CAT LEHE4651-04 Switch User Manual


 
AUTOMATIC TRANSFER SWITCH
LEHE4651-04
4
STANDARD FEATURES (MSTD PACKAGE)
Feature Function
6/P Momentary Test Switch
J2E/J2N Adj. over/under freq (S1 and S2)
A3 Aux Contact (S2 position)
L1/L2 Source Position LEDs
A4 Aux Contact (S1 position)
L3/L4 Source Available LEDs
Calibrate Volt. and Freq. calibration
LN/P Center-Off Position LCD*
CDT Load/No-Load Exerciser
P1 Source 2 Start Time Delay
DS Auto/Inhibit Switch (> 600A)
R50 In-Phase Monitor
DT Time Delay – Neutral to S1*
S13/P Transfer Commit
DW Time Delay – Neutral to S2*
T Source 1 Stable Time Delay
E Engine Start Contact
U Source 2 Stop Time Delay
EL/P Log of last 16 events and
System Data
VI Voltage Imbalance
K/P S1 and S2 Freq. Indication
W S2 Stable Time Delay
YEN Bypass T and W Time Delays
*Available with Delayed Transition switches only.
OPTIONAL PACKAGES
Exerciser (MEXE) Package, includes:
STDS Functions
A1/A1E – S1/S2 Failure aux contact
A3/A4 – One additional contact each
CDP – Programmable exerciser
Q2 – Remote Peak Shave/Load Test
R16 – Phase Rotation Sensing
Controls (MCON) Package, includes:
EXES Functions
Q3 – Remote Inhibit transfer to Emergency
Q7 – Inhibit Transfer to Normal
T3/W3 – Elevator Pre-Signal Aux Contacts
UMD – Universal Motor Load Disconnect
Sensing (MSEN) Package, includes:
EXES Functions
Normal Source Over voltage sensing (3 phase)
Q7 – Inhibit Transfer to Normal
S12P – Auto/Manual Selector Switch
Special (MSPE) Package, includes:
CONS Functions
SENS Functions
S5P – Manual transfer to Normal Switch
(Replaces S12P)
Switchgear (MPSG) Package, includes:
SPES Functions
Additional set of A3/A4 Contacts
R15 – Load Shed to “Dead Normal” or
R15D – Load Shed to Neutral Position*
S12/P – Auto-Manual Selector Switch
Screenshot of ATS operating parameters on Cat
Switchgear HMI.
Combined with the optional Modbus
Communication Card, the PSGS package allows
for integration with Cat Switchgear. This feature
allows ATS operating parameters to be displayed
on the PowerLynx
®
3000 HMI as well as on the
optional Remote Monitoring Software. Supply of
this feature set affords real-time monitoring of the
ATS as well as direct control over the following
parameters from the Switchgear HMI:
Timer Settings
Pickup/Dropout settings
Testing Functions
Alarm functions
Manual operation