Gems Sensors & Controls A, AM Operating Manual
Form 180Form 180
Form 180
Form 180Form 180
Sheet P/N 7800556Sheet P/N 7800556
Sheet P/N 7800556
Sheet P/N 7800556Sheet P/N 7800556
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This bulletin should be used by experienced personnel as a guide to the installation of series A and AM Solid-State
Alternators. Selection or installation of equipment should always be accompanied by competent technical assistance.
We encourage you to contact Gems Sensors or its representative if further information is required.
SpecificationsSpecifications
Specifications
SpecificationsSpecifications
Control DesignControl Design
Control Design:
Control DesignControl Design
Series A:Series A:
Series A: Open circuit board
Series A:Series A:
Series AM:Series AM:
Series AM: Module in clear Lexan
Series AM:Series AM:
housing. Housing carries no NEMA rating.
Contact RatingsContact Ratings
Contact Ratings: 10 Amp @ 120 VAC, resistive; 10 Amp
Contact RatingsContact Ratings
@ 24 VAC, resistive. Mechanical: 5 million operations.
Electrical: Minimum 100,000 operations at rated load.
Supply VSupply V
Supply V
Supply VSupply V
50/60 Hz.
Supply CurrentSupply Current
Supply Current: 20 mA @ 120 VAC; 80 mA @ 24 VAC
Supply CurrentSupply Current
TT
emperatureemperature
T
emperature: -40° to 150° F., Ambient
TT
emperatureemperature
TT
erminalserminals
T
erminals:
TT
erminalserminals
Series A:Series A:
Series A: 1/4” spade
Series A:Series A:
Series AM:Series AM:
Series AM: #6-32 screw-type with pressure clamps
Series AM:Series AM:
ListingsListings
Listings: UL recognized; Industrial Motor Controls (508)
ListingsListings
oltageoltage
oltage:120, 24 VAC models, plus 10%, minus 15%;
oltageoltage
®
®®
Series Series
Series
Series Series
plug-in style
AA
and and
A
and
AA
and and
Installation and Operation BulletinInstallation and Operation Bulletin
Installation and Operation Bulletin
Installation and Operation BulletinInstallation and Operation Bulletin
AM Solid-State AM Solid-State
AM Solid-State
AM Solid-State AM Solid-State
InstallationInstallation
Installation
InstallationInstallation
Series A: Open Circuit BoardSeries A: Open Circuit Board
Series A: Open Circuit Board
Series A: Open Circuit BoardSeries A: Open Circuit Board
1. Drill and tap four #6-32 holes in customer-supplied backplate, using stick-on template supplied
with alternator.
2. Install alternator using four 5/8” #6-32 screws in
appropriate enclosure.
3. Wire alternator per wiring diagram, following
N.E.C. and local codes. Use appropriately sized
spade terminals.
Series AM: ModuleSeries AM: Module
Series AM: Module
Series AM: ModuleSeries AM: Module
1a) Octal Socket: Install socket in appropriate
enclosure using two #6 or #8 metal screws.
1b) DIN Mount Socket: Install socket on appropriate rail (DIN mount) in appropriate enclosure.
2. Wire socket per wiring diagram, following N.E.C.
and local codes.
3. Install alternator into socket.
AlternatorsAlternators
Alternators
AlternatorsAlternators
A - 1-C-2-A - 1-C-2-
A - 1-C-2-
A - 1-C-2-A - 1-C-2-
AMAM
AM
AMAM
XXXX
XX
XXXX
- 1-X-2- Module - 1-X-2- Module
- 1-X-2- Module
- 1-X-2- Module - 1-X-2- Module
How THow T
How T
How THow T
- Open Circuit Board - Open Circuit Board
- Open Circuit Board
- Open Circuit Board - Open Circuit Board
Power Outage TPower Outage T
Power Outage T
Power Outage TPower Outage T
Number of Loads:Number of Loads:
Number of Loads: Two
Number of Loads:Number of Loads:
Standoff Style:Standoff Style:
Standoff Style: C-Screw Mount
Standoff Style:Standoff Style:
Supply VSupply V
Supply V
Supply VSupply V
Series A Alternator:Series A Alternator:
Series A Alternator: Open Circuit Board
Series A Alternator:Series A Alternator:
Number of Loads:Number of Loads:
Number of Loads: Two
Number of Loads:Number of Loads:
Socket Style:Socket Style:
Socket Style: A=Octal, B=DIN Mount,
Socket Style:Socket Style:
M=None
Supply VSupply V
Supply V
Supply VSupply V
Series AM Alternator:Series AM Alternator:
Series AM Alternator: Module
Series AM Alternator:Series AM Alternator:
o Ordero Order
o Order
o Ordero Order
ime Delay:ime Delay:
ime Delay: 15 Seconds
ime Delay:ime Delay:
oltage:oltage:
oltage: 1-120 VAC, 3-24 VAC
oltage:oltage:
oltage:oltage:
oltage: 1-120 VAC, 3-24 VAC
oltage:oltage:
OperationOperation
Operation
OperationOperation
Single SwitchSingle Switch
Single Switch
Single SwitchSingle Switch
On initial power-up, one of the two LED’s will be lit,
indicating which load circuit is scheduled to operate
next. On closing switch, that load will be activated.
On opening switch, that load will de-energize and the
second LED will be lit, indicating that the second load
is scheduled to operate on the next closing of the
switch.
Dual SwitchDual Switch
Dual Switch
Dual SwitchDual Switch
On closing switch #1, the lead load will activate. If
this load cannot satisfy demand, switch #2 (located
at another level or pressure) will close; activating the
lag load. Both loads will now be activated. Both will
remain activated until switch #2 opens (de-activating
the lag load). Once both switches #1 and #2 open,
the system will return to normal alternation.
device does not provide a latching function.device does not provide a latching function.
device does not provide a latching function.
device does not provide a latching function.device does not provide a latching function.
Power Outage TPower Outage T
Power Outage T
Power Outage TPower Outage T
If system has experienced a power outage and both
lead and lag switches have been activated; on return
of power, an optional time delay will prevent both
loads from starting at the same time. A 15-second
delay will occur between load starts.
ime Delayime Delay
ime Delay
ime Delayime Delay
ThisThis
This
ThisThis
Dimensional DiagramsDimensional Diagrams
Dimensional Diagrams
Dimensional DiagramsDimensional Diagrams
Series AMSeries AM
Series AM
Series AMSeries AM
2-3/8”
2-5/16”
1-5/32”
2-3/4”
2.0”
3-1/2”
5/8”
1-11/16”
Use copper (60°/70° C) wire only. Torque to 20 inch pounds.
WW
iring Diagramsiring Diagrams
W
iring Diagrams
WW
iring Diagramsiring Diagrams
11/64”
Dia.
3-1/2”
1/4”
3”
à
à
1/4”
Series ASeries A
Series A
Series ASeries A
3-1/2”
à
POS-1 POS-2
SW-1
3”
L1 L2
Load-1 Load-2
SW-2
à
SW-1
SW-2
Series AMSeries AM
Series AM
Series AMSeries AM
L1 L2
Load-2
Load-1
Series ASeries A
Series A
Series ASeries A
L1 L2
L1L1
L1
L1L1
L2L2
L2
L2L2
SW2
SW1
SW-1SW-1
SW-1
SW-1SW-1
SW-2SW-2
SW-2
SW-2SW-2
NoteNote
Note
NoteNote
Load-1Load-1
Load-1
Load-1Load-1
Load-2Load-2
Load-2
Load-2Load-2
For ease of wiring, L1 and L2 each have two tabs
Load-2
Load-1
Gems Sensors Inc.
One Cowles Road
Plainville, CT 06062-1198
Tel: 860-793-4579
Fax: 860-793-4580
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