Zener MSC-3 User Manual

IM00120
38
IM00120
Quick Setup for Cong 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 congured 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 conguration
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
reect the range of the signal, typically 4-20mA or 0-10V. For more information, see page
105
See page 45
for additional
details

Zener MSC-3 Specifications

General

Brand	Zener
Model	MSC-3
Category	Controller
Language	English