7
Installation Guide
Bettis Q-Series
DOC.IG.BQC44.1 Rev. 1
February 2017
4.2 Connecting Mechanical Feedback switches
IMPORTANT
The below mentioned typical switch specifications
are applicable for non-hazardous areas.
1. Before connecting the switches, check the
model code on the Control Module label.
QCXX.xxxMxx =
Mechanical switches
QCXX.xxxGxx =
Mechanical switches
(gold plated)
2 Guide the cable(s) through the electrical
entry(ies).
- Use and mount cable glands as required by
national or local legislation.
3. Make connections as shown in figure 4.6 and
table 4.3/4.4
4. Mount the Control Module cover. Take care that
the cover seal is in place to comply to dust and
water tightness according to IP66 or NEMA4X.
IMPORTANT
For hazardous area installations see instructions in
Chapter 11.
Table 4.3 Mechanical switches
Option code M
Option code G (gold contacts)
Type
Mechanical
Voltage
M: 277 VAC or 250VDC (maximum)
G: 125 VAC or 30VDC (maximum)
Contacts
NO and NC
Temperature See table 4.1
Notes:
1. The mechanical (M-type) switches are rated for
3 A with inductive load.
2 The mechanical (G-type) switches have gold
contacts. For applications where the benefits
of gold contacts are required, the maximum
current is 0.1 A.
Wiring diagram:
- M = Mechanical
- G = Mechanical, gold contacts
Cable range : 0.2 - 2.5mm
2
or 30-12AWG
1 Wiring diagram shown, is applicable for actuators with
assembly code “CW”. For actuators with assembly code “CC”
(reverse acting) the “Open” and “Closed” switch connections
are also reversed.
2 Wiring diagram is shown in the actuators mid-stroke position.
Fig 4.6
Wiring diagram mechanical switches
Fig 4.5
Adjustable switch range and factory settings
-3°
15°
75°
93°
0°
90°
Contact
Switch signal and adjustable
switch range
Close
switch
Open
Switch
Rotation
Switched
Unswitched
Switch
operation
Normally
Open
Contacts
Si
gn
al
Open
Close
Table 4.4 Maximum currents mechanical switches
Switch voltage M type switch G type switch
125 VAC
10 A (3 A
1
)
0.1 A
2
250 VAC
10 A (3 A
1
)
-
30 VDC
0.5 A
0.1 A
2
125 VDC
0.5 A
-
250 VDC
0.25 A
-
