User Guide
Table Of Contents
- Physical Installation
- Electrical Installation
- Wiring Guidelines
- Branch Circuit Protection
- Wire Sizing
- Power Wiring Connections
- Control Circuit Connections
- Example Configurations
- 4-20mA Speed Control Signal from an External BMS or PLC:
- 0-10V Speed Control Signal from an External BMS or PLC:
- 4-20mA Transducer with VFD 10 VDC Power:
- 4-20mA Transducer with VFD 24 VDC Power:
- 4-20mA Transducer with External 24 VDC Power:
- 0-10VDC Transducer with VFD 10 VDC Power:
- 0-10VDC Transducer with VFD 24 VDC Power:
- 0-10VDC Transducer with External 24 VDC Power:
- Temperature Protection or PID Control with PT-100 or PTC Sensor:
- Speed Control using 0-10 VDC Potentiometer:
- Relay switching to control an external starter, contactor, or other system:
- External HOA switch:
- Drive Configuration
- Operation
- Default Settings Tables
- Safety Information
OPERATION
Fireman’s Override
15
Damper Output Terminal [IO–47 through 49]: Connect the damper actuator to one of the Relay Outputs (RA1–3), and set the cor-
responding parameter to 38_Damper Output.
Damper Limit SW Terminal [IO–21 through 28]: If the system includes a damper limit switch, connect the switch to one of the Dig-
ital Inputs (MI1–8) and set the corresponding parameter to 34_Damper Limit SW.
Auto Restarts [PROT-10]: The number of times the VFD will try to restart after a fault.
Auto Retry Delay [PROT-11]: The time delay before the VFD attempts to restart after a fault.
Fireman’s Override
Fireman’s Override (FO) provides the ability to force the drive to run exhaust fan to purge smoke from fire in the building by activat-
ing FO digital input. This mode is available for Basic and Exhaust fan applications.
In FO mode, if Damper Mode is enabled [IO–36], the damper relay output will be activated, but damper time delay [IO–37] will reduce
by half before VFD starts. The VFD will not monitor a Damper Switch, if present, and no damper faults will be available. Set the fol-
lowing parameters to use the FO function:
FO Input Terminal [IO–21 through 28]: Connect the FO switch to one of the Digital Inputs (MI1–8) and set the corresponding
parameter to either 32 FO with RUN Cmd or 33_FO w/o RUN Cmd.
FO Enable [IO–29]: Enables FO in either Forward or Reverse.
FO Frequency [IO–30]: Setpoint for non-PID operation during FO.
FO Fault Retry [IO–31]: Number of fault resets allowed during FO.
FO Retry Delay [IO–32]: Delay until restart during FO.
FO Mode & Reset [IO–33]: Sets control method and reset method during FO (PID Off Manual, PID Off Auto, PID On Manual, or PID
On Auto).
NOTE: FO Mode overrides all non-critical faults. When FO is activated, the Auto Retry Delay (PROT-11) is ignored and the current
fault, Prot-11 Delay timer, and Auto Restart counter will be reset.
FO PID S-Point [IO–34]: Setpoint for PID operation during FO.
FO Bypass [IO–72]: Enables Bypass for FO.
FO Bypass Delay [IO–73]: Time delay between FO becoming active and enabling relay output.