7 QZ 70 en
5
Temperature Range:
-40 ºC to 82 ºC
ID/IO Codes:
ID = A; IO = 4; ID1 = 7; ID2 = E
Default Address:
0A
Bit Assignment:
Inputs
Outputs
Bit 1 = Aux Input 1 Bit 1 = Not Used
Bit 2 = Aux input 2 Bit 2 = Not Used
Bit 3 = Green LED Bit 3 = OUT 1
Bit 4 = Red LED
Bit 4 = Not Used
Position Transmitters
(50, 70)
Output:
4–20 mA
Voltage range:
10 to 40 V DC
Recommended voltage: 24 V DC, 50 mA minimum
Max load:
700
Ω
/ 24 V DC
(See load curve, Fig. 2))
Span:
Adjustable from 35° to 270°
Max linearity error:
Standard (_5_) potentiometer
± 0.85°
High perf. (_7_) potentiometer
± 0.35°
Temperature range:
-40 °C to 80 °C
1.4
CE marking
The limit switch meets the requirements of the Euro-
pean Directives and has been marked according to the
Directive.
1.5
Recycling and disposal
Most limit switch parts can be recycled if sorted
according to material. See the list below for materials.
In addition, separate recycling and disposal instruc-
tions are available from us. A limit switch can also be
returned to us for recycling and disposal against a fee.
1.6
Safety precautions
2
MOUNTING
1. Attach mounting plate to actuator using fasteners
and lockwashers provided.
2. Loosen indicator cover set-screw.
3. Rotate indicator cover to desired viewing angle and
retighten set-screw. (Make sure indicator cover is
pushed all the way into housing slot.)
4. Rotate coupling spacer and indicator drum to
desired position. (OPEN or CLOSED appearing
through indicator window.)
5. Remove spacer screw and fit reinforcer and cou-
pling into coupling spacer or Namur coupling. Sep-
arate spacer and indicator drum and rotate spacer
to align coupling with actuator shaft. Fit coupling
spacer over indicator drum drive hub.
6. Secure torque coupling assembly or Namur cou-
pling with screw of proper length. (Additional cou-
pling spacers and longer screw may be required on
some mountings.)
7. Slide Thru-Bolts with washers into housing and fit
retaining quad-rings over bolts to retain them.
8. Top of actuator shaft should be within 6.35 mm (1/4")
from torque coupling screw head or Namur coupler.
9. Torque coupler or Namur coupler must be fully
engaged in slot and be centered on the shaft or
block attached to the shaft.
10.Operate actuator to full open and full closed posi-
tions and check for proper alignment between
switch and actuator. Eccentricity of shaft must not be
greater than 0.25 mm (0.01") from centerline. The
torque coupler or Namur coupler must be centered
on the flats of the actuator shaft or block in both the
full open and full closed position. Realign as neces-
sary and final tighten Thru-Bolts.
11."Fine-tune" visual indicator cover repeating steps 2
and 3 and lightly tighten set screw.
Fig. 2
Load curve (_5_)
CAUTION:
Do not exceed the permitted values!
Exceeding the permitted values marked on the limit
switch may cause damage to the switch and to equip-
ment attached to the switch and could lead to uncon-
trolled pressure release in the worst case. Damage to
the equipment and personal injury may result.
5
10
15
20
25
30
35
40
200
400
600
800
1000
1200
1400
1600
Load curve
Power Supply Voltage
Loop
Resistance
Operating
Region
CAUTION:
To prevent ignition of hazardous atmospheres,
replace cover before energizing the electrical circuits.
Keep cover tightly closed when in operation.
Fig. 3
Mounting and switch setting steps
9
2
3
4
4
5
6
NA
MUR
8
1
10
10
5
6
5
3
*
, 3
**
2
*
, 2
**
