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16 INSTALLATION (ELECTRIC) AND SERVICE INSTRUCTIONS
4
Connecting to external equipment
(1) External system inputs
(no-voltage contact point static)
DI 1
DI 1
All stop input
All stop input
DI 2
All start input
DI 2
All start input
(reserved)
DI 3
Keep the input and output signal line lengths to under 65 ft. For distances greater
than this, install a standalone communication adaptor, or use a relay.
For use in areas that may be susceptible to electrical noise, use two-conductor
shielded cable (with one line grounded), with a cross-section of AWG#20 or greater.
Do not apply external voltages to the input terminals.
The input terminals use a sensing current of about 10 mA at 5 V DC.
The output terminal allowable contact voltage and current are 30 V DC, 0.5 A.
5
Power switch
The Intelligent Controller has a power switch.If the
LCD is blank after connecting power, check the
position of the power switch.
OFF
ON
Power
supply
terminals
Power
switch
OFF
7
Verify the system confi guration, make necessary settings
A Turn on power to all air conditioner units.
B Turn on power to the Intelligent Controller.
C Set the date and time on the Intelligent Controller and verify the system confi guration.
D Following the display on the Intelligent Controller, verify the number of units connected.
E Perform the necessary settings. Be sure to set the central control address.
8
Educating the customer
●
Give the Operating Instructions to the customer.
●
Explain the operation to the customer, following the explanations given in the Operating Instructions.
CZ-256ESMC1U̲改.indb 99
CZ-256ESMC1U̲改.indb 99
(2) External system outputs
(no-voltage contact point static)
Equipment
Equipment
(Output common)
All alarm output
All operation output
6
Power
switch
Power
supply
POWER
terminals
ON
Earth
terminal
(3) Pulse meter inputs
(no-voltage contact point pulse)
Equipment
P1
P2
P3
*1 Factory default setting (alterable)
Minimum pulse width 100 msec
Minimum pulse interval 1 sec
Circuit board diagram
Home key
S
6
D1
S7
HOME
D2
UP DOWN SET
Termination resistor
jumper for
communication
adaptor control wire
S1
1
3
CN1
Power supply
P
o
w
r e
s
w
c t i
h
terminals
* Ordinarily, there is no need to change any settings on the Intelligent
Controller board.
99
Gas flow meter
(Fuel flow meter)
Electricity meter 1
Electricity meter 2
7-segment LED
Up / down /set keys
S8
S
9
CN2
10
19
0
9
S
g i
n
a
t l
r e
m
n i
a
s l
2011/11/11 11:25:59
2011/11/11 11:25:59
*1
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