Cycle-Indicator Proximity Switches
Cycle-Indicator
Proximity Switches
DESCRIPTION
Graco’s Trabon Cycle Proximity Switches are used for providing a
signal to a Monitor, Controller or Programmable Logic Controller
(PLC) to indicate the number of cycles and cycle rate of a
Series-Progressive (SP) divider valve; this signal is transmitted
via a feedback loop to the Controller, providing the status of the
lubrication cycle it is programmed to monitor and record.
Graco offers three types of proximity switches for use on SeriesProgressive divider valves: Reed-Type (Reed) Proximity Switch,
Field Sensing Magnetic (FSM) Proximity Switch, and Field Sensing
Mechanical (FS
operated, single-throw switches that sense the movement of the
divider valve’s piston when it is cycling.
The Reed-Type proximity switch is available as an unattached
version (magnetically attached to piston) for oil-only applications
using MSP, MH or MGO divider valve assemblies.
The Field Sensitive Magnetic proximity switch is a dry contact,
ceramic magnet operated switch. It can be used in either grease
or oil applications and is available in three sizes compatible
with MSP, MH, MX/MXP, and MGO assemblies and its use is not
limited by valve section size. This switch is also available in an
explosion-proof design with a six-foot long cable for use in MS/
MH divider valves.
The FS
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reliability of operation when used with the very low signal power
conditions common to DC-powered PLC’s. It is a magnetically
activated proximity switch that contains a miniature snap-action
switch, activated by the attraction of its internal magnet to the
divider valve’s moving piston. The 24 volt DC-only version of this
switch is available with integral light-emitting diodes (LED) for
local verification of power and cycling activity. Similar designs
without LED’s are suitable for either AC or DC power operation;
there is also an explosion-proof version with six foot long pigtail
leads. FS
MX/MXP divider valve assemblies.
Each type of Graco Proximity Switch is available with a variety
of customer-required options to fulfill each of their application’s
particular specifications: 24 VDC or 115 VAC power, LED cycle
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) Proximity Switch. All are magnetically
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proximity switch is designed to provide a greater
proximity switches are available for MSP, MH, and
indicator lights for DC applications, and various types of electrical
connection options: Brad Harrison or Crouse Hinds cables with
either 3,4, or 5 pin connectors, 6 ft., 3-wires (for explosion-proof
versions), 1/2 ” NPT conduit (Reed Switch types only), or M12x1
Micro 4-pin connection.
A complete list of the cycle and proximity switches with their
available options appears on Page 2.
OPERATION
Proximity Switches are installed in place of an o-ring seal piston
enclosure plug in one of the working sections of a SeriesProgressive divider valve assembly. They are actuated by
movements of the lube-dispensing piston inside the section and
thereby send a signal to the Controller indicating the rate and
amount of activity of the proportioning divider as lubricant is
pumped through it.
Reed type switches utilize a pin attached magnetically to a piston
to cause the switch contacts to close. Field sensing magnetic
type of switches sense the proximity of the pistons' mass to cause
contact closure. When the piston moves in the opposite direction
away from the switch, the Reed switch is deactivated by the
withdrawal of the actuating pin and opens its contacts. Similarly,
the FSM Proximity Switch’s sensing of the piston is lost and it’s
contacts open. The two contact transitions (open-to-closed and
closed-to-open) are detected by the Monitor/Controller, which
has been programmed to interpret such a signal as one complete
cycle of the divider section, and therefore one complete cycle of
the entire SP divider valve assembly.
Depending upon the individual lubrication system’s design and
lubrication requirements, the Controller or PLC programming
then uses the feedback signals from the Proximity Switch in each
lubrication zone to start and stop the lubrication cycle periodically
as required by the system design specifications. If the Controller
or PLC does not receive the expected signal within a time period
specified in the lubrication system’s design, and programmed
into the PLC as the “Monitor Time” , the PLC can initiate various
responses as specified by the user. These responses can include
triggering a local audible and/or visual warning or sending an
electronic notification to a remote computer terminal.
O-Ring Seal Style"
(1)
Cycle-Indicator Proximity Switches
L15600
Modular
Divider Type
MGO
MGO
Proximity Switch Part No.
(Old Part No.)
UL+CSA
563495 (527-007-120) FSM 10-32 VDC 4-pin CH Mini No 200 10,000** 150,000,000+
UL+CSA
564402 (527-007-160) FSM 115 VAC 5-pin BH Mini No 200 10,000* 150,000,000+
Prox.
Switch
Type
Operating Voltage
Cable Electric
Connection
LED
Max Cycle
Rate Per Min
Max
Pressure
Rating - psi
Rated Life -
Cycle
MG0 – (570-155-001) Reed 115 VAC 1/2 in NPT cond No 60 7,500 10,000,000+
MGO
MGO
MXP/MX/MXO
MXP/MX/MXO
MXP/MX/MXO 563486 (527-006-130) FS
MXP/MX/MXO 564400 (527-006-140) FS
MXP/MX/MXO
MXP/MX/MXO
MXP/MX/MXO
MXP/MX/MXO
MSP/MH
UL+CSA
563970 (570-999-060) FSM 115 VAC 3-pin BH Mini No 200 3,500 150,000,000+
UL+CSA
Disc. (570-999-220) FSM 115 VAC 5-pin BH Mini No 200 3,500 150,000,000+
UL+CSA
564399 (527-005-190) FSM 115 VAC 5-pin BH Mini No 200 3,500 150,000,000+
UL+CSA
563476 (527-005-520) FSM 115 VAC 3-pin BH Mini No 200 3,500 150,000,000+
mech
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CSA
564401 (527-006-150) FS
NRTL
UL+CSA
557752 (527-007-110) FSM 10-32 VDC 4-pin CH Mini No 200 10,000** 150,000,000+
UL+CSA
558938 (527-007-140) FSM 115 VAC 5-pin BH Mini No 200 10,000** 150,000,000+
UL+CSA
564403 (527-007-269) FSM 10-32 VDC 4-pin Micro No 200 10,000** 150,000,000+
UL+CSA
557741 (527-003-251) FSM 115 VAC 3-pin BH Mini No 200 3,500 150,000,000+
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20-32 VDC 3-pin BH Mini Yes 150 7,500 10,000,000+
20-32 VDC 5-pin BH Mini Yes 150 7,500 10,000,000+
115 VAC or 10-32 VDC Expl Proof* No 150 7,500 10,000,000+
MSP/MH 557745 (527-003-431) FSM 115 VAC Expl Proof* No 200 3,500 150,000,000+
MSP/MH
MSP/MH
MSP/MH 563477 (527-005-670) FS
MSP/MH 563478 (527-005-690) FS
MSP/MH 563484 (527-006-050) FS
MSP/MH
UL+CSA
557746 (527-004-111) FSM 115 VAC 5-pin BH Mini No 200 3,500 150,000,000+
UL+CSA
557747 (527-004-112) FSM 10-32 VDC 4-pin CH Mini No 200 3,500 150,000,000+
20-32 VDC 5-pin BH Mini Yes 150 7,500 10,000,000+
20-32 VDC 3-pin BH Mini Yes 150 7,500 10,000,000+
115 VAC or 10-32 VDC 5-pin BH Mini No 150 7,500 10,000,000+
115 VAC or 10-32 VDC Expl Proof* No 150 7,500 10,000,000+
CSA
563485 (527-006-060) FS
NRTL
mech
mech
mech
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MSP/MH 563427 (527-001-231) Reed 115 VAC or 10-32 VDC 1/2 in NPT cond No 60 7,500 10,000,000+
MSP/MH 563501 (527-007-273) FS
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20-32 VDC 4-pin Micro Yes 150 7,500 10,000,000+
UL+CSA = Approved
CSA
= Approved for hazardous locations: Class I, Groups A, B, C & D - Division 1
NRTL
= UL and CSA approved for hazardous locations: Class I, Groups A, B, C & D - Division 1; Class II, Groups E, F & G - Division 1
*Includes 6ft, 3 conductor cable, shown on page 4
**Specially developed and recommended for stamping press applications
(1)
NOTE:
Cycle Indicator Proximity Switches shown in this bulletin are for use in divider valves having
O-ring sealed piston closure ports only.
TRABON® REED TYPE PROXIMITY SWITCHES
SPECIFICATIONS
1.56 Dia.
(39.6)
1 3 /8-16
UN-2A
Thd.
1/4-20 Soc. Set Screw
3 Places 120o Apart
Wrench Surface 0.62 (15.8)
4.50 Min. Adjustment
(114.3)
4.75 Max. Adjustment
(120.6)
Part No. – (570-155-001)
Used on MGO Divider Valves
Material Aluminum HSG, SS Magnet HSG, Buna-N O-Ring
Electrical 0.5A @ 50 VDC, 10mA @ 115 VAC, N.O.
Lubricant Oil Only
Max Cycle Rate 60 cpm
Temperature Range -20ºF to 180ºF (-29ºC to 83ºC)
Max Pressure 7500 psi
7/16-20 UNF-2A Thd.
(MSP & MH)
1/4-20 Soc. Set Screw
3 Places 120o Apart
Wrench Surface 0.62 (15.8)
3.87 Min. Adjustment
(98.4)
4.12 Max. Adjustment
(104.7)
1/2 NPT
1.12 Dia.
(28.5)
Part No. 563427 (527-001-231)
Used on MH, MSP
Divider Valves
1/2 NPT
1.12 Dia.
(28.5)
Page 2
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