Flowserve 10–40 39 ACCESS M Mounted Limit Switch - Manual (Page 2)

2 10–40 39 ACCESS M Mounted Limit Switch and Solenoid with AS-Interface WCAIM2032
b. Electronic and Mechanical data of printed circuit board:
• supply power for AS-Interface module, solenoid and
switches/NAMUR proximity sensors via AS-Interface
• AS-Interface voltage 26.5 - 31.6 VDC
• maximum supply current including activated solenoid
125 mA
• operating temperature -25 to +70°C
• storing temperature -25 to +85°C
• printed circuit board dimensions (51 x 51 mm)
• connection of two switches/NAMUR proximity sensors
with wires
• connection of one solenoid with wires
• connection of AS-Interface with wires
c. Indication:
• switching states of the switch/NAMUR proximity sensor -
inputs:
A = LED (H1, red), lights if the switch/NAMUR proximity
sensor 2 is closed/on
B = LED (H2, green), lights if the switch/NAMUR
proximity sensor 1 is closed/on
• one LED (H4, yellow) for the switching state of the
solenoid, the LED lights if the solenoid is switched on
• one LED (H3, orange) for short-circuit and line break
monitoring of the solenoid output; the LED lights if there
is neither a short-circuit nor a line break on the solenoid
output
d. Specification of the Switch/NAMUR proximity Sensor inputs:
• Supply: 8 V, 8 mA for each switch/sensor
(NAMUR - specification)
• No line break and short-circuit monitoring
• These inputs are indicated via AS-Interface data bit D2
(Switch/Sensor 2) and D3 (Switch/Sensor 1)
e. Specification of the valve output:
• output voltage: 24 - 30 VDC (depending on the voltage of
the ASI-line and the load current of the solenoid)
• power consumption of the solenoid: max. 3 W/24 V
• the solenoid is switched on via the AS-Interface data bit
D0 (D0=1: solenoid is switched on)
• line break and short-circuit monitoring:
These failures are indicated via AS-Interface data bit D1
D1 = 0: line break or short-circuit at the solenoid output
D1 = 1: no line break and no short-circuit, solenoid is
switched on.
Line break and short-circuit at the solenoid output are
only monitored when the solenoid is switched on
When shipped for field installation, the limit switch
(sensor)/solenoid assembly will be broken down into
subassemblies. The subassemblies are: (1) the switch
(sensor) operator assembly, consisting of the switches
(sensors), bracket, springs and buttons; and (2) the
enclosure (housing), probes, solenoid, control block,
block gasket, PC board and cover. Hardware items and
gasket are packaged separately. Retaining rings and
O-rings shall be assembled.
Ambient temperature range of Access unit is 0°F
minimum to 160°F maximum.
NOTE: Access M Mounted Limit Switch
(sensor)/Solenoid Kits fit only Revision R5 and later 39
Actuators. Included in the Access M Mounted Limit
Switch (sensor)/Solenoid Kits is a Rebuild/Accessory
Addition Label which is to be marked and applied to
actuator after switch has been installed.
2. The Access M mounted limit switch (sensor)/solenoid assembly
will be mounted on the right-hand end cap (when viewed from
actuator nameplate) with conduit connection on the right side of
the housing (when viewed from the cover side of the switch).
CAUTION: When actuator is installed in outdoor conditions,
water can enter the exhaust hole(s) of the control block and
then freeze. Flowserve suggests a cover be used, or mount
the actuator such that the block exhaust hole(s) will not fill
with water.
The “standard” mounting configuration of the 39 actuator to the
valve is fail closed. In this configuration, SW-1, as described in
Section 7 and in the wiring diagram, will give indication when the
actuator is in the open position (green LED is on). SW-2 gives
indication of the closed position (red LED is on). Actuator shaft
rotation will vary, depending on which fail closed mounting is
used. See Section 8 for wiring instructions.
NOTE: The rotation of the actuator shaft CW (clockwise) or CCW
(counterclockwise) is determined when viewing the actuator from
the nameplate side of the actuator, while being able to read the
label from left to right.
Fail-open mounting configuration may be obtained by either
inverting the actuator, using in-line coupling, or mounting the
actuator cross-line (sizes 10–20) or indexing the coupling
(including valve ball and stem) 90° to the actuator shaft (sizes
25–40). In these cases SW-1 and SW-2 indication will be reversed
from the above but actuator shaft rotation will vary, depending on
which fail-open mounting is used. Wiring shall be done per the
appropriate wiring diagram in Section 8 and adjustments per
Section 7.
3. Remove cover from enclosure.
CAUTION: The longer probe must be in the left-hand through-
hole (looking at the housing from the cover side). (Both probes
are the same length for the 1039 ACCESS only!)
Flow Control Division
Worcester Controls