CAT LEHE4651-04 User Manual

LEHE4651-04  

 

4

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

 (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