Ats1 And Ats2 System Setup - Kohler MPAC 1500 Manual

c. Connect the emergency side of ATS1 to the
load side of ATS2.
d. Connect generator set 1 to the normal side of
ATS2.
e. Connect generator set 2 to the emergency side
of ATS2.
2. Three-source systems require the following input/
output connections to control the engine start
commands for generator sets 1 and 2. Observe the
polarity of all connections shown in Figure 5-28.
Use wire sizes from #14 AWG to #20 AWG for
EBSM and I/O module connections.
a. Connect the ATS2 engine start contacts to the
engine start circuit on generator set 2 (G2).
Note: See the Installation Section for the engine
start contact locations.
contacts are labeled with a decal.
b. Connect one
programmable output to one ATS2 main logic
board programmable input as shown in
Figure 5-28. This I/O connection will be set to
Three-Source System Disable.
c. Connect one
programmable output to the engine start
connection on generator set 1 (G1). The ATS1
programmable output will be set to Source N
Start Signal.
3. Connect battery power. Use #14-28 AWG wire to
connect the generator set engine starting battery
(or batteries) to the BATT1 terminals on terminal
block TB13 on the external battery supply module
(EBSM). (Another battery(ies) can be connected
to terminals BATT2 but is not required.) Follow the
Transfer
Switch
Source Type
ATS1 Util-Gen
ATS2 Util-Gen-Gen
Figure 5-26 Transfer Switch Settings for Three-Source Systems
88 Section 5 Setup
Engine start
ATS1 main logic board
ATS2 main logic board
3 Src Engine Start
Mode
Not Required
Mode 1 or Mode 2
(See Section 5.15.1)
marking on the board for the positive (+) and
negative (--) connections. See Figure 8-14 and
Figure 8-15.
Note: If the battery connections are reversed, red
LED1 or LED2 will light. Incorrect battery
connections can damage the battery
module.
4. Set voltage selector switch SW11-1 on the battery
module (EBSM) to 12 or 24VDC.
Note: See Section 8.6 for more information on the
EBSM.
5. Assign the ATS1 programmable output connected
in step 2b. to Three-Source System Disable.
6. Assign the following inputs and outputs for the
second transfer switch.
a. Assign ATS2 main logic board programmable
input 1 to Three-Source System Disable.
b. Assign the
programmable output connected in step 2c. to
Source N Start Signal.

5.15.5 ATS1 and ATS2 System Setup

Use the System Setup Screen on each transfer switch to
set the following:
ATS1: Set the Source type to Util-Gen.
ATS2: Set the source type to Util-Gen-Gen. Set the
3 Src Engine Start Mode to Mode 1 or Mode 2 as
described in Section 5.15.1.
The transfer switch settings are summarized in
Figure 5-26.
Preferred
Source Toggle
Not Required Not Required
Enable or Disable Three Source System
See Section 5.15.2
ATS2 main logic
Inputs Outputs
Three Source System
Disable
Source N Start Signal
Disable
TP-6714
board
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