Electrical Installation 2 - 10
See Table 2.6 for DIP switch positions required to achieve these functions.
Building Automation System Run/Stop Circuit:
A control terminal block position (TB1, terminals 2 and 9) is provided to connect the Normally Open (NO) Run/Stop contact
from a BAS or other remote controller
for auto mode control.
There must be continuity between these terminals in order for the motor to run, in auto mode.
Safety Interlock Circuit:
A control terminal block position (TB1, terminals 1 and 9) is provided to connect the series circuit of Normally Closed (NC)
safety devices such as: freeze up thermostats, smoke/fire sensors, high pressure limits, temperature limits or vibration
detectors.
On power up the E7N will display a red “Safety Open” LED in the “System Status” area of the front control panel if a nor-
mally closed “Safety Circuit” has not been installed between TB1-1 and TB1-9 on PCB A2. This condition will prevent Drive
or Bypass operation.
1 of 3 items needs to be done before the motor can be started:
1) Install a NC “Safety Circuit” between TB1-1 and TB1-9 on PCB A2.
2) Install a jumper between TB1-1 and TB1-9 on PCB A2. This method should be used if a “Safety Circuit” will be
added later in the installation.
3) De-activate these terminals by moving DIP switch S2-7 to the ON position (toward the enclosure door). This solution
is only suggested if a “Safety Circuit” will never be applied to the drive system.
Building Automation System Interlock Circuit (Drive and Bypass enable input):
A control terminal block position (TB1, terminals 3 and 9) is provided to connect Normally Open (NO) enabling contacts such
as: damper end switches or occupied cycle timers.
Table 2.6 DIP Switch Settings for Output Relay Functions
No.
Function
Programmable
Relay 1
Programmable
Relay 2
Programmable
Relay 3
Active*
Function
Description
S2(6) S2(5) S2(4) S3(3) S3(2) S3(1) S3(6) S3(5) S3(4)
1
Bypass Run
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ENERGIZED
Running in Bypass mode
2
Damper Coil
OFF
OFF
ON
OFF
OFF
ON
OFF
OFF
ON
ENERGIZED
Damper actuator activation
3
Auto Transfer
OFF
ON
OFF
OFF
ON
OFF
OFF
ON
OFF
ENERGIZED
Auto-Transfer is active
4
Drive Run
OFF
ON
ON
OFF
ON
ON
OFF
ON
ON
ENERGIZED
Drive is in the Run mode
5
Serial Com. Run
ON
OFF
OFF
ON
OFF
OFF
ON
OFF
OFF
ENERGIZED
Serial Comm. Run command
6
Hand Mode
ON
OFF
ON
ON
OFF
ON
ON
OFF
ON
ENERGIZED
Manual mode operation
7
Auto Mode
ON
ON
OFF
ON
ON
OFF
ON
ON
OFF
ENERGIZED
Auto mode operation
8
System Fault
ON
ON
ON
ON
ON
ON
ON
ON
ON
DEENERGIZED Drive, motor or control fault
Factory Settings
ON
OFF
ON
ON
ON
OFF
ON
ON
ON
* ACTIVE = RELAY CONDITION DURING FUNCTION
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