EC7830A, RM7830A, EC7850A, RM7850A 7800 SERIES RELAY MODULES
32-00198—01 18
Fig. 7. Selectable site-configurable jumpers.
Table 7. Site-configurable jumper options.
a
EC7850A1148 or RM7850A1035
Intact—3 seconds Clipped—2 seconds
IMPORTANT
Clipping site-configurable jumpers after 200
hours of operation results in a nonresettable Code
110, LOCKOUT. The relay module must be
replaced.
Flame Signal Measurement
Measure the flame signal at the appropriate times as
defined in the applicable flame amplifier specifications.
SAFETY AND SECURITY
Physical device protection
Device shall be accessible to authorized personnel only –
Installation on publicly accessible places is not
recommended as this could lead to unwanted and
potentially unsafe changes to device (wiring,
configuration, etc).
It is recommended to lock the device in an enclosed
cabinet with access allowed only to approved and trained
personnel. Also, it is strongly advised to keep all the wiring
of device physically secure.
Physical protection of the device is applied via Run/Test
switch label/seal. It is intended to prevent and detect
unauthorized access.
Modbus & DDL Interface security
Any conducts critical to device functionality (DDL,
Modbus lines etc.) shall be physically protected (installed
outside public access) since they could be damaged or
tampered-with by unauthorized people, either
accidentally or for purpose.
Modbus RS-485 & DDL protocols do not support security
features. For DDL interface - only DDL devices shall be
connected to the Burner Controller DDL line.
License agreement
Copying and reverse engineering is prohibited by the law.
Jumper
Number Description Intact Clipped
JR1 First Safety Time 5 seconds
a
3 seconds
a
JR2 Main Trial Time 5 seconds 3 seconds
JR3 Airflow Switch No Yes
RUN/TEST SWITCH
SELECTABLE CONFIGURATION
JUMPERS
M7701B
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