YASKAWA E7LBA002, Technical Manual

Page: 41 / 306

Electrical Installation 2 - 9
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Annunciation Contacts
Contacts for customer use are provided and wired to TB1 and TB2 as follows for use as annunciators of Bypass unit operation.
All are 5 amp at 120 VAC contacts.
Programmable Output Relays 1, 2 and 3 may be re-programmed via DIP switches S2 and S3 on the Bypass Control PCB A2.
These relays provide form C “dry contacts” for customer use in annunciation to Building Automation Systems or general duty
in other control logic circuits. Each contact is rated for 5 amps at 120 VAC.
The additional programmable output relay functions are described in the table below:
See Table 2.6 for DIP switch positions required to achieve these functions.
Table 2.4 Output Relays - Factory Defaults
Function Name (E7L-00) Terminal Block Terminals Type
Motor Run Motor Run * TB1 10-11 Form A
Hand Mode Relay 1 @ TB1 12-13-14 Form C
Auto Mode Relay 2 @ TB2 1-2-3 Form C
System Fault Relay 3 @ TB2 4-5-6 Form C
* = Dedicated
@ = Programmable
Table 2.5 Programmable Output Relay Functions
Function Description Factory Default
Bypass Run Annunciates running in Bypass mode No
Damper Actuator
Intended to close a contact in a damper actuator circuit
whenever the motor is commanded to run (operation similar
to the dedicated “Motor Run” relay)
No
Auto Transfer
Annunciates automatic transfer to Bypass operation due to a
Drive fault
No
Drive Run Annunciates running in Drive mode No
Serial Com Run
Annunciates that the run command is coming from serial
communications
No
Hand Mode
Annunciates that the Drive or Bypass is being operated in
Hand (local) mode
Relay 1
Auto Mode
Annunciates that the Drive or Bypass is being operated in
Auto (remote) mode
Relay 2
System Fault
Annunciates that a Drive, motor overload or control circuit
fault has occurred
Relay 3
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