Limit Switches; Figure 34: Limit Switch Board - Flowserve Logix 520MD+ User Instructions

7.5 Limit Switches

Limit switches provide an independent verification of the position
of the feedback shaft. Wire the limit switches according to Table 15:
Limit Switch Connections. For more information, see Table 7: Limit
Switch Specifications on page 11. See Figure 34.
Table 15: Limit Switch Connections
Switch
Mechanical
Cherry DG 13-B2RA
1 & 4 NC
Reed
Hamlin 59165-1-S-00-C
NO
Inductive Sensor
P&F NJ2-V3-N
NAMUR NC
Inductive Proximity
P&F SJ2-S1N
NAMUR NO
Inductive Proximity
P&F SJ2-SN
NAMUR NC
Inductive Sensor
P&F NBB2-V3-E2
PNP NO
General Purpose Only
32
Logix
Terminal (See Figure 34)
1 2 3 4
NC NO C NC
+ + - +
LS1
+ - +
LS1 LS2
BN BU BN
+ - +
LS1 LS2
BN BU BN
+ - +
LS1 LS2
BN BU BN
+ - +
LS1 LS2
BN BU BK BN
Vcc+ - SW+ Vcc+
LS1
520MD+ and 510+ Digital Positioners FCD LGENIM0105-15-AQ – 05/16
®
5 6
NO C
+ -
LS2
-
BU
-
BU
-
BU
-
BU BK
- SW+
LS2

Figure 34: Limit Switch Board