7. Connection Diagram
* For model with Triac (SSR), motor
power supply voltage range must be 20
~ 120V AC.
It is recommended that the fuse between
terminal
and the power supply termi-
nal be used to protect motor upon mal-
function.
(Current rating for fuse must be approx-
imately twice the size which is appro-
priate for the motor for which it is being
used.)
2
CONTACT
TRIAC
•
Make sure the motor power supply matches the rating of the motor to be used.
•
For inverting the operating direction of motor (to open with input at 0% and close with
input at 100%), permute the wires for terminals
and
as well as those for termi-
nals
and
respectively.
11
9
3
1
CW
: Clockwise rotation (open)
CCW : Counterclockwise rotation (closed)
8. Adjustment
8-1. Characteristic of Input Signal vs. Operating Output
8-2. Adjustment of Operating Output
Confirm that the final control element is at 100% or the open position when 100% input signal is applied and at 0% or the close d posi-
tion when 0% input signal is applied.
If there is any dislocation at the 0% position, adjust the Zero trimmer. In the case of dislocation at the 100% position, adjus t the Span trimmer.
Note: Since the reaction of the final control element is normally slow, adjust the Zero and Span trimmers slowly.
8-3. Adjustment of Deadband (DB)
The deadband refers to the sensitivity between the clockwise (open) and counterclockwise (close) actions of the control motor.
If the control motor repeats quick hunting, turn the deadband from the narrow band gradually to the wide band until hunting sto ps.
If the deadband is set unnecessarily wide, the control motor may be dull in response.
(The deadband may be variable within 1 to 10% of the input signal range.)
9. Relay Application Diagram
Characteristic
Run
Increased
Balanced
Decreased
M2 - M1: ON (Open)
M2 - M1, M3: OFF (Stop)
M2 - M3: ON (Close)
RA
Heat
DA
Cool
LED Green lights.
LED goes out.
LED Red lights.
The contents of this manual are subject to change without notice.
Temperature and Humidity Control Specialists
Head Office: 2-30-10 Kitamachi, Nerima-Ku, Tokyo 179-0081 Japan
Phone: +81-3-3931-7891 Fax: +81-3-3931-3089
E-MAIL: [email protected] URL: http://www.shimaden.co.jp
PRINTED IN JAPAN
F: Fuse
R2
R1
R3
M2
F
M1
M3
10
9
11
2
1
3
10
9
11
2
1
3
7
8
4
5
6
1
2
3
CW CCW
F. B POT.
CCW(closed)
CW(open)
Control Motor
Motor Power
Supply
AC Power
AC Power
CCW(closed)
CW(open)
CW
POT
EM51
DC
INPUT
U
V
POT
R2
R1
R3
M2
M1
M3
CCW
F. B POT.
Control Motor
Motor Power
Supply
7
8
4
5
6
1
2
3
EM51
DC
INPUT
U
V
Open
ZERO
ZERO
SPAN
SPAN
100%
100%
70%
50%
20%
0%
0%
50%
100%
Zero & Span Adjustment
0%= 0 ~ 20% (ZERO)
100%=70 ~ 100% (SPAN)
Input Signal
D. BAND
COM
NO
NO
M2
M1
M3
COM
NO
NO
M2
M1
M3
COM
NO
NO
M2
M1
M3
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