Honeywell HVAC232 Series, Applications Manual

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Application manual HVAC232/402 | Document 27-652 | Issue ENG06 | 2019-08-07 41
6 HVAC232/402 APPLICATION
INTERFACE
6.1 Introduction
There is only one version of Control Board available for the HVAC232/402
drive:
Table 16. Available Control Board
Version Composition
HVAC232/402
6 Digital inputs
2 Analogue inputs
1 Analogue output
1 Digital output
2 Relay outputs
RS-485 Interface
This section provides you with a description of the I/O-signals for
HVAC232/402 and instructions for using the HVAC232/402 general pur-
pose application.
The frequency reference can be selected from Preset Speed 0, Keypad,
Fieldbus, AI1, AI2, AI1+AI2, PID, Motor potentiometer.
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 output can be programmed as current or voltage output.
• Analogue input1 can be as voltage input, analogue input 2 can be pro-
grammed as current or voltage input.
SPECIAL FEATURES:
• Programmable Start/Stop and Reverse signal logic
• Motor pre-heat
• Reference scaling
• DC-brake at start and stop
• Programmable U / f curve
• Adjustable switching frequency
• Autoreset function after fault
• Protections and supervisions (all fully programmable; off, alarm,fault):
Analogue input low fault
External fault
Undervoltage fault
Earth fault
Motor thermal, stall and under load protection
Fieldbus communication
Output phase fault
Thermistor fault
• 8 preset speeds
• Analogue input range selection, signal scaling and filtering
• PID-controller