MDC
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-9222 Rev.6 P. 2 / 2
TERMINAL CONNECTIONS
Connect the unit as in the diagram below or refer to the connection diagram on the top of the unit.
■
EXTERNAL DIMENSIONS unit: mm (inch)
3
4
5
6
2
1
8
7
80 (3.15)
50 (1.97)
107 (4.21)
127 (5)
[3.3 (.13)]
80 (3.15)
20 (.79)
40 (1.57)
50 (1.97)
7.8 (.31)
CLAMP
(top & bottom)
DIN RAIL
35mm wide
2–4.5 (.18) dia.
MTG HOLE
15 (.59) deep
8–M3.5
SCREW
• When mounting, no extra space is needed between units.
■
CONNECTION DIAGRAM
+
–
SUPPLY OUTPUT
1
2
U
V
POWER
7
8
•
MDC-1 & -2
•
MDC-3
+
– (COM.)
24V REGULATED
1
3
2
U
V
POWER
7
8
+
40V UNREGULATED
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 terminal
7 – 8 with a multimeter.
3) Output: Check voltage across the terminal 1 (+) – 2 (–) or
3 (+) – 2 (–) with a multimeter.
4) Output: Check that output load is within the permissible
limit.
MDC-1, -2: 50mA max.
MDC-3: 65mA max. (the total of 24V/40V outputs)
ADJUSTMENT PROCEDURE
Output voltage adjustment is accessible via front potenti-
ometer behind the front cover.
1) Open the front cover so that OUTPUT ADJ. potentiom-
eter is exposed.
2) Connect a multimeter across the output terminal 1 (+) –
2 (–).
3) Turn the potentiometer clockwise or counterclockwise
until desired voltage reading is obtained.
LIGHTNING SURGE PROTECTION
M-System offers a series of lightning surge protector for
protection against induced lightning surges. Please contact
M-System to choose appropriate models.
