■
CONNECTION DIAGRAM
+
–
+
–
AC
POWER
UNIT
4
5
FG
3
U
V
AC POWER
FG
3
2
1
+
–
+
–
■
DC Power Supply
■
AC Power Supply
OUTPUT 1
OUTPUT 1
Ch.1
OUTPUT
Ch.4
OUTPUT
OUTPUT 1
OUTPUT 1
+
–
+
–
OUTPUT 2
OUTPUT 2
Ch.1
OUTPUT
+
–
+
–
OUTPUT 2
OUTPUT 2
Ch.4
OUTPUT
POWER
+
–
CHECKING
1) Terminal wiring: Check that all cables are correctly con-
nected according to the connection diagram.
2) Power input voltage: Check voltage across the power ter-
minals.
3) Installation & environment
MAINTENANCE
Power units’ standard life is expected for 10 years with
average ambient temperature 35°C (95°F) and 1.0A load.
Contact M-System for use in extremely different conditions.
■
HOW TO REPLACE THE POWER UNIT (power input code: M2)
1) Prepare Power Unit (switching regulator) model HDC10.
2) Turn off the power supply connected to the Power Unit.
3) Remove the wire binding and wiring connected to the ter-
minal 1 – 2 and 4 – 5.
4) Loosen and remove the mounting screws A (4 places).
5) Detach the Power Unit from the Installation Base.
6) Attach the new Power Unit to the Installation Base and
tighten the screws in reverse order as explained above.
Note: For questions on products purchased before 2009, please
contact M-System.
3
4
5
2
1
V.ADJ
A
A
A
A
A
1
2
3
4
5
: Mounting screws with
washer, M3 x 6 (4 pls.)
: 24V DC (+)
: 24V DC (–)
: FG
: AC power input (U)
: AC power input (V)
M8BS2-042
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: +81(6)6659-8201 Fax: +81(6)6659-8510 E-mail: [email protected]
EM-5478-2 Rev.4 P. 3 / 3
