Q7130A, Q7230A, Q7330A MODUTROL IV INTERFACE MODULES
63-2235—07
4
Fig. 3. Q7130A terminals and adjustments.
Fig. 4. Typical system wiring for Q7130A Interface Module
and M91XX Modutrol Motor.
Q7230 Adjustments (Fig. 5 and Table 3)
The Q7230A provides adjustable range (zero and span) for
two-wire current or voltage control. Separate potentiometers
are provided on the circuit module for adjusting the zero point
and the span. It includes a cw/ccw switch for configuring the
motor to rotate clockwise or counterclockwise with an
increase in control signal.
1.
Set Mod IV motor pots—both CW or both CCW for your
application. Use the checkout procedure in Table 3 to
ensure proper motor function.
2.
Verify that the zero potentiometer is fully clockwise and
that the span potentiometer is fully counterclockwise.
(Do not exceed the stop point of the potentiometer.)
3.
Select desired rotation direction [cw (electrically nor-
mally closed) is the most common]. The following direc-
tions apply for the clockwise setting. For
counterclockwise setting, reverse open and closed, and
reverse clockwise and counterclockwise. Remove film
on switch before use. (Default switch position is CW.)
4.
See Fig. 7 and 8 for typical system wiring.
5.
For current control, connect the current input signal to I+
(screw terminal 3) and COM (screw terminal 5). For
voltage control, connect the voltage input signal to V+
(screw terminal 1) and COM (screw terminal 5).
6.
Set the controller to output the signal required to drive
the motor to the closed position. Wait for the motor to
stop driving closed.
7.
Turn the zero potentiometer slowly counterclockwise
until the motor starts to open.
8.
Turn the zero potentiometer slowly clockwise
until the motor is fully closed. This is defined as the zero
setting.
9.
Set the controller to output the signal required to drive
the motor to the fully open position. Wait for the motor to
stop driving open.
10.
Turn the span potentiometer slowly clockwise
until the motor starts to drive closed. The difference
between the fully open position signal and the fully
closed position signal is defined as the operating span.
11.
Recheck the fully closed position and readjust the zero
potentiometer, if necessary. (Turn the zero potentiome-
ter clockwise
to close the motor and counter-
clockwise
to open the motor.)
M27212
T1 T2
F
C+
A–
10.5-13.5
CCW
CW
6.9
4.7
POWER SUPPLY. ADD DISCONNECT MEANS AND OVERLOAD
PROTECTION AS REQUIRED.
OPTIONAL NORMALLY OPEN SWITCH. WITH CCW SELECTION,
MOTOR WILL RUN TO FULLY CLOSED; WITH CW SELECTION
MOTOR WILL RUN TO FULLY OPEN WHEN THIS SWITCH CLOSES
(AS LONG AS POWER IS APPLIED TO T1, T2 TERMINALS).
OPTIONAL NORMALLY CLOSED SWITCHES. FINE SILVER OR
DRY CONTACTS REQUIRED. WITH CCW SELECTION, MOTOR
WILL RUN TO FULLY OPEN; WITH CW SELECTION, MOTOR WILL
RUN TO FULLY CLOSED WHEN SWITCH IN EITHER C OR R
LEAD IS OPENED.
1
M505C
T1
T2
24V
L1
(HOT)
L2
MODULATING
DC VOLTAGE
SOURCE
C
R
3
+
–
TRANSFORMER
2
3
1
F
3
MOTOR
2
Table 2. Q7130A/M91XX Checkout Procedure.
Step
Proper Motor Response Switch in
Clockwise Position
Switch in Counterclockwise Position
1.
Open terminal C or R.
Motor runs closed (fully ccw).
Motor runs open (fully cw).
2.
Jumper terminals C and F.
Motor runs fully open (fully cw).
Motor runs fully closed (fully ccw).
3.
Remove either T terminal or disconnect
power supply.
Spring return motors return to normal spring position (fully ccw
for
mechanically normally closed motors; fully cw
for mechanically normally
open motors).