User Guide

30 API Honeywell
7
7. SMARTVFD COMPACT APPLICATION INTERFACE
7.1 INTRODUCTION
There are three versions of Application Interfaces (API) available for the SmartVFD
Compact drive:
This section provides you with a description of the I/O-signals for these versions and
instructions for using the SmartVFD Compact general purpose application.
The frequency reference can be selected from the analogue inputs, fieldbus, preset
speeds or keypad.
Basic properties:
• Digital inputs DI1…DI6 are freely programmable. The user can
assign a single input to many functions
• Digital-, relay- and analogue outputs are freely programmable
• Analogue input 1 can be programmed as current or voltage in-
put in API Limited version
Special features in all API versions:
• Programmable Start/Stop and Reverse signal logic
• Reference scaling
• Programmable start and stop functions
• DC-brake at start and stop
• Programmable U/f curve
• Adjustable switching frequency
• Autorestart function after fault
• Protections and supervisions (all fully programmable; off, warn-
ing, fault):
API Full API Limited
API RS-485 (Modbus
RTU)
6 Digital inputs 3 Digital inputs 1 Digital input
2 Analogue inputs 1 Analogue input 1 Relay output
1 Analogue output 1 Relay output
RS-485 Interface
1 Digital output
RS-485 Interface
2 Relay outputs
RS-485 Interface
Table 7.1 : Available Application Interfaces