Rockwell Automation 700-RTC Type RTC Fixed Time Solid-State Timing Relays - Manual (Page 3)

Publication 700-IN004C-EN-P - October 2009
Bulletin 700 Type RTC Fixed Time Solid-State Timing Relays 3
Adding or Changing
Contact Cartridges
(continued) Figure 1. Removing and Orientation of Cartridges
Operation Table 1 outlines timer operation in both the on-delay and off-delay modes.
The red LED indicator on the front housing of the timer gives visual
indication of timing, timed out, and reset or stable timer conditions. At certain
settings, there may be a slight delay in the LED operation. The timing
sequence is not affected by this delay.
Table 1 Timer Operation
Note: When the timer is energized or times out in the on-delay mode, an
N.O. contact may close before an N.C. contact opens; this can occur because
of inherent operating characteristics. Similarly, when the timer is de-energized
or times out in the off-delay mode, an N.C. contact may close before an N.O.
opens. Assured contact overlap or non-overlap cannot be provided in the same
device.
Orientation of cartridges
Method of removing cartridge
Projection for Keying
Insert cartridge with this end at top of timer
Operating
Mode
Power
(Terminals
L1-L2)
Voltage
(Applied to
Initiate
Terminal P)
Timer Status Red LED
Indicator
Contact Cartridge Statue
Instantaneous Timed
N.O N.C N.O N.C
On-delay On No Reset Off Open Closed Open Closed
Yes Timing Flashing Closed Open Open Closed
Yes Timed Out On Closed Open Closed Open
Off No Stable Off Open Closed Open Closed
Yes Stable Off Closed Open Open Closed
Off-delay On Yes Reset On Closed Open Closed Open
No Timing Flashing Open Closed Closed Open
No Timed Out Off Open Closed Open Closed
Off No Stable Off Open Closed Open Closed
Yes Stable Off Closed Open Open Closed