IDEC Timers Operation Diagram
Timing Diagrams Overview
Guide to Reading Timing Function Diagrams
Timers
Timing Diagrams Overview
Power
Applied
Timer Power
Switches & Pilot LightsDisplay LightsRelays & SocketsTimersTerminal Blocks
Input Signal
NO Contact
NC Contact
Start Input
Terminals Shorted
Set Time
Start Input
Terminals Opened
Power
Removed
NO Contact Closes
NC Contact Opens
Timer Begins Counting
Timing Function Diagrams Overview
ON-Delay 1 (power start)
When voltage is applied to the coil, the relay contacts remain in the off state
and the set time begins. When the set time has elapsed, the relay contacts
transfer to the on state. The contacts remain in the on state until the timer is
reset. The timer is reset by removing the coil voltage. Applicable models: RTEP(B)1, GT3A-1, -2, -3, GT3D-1, -2, -3, -4, and GE1A.
Power
Output
T
Type No. GT3A-1, -2, -3 GT3D-1, -2, -3, -4 RTE-*1
Mode A 1-A A
See Page 805 813 798
Type No. GE1A GT5P GT5Y
See Page 844 813 853
Interval 1 (power start)
When voltage is applied to the coil, the relay contacts transfer immediately to
the on state and the set time begins. When the set time has elapsed, the relay
contacts transfer to the off state. The contacts remain in the off state until the
timer is reset. The timer is reset by removing the coil voltage. Applicable models:
RTE-P(B)1, GT3A-1, -2, -3, and GT3D-1, -2, -3, -4.
1. If power is disconnected during actual timing, most electronic timers reset to the
preset time, ready for the re-application of supply voltage
(except for GT3F “true OFF Delay”).
2. NO = Normally open.
3. NC = Normally closed.
ON-Delay 2 (signal start)
Voltage is applied to the coil at all times. When a start input is supplied, the
relay contacts remain in the off state and the set time begins. When the set
time has elapsed, the relay contacts transfer to the on state. The contacts
remain in the on state until the timer is reset. The timer is reset by applying a
reset input or by removing the coil voltage. Applicable models: GT3A-4, GT3D-4
and RTE-P(B) 2.
Start Input
Output
T
Type No. GT3A-4 GT3D-4 RTE-*2
Mode A 2-A A
See Page 805 813 798
Interval 2 (signal start)
Voltage is applied to the coil at all times. When a start signal is supplied, the
relay contacts transfer immediately to the on state and the set time begins.
When the set time has elapsed, the relay contacts transfer to the off state. The
contacts remain in the off state until the timer is reset. The timer is reset by applying a reset input or by removing the coil voltage. Applicable models: GT3A-5
and GT3D-4.
Start Input
Power
Output
T
Type No. GT3A-1, -2, -3 GT3D-1, -2, -3, -4 RTE-*1
Mode B 1-B B
See Page 805 813 798
Circuit Breakers
794
Output
T
Type No. GT3A-5 GT3D-4
Mode A 2-E
See Page 805 813
1. T = set time, T’ = shorter than set time, Ts = one shot output time
2. For more detailed timing diagrams, see specifi cations for individual timer models.
www.idec.com
Timers
Timing Diagrams Overview
Cycle 1 (power start, OFF fi rst)
When voltage is applied to the coil, the contacts remain in the off state and the
set time begins. At the end of the set time, the contacts transfer to the on state
and remain in the on state until the set time elapses. The timer cycles between
the two states until power is removed from the coil. Removing the coil voltage
resets the timer. The set time for both the on state and the off state is the
same. Applicable models: GT3A-1, -2, -3, GT3D-1, -2, -3, -4 and RTE-P(B)1.
Power
Output
TTT
Type No. GT3A-1, -2, -3 GT3D-1, -2, -3, -4 RTE-*1
Mode C 1-C C
See Page 805 813 798
Cycle 3 (power start, ON fi rst)
When voltage is applied to the coil, the contacts immediately transfer to the on
state and the set time begins. At the end of the set time, the contacts transfer
to the off state and remain in the off state until the set time elapses. The timer
cycles between the two states until power is removed from the coil. Removing
the coil voltage resets the timer. The set time for both the off state and the
on state is the same. Applicable models: GT3A-1, -2, -3, GT3D-1, -2, -3, -4 and
RTE-P(B)1.
Cycle 2 (signal start, OFF fi rst)
Switches & Pilot Lights Display Lights Relays & Sockets Timers Terminal Blocks
Voltage is applied to the coil at all times. When a start signal is supplied, the
relay contacts remain in the off state and the set time begins. At the end of the
set time, the contacts transfer to the on state and remain in the on state until
the set time elapses. The timer cycles between the two states until the timer
is reset. The set time for both the on state and the off state are the same. The
timer is reset by application of a reset input or by removing coil voltage. Applicable models: GT3A-4, GT3D-4 and RTE-P(B) 2.
Start Input
Output
TTT
Type No. GT3A-4 GT3D-4 RTE-*2
Mode B 2-B B
See Page 805 813 798
One Shot Cycle (signal start)
Voltage is applied to the coil at all times. When a start signal is supplied, the contacts remain in the off state and the set time begins. At the end of the set time,
the contacts transfer to the on state and remain in the on state for the set time.
After the set time has elapsed, the contacts return to the off state. The contacts
remain in the off state until the timer is reset. The timer is reset by application of
a reset input or by removing coil voltage. Applicable models: GT3A-5 and GT3D-4.
Power
Output
TTT
Type No. GT3A-1, -2, -3 GT3D-1, -2, -3, -4 RTE-*1
Mode D 1-D D
See Page 805 813 798
One Shot 1 (signal start, retriggerable)
Voltage is applied to the coil at all times. When a start signal is supplied, the
contacts immediately transfer to the on state and the set time begins. If another
start signal is supplied (before set time has elapsed) the set time restarts,
as the contacts remain in the on state. Successive pulses at a frequency
greater than the set time will cause the contacts to remain in the “On state”
indefi nitely. When the set time has elapsed the contacts transfer back to the off
state. The contacts remain in the off state until the next start signal is supplied
(no reset is necessary). The timer can be reset by application of a reset input or
by removing coil voltage. Applicable models: GT3A-6 and GT3D-4.
Start Input
Output
TTT
Type No. GT3A-6 GT3D-4
Mode A 3-C
See Page 805 813
Start Input
Output
TT
Type No. GT3A-5 GT3D-4
Mode B 2-F
See Page 805 813
One Shot 2 (signal start)
Voltage is applied to the coil at all times. When a start signal is supplied, the
contacts immediately transfer to the on state and the set time begins. If another
start signal is supplied (before set time has elapsed), the set time will not be
affected. When the set time has elapsed, the contacts transfer back to the off
state. The contacts remain in the off state until the next start signal is supplied
(no reset is necessary). The timer can be reset by application of a reset input or
by removing coil voltage. Applicable models: GT3A-6, GT3D-4, and RTE-P(B)2.
Start Input
Output
TT
Type No. GT3A-6 GT3D-4 RTE-*2
Mode C 3-E F
See Page 805 813 798
1. T = set time, T’ = shorter than set time, Ts = one shot output time
2. For more detailed timing diagrams, see specifi cations for individual timer models.
Circuit Breakers
USA: 800-262-IDEC Canada: 888-317-IDEC
795
Loading...