base High (Transistor is ON) → The unit will switch ON
● Base Low (Transistor is OFF) → The unit will switch OFF
Fig 5.4 2-Wire Remote Control ON / OFF using ENB and GND Terminals and External DC Power Source