Power Supply - Omron STI CM Series Operating Instructions Manual

CM-S41 CONNECTIONS

POWER SUPPLY:

24Vac/dc ; 110Vac or 230Vac
POWER SUPPLY FUSING:
Internal resetable fuse with 2 second delay after fault removal.
INDICATION:
RED - Power On, GREEN - Run, YELLOW - Guard Status,
GREEN - Guard Selected status.
GUARD SELECTION:
See CM-S41 switch table.
RE-SET & MONITORING:
The X1, X2 circuit is for reset buttons and/or monitoring
external contactors.
Manual Reset: (see table) A normally open momentary push button
should be placed across X1 & X2. The push button must be pressed
and released as it is monitored for short circuit faults.
Automatic Reset: Link X1, X2 and the system will reset when all
active guards are closed.
Monitor External Contactors: (K1 & K2) Place a normally closed
contact off each contactor in series with X1 & X2 (with or without a
reset button as required) If either K1 or K2 welds during operation, the
other contactor will operate correctly and on the next demand on the
safety system the X1 X2 circuit will prevent a restart. Use PGC relays
for K1 & K2 if monitoring required.
CONTROL CONTACTS: Two sets of positively guided N/O safety contacts on terminals, 13,14; and 23,24 (rating 4 Amps).
One auxiliary N/C contact, (31-32). External fusing is recommended.
EMERGENCY STOP MONITORING: Dual channel emergency stop buttons and/or mechanical safety switches can be
monitored using the S13/S14 & S23/S24 circuits. If this feature is not used link terminals S13 to S14 and S23 to S24.
OPERATION: When power is applied to the control module, the RED 'Power Led' will illuminate. The GREEN 'De-select'
indicators will show how many guard switch inputs are activated. NOTE: The number of inputs selected must match the
number of guard switches, more or less and the control unit will not operate. The YELLOW 'Guard status' indicators will be
illuminated if the guard is closed or be permanently on if the guard is de-selected.
If all the monitored machine guards are closed, the EMERGENCY STOP buttons (when used) are re-set and the RE-SET
button is pressed and released (Manual Re-set Option), the control relays will energize closing the normally open safety
contacts on terminals 13,14 / 23,24 and the normally closed auxiliary contact 31 & 32 will open. The GREEN Run LED will
illuminate. If set to automatic re-set ( I.e. link in X1 & X2) the control relays will energize when all active guards are closed and
the emergency stop button(s) are re-set. Faults on the safety switch cables, either open or short circuit will be detected
immediately causing the control relays to de-energize.
CM-S41 GUARD SELECTION SWITCH & INDICATION
Guard De-select Channel
Indication Indicator Selector
(Yellow) (Green)
= LED off = GREEN LED on
= YELLOW LED on
Switch
1 Gate Operation—Yellow LED No. 1 will
illuminate when gate switch 1 is closed.
All other Yellow gate indicators will remain
illuminated. No green LED's illuminated.
2 Gate Operation—Yellow LED's 1 & 2 will
illuminate when corresponding gate switch is
closed. All other Yellow gate indicators will remain
illuminated. Top green LED illuminated.
3 Gate Operation—Yellow LED's 1,2 &3 will
illuminate when corresponding gate switch is
closed. All other Yellow gate indicators will remain
illuminated. Top two green LED's illuminated
4 Gate Operation—Yellow LED's 1,2,3 & 4 will
illuminate when corresponding gate switch is
closed. All three Green LED's illuminated
= LED on when activated by guard closing
L (+ve)
MECHANICAL
SAFETY
SWITCHES
or
EMERGENCY
STOP
N (-ve)
Operation
GS1 GS2
A1 S13 S23 X1 BL DR BL DR 31 13 23
GATE 1 GATE 2
1
POWER
DE-SELECT
GATE 2
RUN 2
3 GATE 3
4
GATE 4
GATE 3 GATE 4
A2 S14 S24 X2 BL DR BL DR 32 14 24
GS3 GS4
K1
CM-S41 RESET AND MONITORING
SWITCH
Reset
Switch Operation
Position
Automatic Reset
Link required between
terminal X1 & X2. ISIS-4 will
reset when all active guards
are closed.
Manual / Monitored Reset
Requires a reset button in
the X1—X2 connection. The
system will reset when all
guards are closed and the
re-set button is pressed and
released. The reset button is
monitored for faults.
K1
K2
MANUAL
RE-SET
K1
K2
K2