External Switch/ Breaker Status Dry Contacts - Delta Modulon DPH series User Manual

4.1.4 External Switch/ Breaker Status Dry Contacts

There are four sets of external switch/ breaker status dry contacts (S1, S2, S3 and S4), which
can be used to detect the status of input, bypass, manual bypass and output switches or
breakers. Please follow the table below to connect the dry contacts to normally open (NO) or
normally closed (NC) devices.
Modulon DPH Series
Type
Dry Contact_ S1
Dry Contact_ S2
Dry Contact_ S3
Dry Contact_ S4
(Figure 4-8: External Switch/ Breaker Status Dry Contacts Design)
EXT.SWITCH
STATUS
S1 S2
S3 S4
5V
9
11
Buffer 2mA. Max
5V
13
15
2mA. Max
Buffer
5V
10
12
2mA. Max
Buffer
5V
14
16
2mA. Max
Buffer
UPS
4-6
Connection
Normally closed (NC) device
Normally closed (NC) device
Normally closed (NC) device
Normally open (NO) device
S1
S2
S3
S4