Basler Electric DECS-400 - Manual (Page 189)

9369700990 Rev R 177
Figure 112. Single DECS-400 Without PSS (Part 3 of 3)
OEL Active
(Input Buffer)
Output Relay #3
Common Limiter(s)
(Output Buffer)
Transfer to FCR on
Loss of Sensing
Enable
(Output Buffer)
Relay Output #4
Loss of Sensing
(Output Buffer)
Layer 1
Gate 01
UEL Active
(Input Buffer)
SCL Active
(Input Buffer)
V/Hz Limiter Active
(Input Buffer)
Layer 1
Gate 02
Setpoint Adjustment
High Limit
(Input Buffer)
Setpoint Adjustment
Low Limit
(Input Buffer)
Under-Frequency
Active
(Input Buffer)
u 2
u 3
u 4
u 1
x 1
MUX
u 4 u 4
Generator Overvoltage
Active
(Input Buffer)
Layer 1
Gate 05
Generator Undervoltage
Active
(Input Buffer)
Loss of Field
Active
(Input Buffer)
V/Hz Protection
Active
(Input Buffer)
Loss of Isolation Module
Active
(Input Buffer)
Layer 1
Gate 04
Failed to Build Up
Active
(Input Buffer)
EDM Open Active
(Input Buffer)
EDM Shorted Active
(Input Buffer)
Field Overtemperature
Active
(Input Buffer)
Layer 1
Gate 06
Field Overvoltage
Active
(Input Buffer)
Field Overcurrent
Active
(Input Buffer)
u 2
u 3
u 4
u 1
x 1
MUX
u 4 u 4
Layer 1
Gate 04
u 2
u 3
u 4
u 1
x 1
MUX
u 4 u 4
Relay Output #2
Common Protection
(Output Buffer)
Layer 2
Gate 02
Layer 2
Gate 03
Layer 1
Gate 03
Layer 1
Gate 04
Layer 1
Gate 03
Loss of Sensing
Active
(Input Buffer)
P0036-10
02-01-06
DECS-400 Programmable Logic