Rockwell Automation 700-RTC Type RTC Fixed Time Solid-State Timing Relays - Manual (Page 2)

Publication 700-IN004C-EN-P - October 2009
2 Bulletin 700 Type RTC Fixed Time Solid-State Timing Relays
Adding or Changing
Contact Cartridges Timers are supplied with two slots for timed contacts and two slots for
instantaneous contacts. “Dummy” cartridges are placed in any unused
cartridge slots to guard against entrance of foreign material.
The N.O. cartridges, N.C. cartridges, and dummy cartridges are removable and
interchangeable using the same cartridges for both timed and instantaneous
slots, with the exception of the N.C. cartridges in the instantaneous positions
(reference Note on page 1). Use the following procedure:
1. Disconnect all power from timer or timer panel.
2. Loosen the two front housing screws (See Figure 1.) until the housing
slides back along the screws for approximately one inch. The screws are
captive and will restrain the front housing to protect the circuit cable
that connects to the timer base.
3. Remove the N.O. or N.C. contact or the dummy cartridge by lifting it
out of the slot. A screwdriver is required to pry out the dummy
cartridge.
4. Insert the desired cartridge. The cartridges are keyed and must be
inserted with correct orientation (See Figure 1.).
5. Slide front housing back down carefully to avoid cable damage. Tighten
screws.
Contact Cartridges
Type Color Catalog Number
Normally Open Gray 700-CRT5
Normally Closed Orange 700-CRT6
Dummy Black 700-CR9
ATTENTION
The glass envelopes in the N.O. and N.C. cartridges can be
damaged if dropped or mishandled. Damaged cartridges
must be replaced.
ATTENTION
Be careful not to damage circuit table.