User guide

OVERVIEW
17
Rear Panel Overview
BEFORE REPLACING FUSE
DISCONNECT POWER CORD
WARNING
23 0V
FUSE RATING
AS SPECIFIED
250 V
T10A
REPLACE FUSE
11 5V
AC
50/ 60 Hz
550 W ATTS
900 VA MAX
CH3CH2CH1
O.V.P. SETNORMAL
ON
OFF
SER. NO. LB
OVP Settin
g
Point
Remote Control
Terminal
Power Cord / Fuse
Socket
Cooling Fan
Remote control
terminal
Accepts remote output On/Off
control connection. For details, see
page39.
OVP setting point
CH3CH2CH1
O.V .P. SETNORMAL
Activates Over Voltage Protection
(OVP) and sets the protection
threshold for channel1/2/3. For
OVP setup details, see page22.
Power cord / fuse
socket
The power cord socket accepts the
AC mains: 115V/230V, 50/60Hz.
For power up details, see page20.
The fuse holder contains the AC
main fuse. For fuse replacement
details, see page57.
SPD-3606 User Manual
18
CV/CC Crossover Characteristics
Background
SPD-3606 automatically switches
between constant
voltage mode (CV) and constant current mode
(CC), according to load condition.
When the current level is smaller than
the output setting, SPD-3606 operates
in Constant Voltage mode. The
indicator on the front panel turns green
(C.V.) The Voltage level is kept at the
setting and the Current level fluctuates
according to the load condition until it
reaches the output current setting.
C.V.
C
.C.
When the current level reaches the
output setting, SPD-3606 starts
operating in Constant Current mode.
The indicator on the front panel turns
red (C.C.) The Current level is kept at
the setting but the Voltage level
becomes lower than the settin
g
, in order
to suppress the output power level
from overload. When the current level
becomes lower than the setting, SPD-
3606 goes back to the Constant Voltage
mode.
C.V.
C.C.
Diagram
Vmax
Imax
Constant
Voltage
Constant
Current
Vout
Iout