Load Shed (Forced Transfer To Off); Description; Connection - Kohler MPAC 1500 Manual

8.11 Load Shed
(Forced Transfer to OFF)
The load shed (forced transfer to OFF) accessory must
be factory-installed. The load shed accessory is
available only on programmed-transition transfer
switches. This accessory is not available on
bypass/isolation switches.
The load shed (forced transfer to OFF) accessory is
available on 600 Amp programmed-transition model
KSP transfer switches. The load shed accessory must
be factory-installed.

8.11.1 Description

The load shed (forced transfer to off) accessory allows
the removal of non-critical loads from the Source E
generator set. The accessory requires an external
signal (contact closure) to initiate transfer to the Off
position.
When the forced transfer to off input is activated (contact
closed), the contactor moves from Source E to the OFF
position immediately, ignoring all time delays. If the
normal source is available when the input is activated,
the ATS transfers to the Off position and then to
TB1
1. Input/output terminal strip TB1
Figure 8-29 Forced Transfer to Off Input Connection (for factory-installed load shed kits)
120 Section 8 Accessories
1
MLB Input 2
Forced Transfer to OFF
#12--24 AWG wire
0.5 Nm (4.4 in. lb.)
Source N. If Source N is not available, the ATS remains
in the Off position until the input is deactivated. When
the input is deactivated, the ATS transfers back to
Source N, if available, executing all programmed time
delays. If Source N is not available, the ATS transfers to
Source E.
The load shed (forced transfer to off) function only sheds
loads connected to Source E. The preferred source
selector switch position (if equipped) does not affect this
function.

8.11.2 Connection

The load shed function requires an external signal
(contact closure) to initiate transfer to the Off position.
Connect the external contact to input #2 (terminals 7 and
8) on connector TB1 on the main logic board. See
Figure 8-29. Use #12--24 AWG wire and tighten to
0.5 Nm (4.4 in. lb.)
Use the Input/Output setup screen to assign Main Board
Input #2 to the forced transfer to Off function. If the
external contact is connected to a different input
connection on either the main logic board or an optional
I/O module, assign the forced transfer to Off function to
that input.
Main Logic
Board
Power
Board
GM46733
TP-6714 4/10