Instruction manual

Bulletin 700-HNC
Plug-in Timing Relays
9-94
www.ab.com/catalogs Preferred availability cat. nos. are b
bold
.
Publication A117-CA001A-EN-P
Timing Charts
0
1
2
3
4
5
6
7
8
9
10
11
12
13
Mode J — Delayed One-Shot (Trigger=Power On)
a. Need continuous input power applied.
b. No start signal applied.
c. Timing is initiated when input power is applied.
c. Contacts change state after the timing for a fixed time of 1s +/-0.5s
d. At the end of the 1 sec period the contacts return to the shelf state.
e. When the input power is removed contacts return to the shelf state.
Basic Operation
T
Power
Power LED
Output (N.O.)
1s ±0.5s
Output (N.C.)
T
Power
Power LED
Output (N.O.)
1s ±0.5s
Mode Star-Delta
a. Need continuous input power applied.
b. No start signal required. Timing is initiated when input power is applied.
c. Star ouput contact changes state when input power is applied.
d. After timing is complete star output contact returns to the shelf state then both the star & delta contacts remain in shelf states until transfer
time setting is complete.
e. Delta output contact changes state after transfer time is complete.
f. Instantaneous contact changes state when input power is applied.
g. All contacts return to the shelf state when input power is removed.
Power
t
1
Output (N.O.)
t
2
Output 8-5, LED
Output 8-6, LED
Output (N.C.)
Power
t
1
Instantaneous Output
t
2
Output 8-5, LED
Output 8-6, LED
Basic Operation
Mode True Off-Delay (Trigger=Power Off)
a. Continuous input power is NOT required.
b. No start signal applied.
c. Contacts change state immediately when input power is applied.
d. Timing starts when input power is removed.
e. At the end of the time period contacts return to the shelf state.
f. Relay timing is reset when input power is reapplied while the relay is timing. Contacts remain in energized state.
Basic Operation
T
Power
Relay On LED
Output (N.O.)
t
t<T
T
Output (N.C.)
T
Power
Relay On LED
Output