COMEM eSDB-10C Manual De Instrucciones página 7

CAUTION
During the assembly of terminal box, be careful to avoid any
damage of the OR gasket. If this occurs it must be substituted.
Figure 8
To wire the dehydrating breather, open the terminal box
(Fig.14-15/C). An external ground screw is positioned on
the upper flange (Fig. 14-15/G).
Power voltage
First, connect protective ground externally (Fig.14-15/G).
Connect the power voltage (as written on the label on the
terminal box cover) to terminals 31- 32.
Remove the fast plug-in pulling the wire (Fig.9/A), connect
the supply voltage wires in accordance to the label
electrical scheme (Fig.8) and connect again the plug-in.
A
Figure 9
Figure 10
Relay
Standard Configuration
There are 2 contact failures:
• 1 x change over contact: POWER FAILURE
(terminal 22-24-21)
- NO contact: terminals 24-21
- NC contact: terminals 21-22
After supply voltage:
- NC contact: terminals 24-21
- NO contact: terminals 21-22
• 1 x change over contact: SYSTEM FAILURE
(terminal 12-14-11)
- NO contact: terminals 14-11
- NC contact: terminals 11-12
Special Configuration
There is one-contact failures:
• 1 x NC contact: POWER FAILURE (terminal 22-21)
- NC contact: terminals 21-22
After supply voltage:
- NO contact: terminals 21-22
• 1 x change over contact: HEATER ON
(terminal 12-14-11)
- NO contact: terminals 14-11
- NC contact: terminals 11-12
CAUTION
The alarm relays (contact failure) will not trip the transformer.
Analog Output (optional)
Terminals for analog output 4-20 mA: 41-44.
Digital Output (optional)
Digital output RS485: terminals 3-4.
CAUTION
Close the free cable gland with a plug or gasket if both cable
glands are not used.
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