Exv Driver Board; Ai - 2 X Ao Board - Carrier Pro-Dialog CONTROL 4 User Manual

3.1.6 - EXV BOARD
The EXV board shall be able to control 2 EXV's and 2 thermistors.
Analog inputs requirements
Connector
J3 (TH A)
J3 (TH B)
Discrete output requirements
The EXV board shall be able to drive both unipolar and bipolar stepper motors via a common connector. The
default configuration shall be unipolar, 30 steps/s step rates and 1500 steps range such as to allow easy retrofit
with Pro-Dialog phase 1, 2 and 3 units fitted with Mueller Brass EXV's. It shall be able to handle 12V @ 0.5 A per
coil and maintain a step rate of at least 200 steps per second (unipolar or bipolar).
Note: board shall be able to handle a total coil load of 1 Amp for unipolar and 2 Amps for bipolar.
Connection to the EXV shall be done through two Molex, 5 pin, 3.91 pitch (one per EXV) [J2A & J2B].
1
Coil 1
3.1.7 - 4xAI-2xAO BOARD
This board provides 4 analog inputs (labeled AI #1, AI #2, AI #3, and AI #4 on the terminal J2) and 2 analog
outputs (labeled AO #1 and AO #2 on the terminal J1). It allows to use the following features:
w Optional reclaim thermistors when reclaim option is not used
w Remote discharge transducer on remote condenser on split units.
w Optional varifan on air cooled units or water valve on water cooled units
Each input can be independently configured with a bridge allowing to close 3 pair of pins named T,C or V.
ANALOG
INPUT
AI #1
AI #2
Downloaded from www.Manualslib.com
CARRIER SA
30GX&HX PRO_DIALOG 4 V.2
AI Type
#*
1 5/10 K thermistor Economizer Motor Cooling TQ Valve Feedback Signal Circuit A
2 5/10 K thermistor Economizer Motor Cooling TQ Valve Feedback Signal Circuit B
Connector J2A & J2B - Pins description
2 3
Coil 2 Coil 3
BRIDGE FUNCTION
POSITION
T,C unused
V Pressure transducer
(remote discharge
pressure circuit A)
T,C unused
V Pressure transducer
(remote discharge
pressure circuit B)
NOT TO BE DISCLOSED TO PERSONS OUTSIDE CARRIER ORGANIZATION
manuals search engine
USER'S GUIDE FOR
Usual Functions
4 5
Coil 4 12VDC (for unipolar stepper motor)
J2
PINS
1 - R unused
V - 1 - R V: Transducers 5 Volts power supply
1: Signal
R: -
1 - R Carrier thermistor: HH 79NZ 047, 5K@ 25°C
V - 1 - R V: Transducers 5 Volts power supply
1: Signal
R: -
© C .
ARRIER S A
ECG-UG-02-002
Page: 14/98
Rev: original
REMARKS