Instruction manual

Bulletin 700-HNC
Plug-in Timing Relays
9-92
www.ab.com/catalogs Preferred availability cat. nos. are b
bold
.
Publication A117-CA001A-EN-P
Trigger Signal Examples/ Timing Charts
0
1
2
3
4
5
6
7
8
9
10
11
12
13
Nomenclature
Timing Charts
Mode A — ON-Delay
a. Needs continuous input power applied.
b. Timing is initiated by the leading edge of the start signal.
c. Contacts change state after timing is complete.
d. Additional start signals during timing don't reset timing or contacts.
e. When the input power is removed contacts return to shelf state.
Signal Specifications
Circuit Impedance
Circuit impedance can be used to calculate the maximum wiring distance from the signal switch to the timing relay, for example.
Permissible signal-ON impedance: 1 kΩ max.
Permissible signal-OFF impedance: 100 kΩ min.
Power-OFF Reset Min. power-off time: 0.1 s, Reset Voltage: 10% max. of rated voltage
Signal Duration Min. pulse width: 0.05 s
Signal Options
700-HR52 700-HRT6 700-HRV5 700-HRQR
Start X X X NA
Reset X X NA X
Gate X X NA NA
Mode B — Repeat Cycle, Off Start
a. Need continuous input power applied.
b. Timing is initiated by the leading edge of the start signal. Additional start signals during timing do not reset timing or contacts.
c. For the first time period the contacts change state. When that time period is complete contacts return to the shelf state for the same time
period (time on = time off).
d. This cycle repeats itself until input power is removed or reset signal is applied. When the input power is removed or reset signal is applied
contacts return to the shelf state.
Power
T
Power LED
Start
Output (N.C.)
Output (N.O.)
T
Power
Start
Output
Basic Operation
Power
T
Start
T
T
Power LED
Output (N.C.)
Output (N.O.)
Power
T
Start
T
T
Output
Basic Operation
Basic Operation
Power
Start
Output
T
T
T
Power
Start
Output (N.C.)
Output (N.O.)
Power LED
T
T
T
a. Need continuous input power applied.
b. Timing is initiated by the leading edge of the start signal. Additional start signals during timing do not reset timing or contacts.
c. For the first time period the contacts remain in their shelf state. When that time period is complete contacts change state for the same time
period (time on = time off).
d. This cycle repeats itself until input power is removed or reset signal is applied. When the input power is removed or reset signal is applied
contacts return to the shelf state.