Industrial Generator Set Accessories

Remote Serial Annunciator III (RSA III)

Remote Serial Annunciator III (RSA III)

for Kohlerr Controllers
D Monitors the generator set equipped with one of the following
controllers:
APM402 Decision-Makerr 3000
APM603 Decision-Makerr 3500
APM802 Decision-Makerr 6000
Decision-Makerr 3+ Decision-Makerr 8000
Decision-Makerr 550 KPC 1000
D Allows monitoring of the common alarm, remote testing of the
automatic transfer switch, and monitoring of the normal/
emergency source for up to four ATS with any of the following
controllers:
Decision-Makerr MPACr 750, 1200, and 1500
MPACr 1000 and 1500
D Configuration via a personal computer (PC) software.
RSA III
D Writable surfaces (white boxes in illustrations) for user-defined
selections.
D Uses Modbusr RTU protocol.
D Controller connections:
RS-485 for serial bus network
USB port. Connect a personal computer and use Kohlerr
SiteTecht software to view events and adjust settings. *
12-/ 24-volt DC power supply
120/208 VAC power supply (available accessory)
D Meets the National Fire Protection Association Standard
NFPA 110, Level 1.
Dimensions
D Dimensions—W x H x D, mm (in.).
Surface Mounted:
203 x 203 x 83 (8.0 x 8.0 x 3.3)
Flush Mounted (Inside Wall):
203 x 203 x 76 (8.0 x 8.0 x 3.0)
RSA III with a Single ATS Control Flush mounting plate W1: 254 (10.0)
* SiteTecht software is available to Kohler authorized distributors and
dealers.
Modbusr is a registered trademark of Schneider Electric.

W W

H
H

D W1 D
Surface Mounted Flush Mounted
RSA III with Four ATS Controls

G6-139 4/19c
 System Generator Communication
Fault and Status Conditions Fault LEDs Fault Horn Ready LED Running LED Status LED
Overcrank Shutdown Red On Red Off Green
High Engine Temperature Warning * Yellow On Red Green Green
High Engine Temperature Shutdown Red On Red Off Green
Low Oil Pressure Warning * Yellow On Red Green Green
Low Oil Pressure Shutdown Red On Red Off Green
Overspeed Shutdown Red On Red Off Green
Emergency Stop * Red On Red Off Green
Low Coolant Level/Aux. Shutdown Red On Red Off Green
Low Coolant Temperature * Yellow On Red Off Green
Low Cranking Voltage Yellow On Red Off Green
Low Fuel—Level or Pressure * Yellow On Red Green or Off Green
Not-In-Auto Red On Red Green or Off Green
Common Fault Red On Green Green or Off Green
Battery Charger Fault (1) * Yellow On Red Green or Off Green
Battery Charger Fault (2) * Yellow On Green Green or Off Green
High Battery Voltage * Yellow Off Green Green or Off Green
Low Battery Voltage * Yellow Off Green Green or Off Green
User Input #1 (Warning) Yellow Off Green Green or Off Green
User Input #1 (Shutdown) Red On Green Off Green
User Input #2 (Warning) Yellow Off Green Green or Off Green
User Input #2 (Shutdown) Red On Green Off Green
User Input #3 (Warning) (1) [ Yellow Off Green Green or Off Green
User Input #3 (Shutdown) (1) [ Red On Green Off Green
User Input #4 (Warning) (1) Yellow Off Green Green or Off Green
User Input #4 (Shutdown) (1) Red On Green Off Green
User Input #5 (Warning) (1) Yellow Off Green Green or Off Green
User Input #5 (Shutdown) (1) Red On Green Off Green
EPS Supplying Load Yellow Off Green Green Green
Communications Status (Fault mode) — Off Green or Red Green or Off Red
ATS Fault (RSA III with ATS Controls only) Red On Red or Yellow Green or Off Green
Green LEDs appear as steady on when activated.
Yellow LEDs slow flash when activated except steady on with EPS supplying load and high battery voltage.
Red LEDs slow flash when activated except fast flash with loss of communication and not-in-auto.

Specifications ATS Controls (RSA III with ATS controls only)

D LED indicating lights for status, warning, and/or shutdown. D ATS position LED (normal or emergency)
D Power source with circuit protection: 12- or 24-volt DC D Power source indicator LED (normal or emergency)
D Power source with120/208 VAC, 50/60 Hz adapter (option) D ATS fault LED
D Power draw: 200 mA D Key-operated lock/unlock switch for Test feature
D Humidity range: 0% to 95% noncondensing D Test pushbutton
D Operating temperature range: - 20C to +70C
(- 4F to +158F) NFPA Requirements
D Storage temperature range: - 40C to +85C
(- 40F to +185F) D NFPA 110 compliant
D Standards: D Engine functions:
d NFPA 110, level 1 dHigh battery voltage warning *
d UL 508 recognized dHigh engine temperature shutdown
d CE directive dHigh engine temperature warning *
d NFPA 99 dLow battery voltage warning *
d ENS 61000- 4- 4 dLow coolant level/aux. shutdown
d EN6II-4-4 fast transient immunity dLow coolant temperature warning *
dLow cranking voltage
D RS-485 Modbusr isolated port @ 9.6/19.2/38.4/57.6 kbps
(default is 19.2 kbps) dLow fuel warning (level or pressure) *
dLow oil pressure shutdown
D USB device port
dLow oil pressure warning *
D NEMA 1 enclosure
dOvercrank shutdown
(1) All generator set controllers except Decision-Makerr 3+ controller. dOverspeed shutdown
(2) Decision-Makerr 3+ controller only. D General functions:
* May require optional kit or user-provided device to enable function and
LED indication.
d Audible alarm silence
[ Digital input #3 is factory-set for high battery voltage on the d Battery charger fault *
Decision-Makerr 3+ controller. d Lamp test
Modbusr is a registered trademark of Schneider Electric. d Master switch not-in-auto

G6-139 4/19c
 Fault and Status LEDs and Lamp Test Switch
Alarm Horn. Horn sounds giving a minimum 90 dB at 0.1 m Lamp Test (Switch). Switch tests all the annunciator indicator
(0.3 ft.) audible alarm when a warning or shutdown fault LEDs and horn.
condition exists except on high/low battery voltage or EPS Low Coolant Level/Aux. LED lights when engine coolant level
supplying load. is below acceptable range on radiator-mounted generator sets
Alarm Silenced. Red LED on lamp test switch lights when only. When used with a Decision-Makerr 3+ controller, the LED
alarm horn is deactivated by alarm silence switch. indicates low coolant level or an auxiliary fault shutdown.
Alarm Silence Switch. Lamp test switch quiets the alarm Requires user-supplied low coolant level switch on remote
during servicing. The horn will reactivate upon additional faults. radiator models.

ATS Fault. Red LED lights when ATS fails to transfer. Low Coolant Temperature. LED lights if optional engine block
heater malfunctions and/or engine coolant temperature is too
Battery Charger Fail. LED lights if battery charger low. Requires prealarm sender on some models.
malfunctions. Requires battery charger with alarm contact.
Low Cranking Voltage. LED lights if battery voltage drops
Battery Voltage Hi/Lo. LED flashes if battery or charging below preset level during engine cranking.
voltage drops below preset level. LED lights steady if battery
voltage exceeds preset level. Low Fuel (Level or Pressure). LED lights if fuel level in tank
approaches empty with diesel models or fuel pressure is low on
Common Fault. LED lights when a single or multiple gas models. Requires customer-supplied switch.
common faults occur.
Low Oil Pressure. Red LED lights if generator set shuts down
Communication Status. Green LED lights indicating because of insufficient oil pressure. Yellow LED lights if engine
annunciator communications functional. Red LED indicates oil pressure approaches shutdown range. Requires warning
communication fault. sender on some models.
EPS Supplying Load. LED lights when the Emergency Power Not In Auto. LED lights when the generator set controller is not
System (EPS) generator set is supplying the load (APM402, set to automatic mode.
APM603, APM802, and Decision-Makerr 550, 3000, 3500,
6000, and 8000 controllers) or when transfer switch is in the Overcrank. LED lights and cranking stops if engine does not
emergency position (Decision-Makerr 3+ controller). start in either continuous cranking or cyclic cranking modes.

Emergency Stop. LED lights and engine stops when Overspeed. LED lights if generator set shuts down because of
emergency stop is made. May require a local emergency overspeed condition.
stop switch on some Decision-Makerr 3+ controllers. System Ready. Green LED lights when generator set master
switch is in AUTO position and the system senses no faults.
Generator Running. LED lights when generator set is in
Red LED indicates system fault.
operation.
High Engine Temperature. Red LED lights if engine has shut User-Defined Digital Inputs #1- #5. Monitors five digital
auxiliary inputs (can be configured as warnings or shutdowns).
down because of high engine coolant temperature. Yellow
LED lights if engine coolant temperature approaches shutdown User-defined digital inputs are selected via the RSA III master
for local or remote (generator set or ATS). The user-defined
range. Requires warning sender on some models.
digital input can be assigned via PC using SiteTecht setup
software.

G6-139 4/19c
 KOHLER CO., Kohler, Wisconsin 53044 USA
Phone 920-457-4441, Fax 920-459-1646
For the nearest sales and service outlet in the
US and Canada, phone 1-800-544-2444
KOHLERPower.com

Accessories
- Power source adapter kit 120/208 VAC, 50/60 Hz.
- Modbusr/Ethernet converter GM41143-KP2 for serial to
Ethernet communication.
- Communication module GM32644-KA1 or GM32644-KP1 is
required with Decision-Makerr 3+ controllers.
Modbusr is a registered trademark of Schneider Electric.

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Availability is subject to change without notice. Kohler Co. reserves the

right to change the design or specifications without notice and without any
obligation or liability whatsoever. Contact your local Kohlerr generator
set distributor for availability.  2014, 2016, 2018, 2019 by Kohler Co. All rights reserved.

G6-139 4/19c