HAT880 SERIES DUAL POWER BYPASS CONTROLLER USER MANUAL
HAT880 Series Dual Power Bypass Controller 2019-07-11 Version1.1 Page 30 of 49
9.3
DIGITAL INPUT/OUTPUT FUNCTION DESCRIPTION
9.3.1
INPUT PORTS FUNCTION
Table 17 - Input Port Function Description
No.
Item
Description
0
Not Used
Invalid
1
Forced Open
No matter the genset is in manual mode or auto mode, when the input
is active, this will force the breaker to transfer the ATS to OFF
position. “No Breaking” ATS is unavailable.
2
Remote StartOnLoad
Genset start output: when Mains is normal, gen breaker closes.
3
Remote StartOffLoad
Genset start output: when Mains is abnormal, mains breaker closes.
4
Lamp Test
All indicators on the panel are light on; LCD backlight is on; LCD is
dark.
5
Gen1 Fault Input
In cycle start, if the input is active, S1 Gens start will be inhibited.
6
Gen2 Fault Input
In cycle start, if the input is active, S2 Gens start will be inhibited.
7
Start Inhibit Input
Inhibit genset start signal output; in auto mode, after stop delay, it will
disconnect genset start signal output; in manual mode, if genset has
started, then it needs to stop the genset manually; when it is stopped,
start is inactive.
8
Breaker Trip Input
Trip failure input
9
S1 Close Inhibit
In manual mode, S1 manual close is inhibited; if breaker is already
closed, users should open it manually. In auto mode, if breaker is
already closed, then close relay will deactivated or S2 take load.
10
S2 Close Inhibit
In manual mode, S2 manual close is inhibited; if breaker is already
closed, users should open it manually. In auto mode, if breaker is
already closed, then close relay will deactivated or S1 take load.
11
QS1 Breaker PF Input When the S1 PF input is active, S1 close relay will be activated.
12
QS2 Breaker PF Input When the S2 PF input is active, S2 close relay will be activated.
13
Reserved
14
Reserved
15
Alarm Reset
Reset the current alarm.
16
Alarm Mute
Silence the audible alarm.
17
NEL Trip Key
Control the NEL off load manually. Self-reset button is recommended.
18
NEL Return Key
Control the NEL on load again manually. Self-reset button is
recommended.
19
S1 Master Input
Set S1 master use compulsively.
20
S2 Master Input
Set S2 master use compulsively.
21
Forced Manual Mode
Set the controller in Manual mode compulsively.
22
Forced Auto Mode
Set the controller in Auto mode compulsively.
23
Panel Lock
Panel button operation is inhibited (Except Up, Down, Confirm,
Return, Reset and Mute keys)
24
Sync Transfer Inhibit
When it is active, sync transfer function is inactive. (HAT880S)
25
Scheduler Inhibit
Schedule Start and Schedule Not Start function are deactivated.
26
Simulate S1 OK
Simulate S1 voltage is normal; the S1 voltage abnormal delay is
deactivated.
