Zener MSC-3, Инструкция по эксплуатации

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IM00120
38
IM00120
Quick Setup for Config 3.
Application: Stair pressurisation fan with internal PID
This setup is for a typical HVAC stair pressurisation fan application that requires air pressure control
using an air pressure transducer and PID controller function provided by the MSC-3 extended
features option. The MSC-3 is configured to run in essential services override (ESO) mode. Prior to
commissioning, you will need to know the type of air pressure transducer signal that is to be used
(0-10V,4-20mA etc).
Procedure
STEP 1
Complete the power wiring according to the instructions on pages 9 to 18
STEP 2 Connect the control wiring as shown.
CAUTION
Do not connect the wire
to terminal 6 yet.
The terminal configuration
should not be changed
while the MSC-3 is
enabled.
1 2 3 4 5 6 7 8 9 10 11
+5V D1 D2 D3 D4 EN COM SCN Vref IN+ IN -
MSC - 3 Control Board
DIG
+
-
Power up start
MSC-3 Extended
Features Option
IN+ IN-
32 34
Air pressure
transducer
i
Essential Services
Override (ESO)
See page 51 for
detailed information
STEP 3 Connect the signal wiring from the air pressure transducer as shown. Consult the
pressure transducer manufacturer’s literature for power supply requirements of the
transducer.
Go to the G00 INPUT/OUTPUT menu and select G10 AI(32,34). Set G100 for the type of
pressure transducer signal (mA or voltage). Set G101 Min Input and G02 Max Input to
reflect the range of the signal, typically 4-20mA or 0-10V. For more information, see page
105
See page 45
for additional
details