Zener MSC-3, Инструкция по эксплуатации

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RL1 RL2
Input reference source
8 9 10 11 12
+
-
MSC - 3 Control Board
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
Stop Run
1k to 10k ohm
potentiometer
Single direction
2 wire control
with ESO
Local Remote
Optional Output Disable
Essential
Services Override
Power up start up
with ESO
1 2 3 4 5 6
Essential Services
Override
Optional
O
O
C
RL2 - Trip
Power On
and Stopped
C Power On
Drive
Running
RL1 - Run
No Power
Power On
and not
tripped
Power On,
and drive
tripped
O
O
No Power
+5V D1 D2 D3 D4 EN SCN Vref IN+ IN - COM
A B C
RS-485 / EIA-485
Serial Communications
IM00120
32
IM00120
Control connections and configuration
HVAC Terminals Typical Connection Diagram – Terminal Config 3
General
This section shows the typical configuration applicable to pump and fan drives in the HVAC industry.
Typically these will be controlled from an external speed signal, frequently supplied from the output of
a building management system. Specific setup instructions are provided for the more common HVAC
applications in the sections that follow this.
i
Essential Services Override
(ESO)
See page 51 for detailed
information
See page 43
for details
Optional Wiring
If selection between
local and remote is
not required, place a
link between terminals
1 and 5. If the output
disable is not required
place link between
terminals 1 and 6
Local / Remote
In “local” the MSC-3
is controlled from
the front panel
console. In “remote”
the MSC-3 is
controlled from the
terminal strip.
i
The function of terminals
D1...4 are programmable. In
this configuration the following
functions are assigned to the
terminals:
I02 ~ STOP D1
I00 FWD & LATCH D2
I08 ESO D3
I11 REMOTE D4