21
1
Feature comparison ZTX controls (DIP)
Lamp
test
l
ON
Off
load
test
ll
ON
Auto
Alarm reset
On
load
test
Bypass
time
delay
Dropout ∆U / ∆f
Manual
retransfer
Generator
stop delay
4 min
30 s
∆U 5% / ∆f 5%
∆U 10% / ∆f 5%
∆U 15% / ∆f 10%
∆U 20% / ∆f 10%
0
1
2
3
4
5
10
15
20
30
S1 Failure
delay
[s]
S1 Return
delay
[min]
On
Off
Auto
config
Start
Ok
Priority
No priority
Source 1
In-phase
monitor
Off
On
AUTO
!
S1 S2
LOAD
l
ll
Field-mount accessories
Auxiliary contacts for position indication Yes
Digital input/output modules No
12-24 Vdc aux supply module for controller No
Communication modules No
For applications
Mains
1)
- Mains Yes
Mains - Generator
2)
Yes
1
Mains may also be referred to as Utility or Transformer.
2
Contact ABB for applications with smaller than 20 kVA gensets.
—
Table 2.2 ATS features not limited to what is in the table above
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