TP-5660 11/98
16 Accessories
Hazardous voltage.
Will cause severe injury or death.
Disconnect power sources before
servicing.
Install barrier after
adjustments,
maintenance,
or
servicing.
(600 Volt and above)
DANGER
Servicing the transfer switch. Hazardous voltage can
cause severe injury or death.
Deenergize all power sources
before servicing. Open main circuit breakers of all power
sources to the transfer switch and disable all generator sets as
follows: 1) Move all generator set master controller switches
to the OFF position. 2) Disconnect power to all battery
chargers. 3) Disconnect all battery cables, negative (--) leads
first. Reconnect negative (--) leads last when reconnecting
battery cables after servicing. Follow these precautions to
prevent starting of generator sets by an automatic transfer
switch, remote start/stop switch, or engine start command
from a remote computer.
Time Delay Off Adjustment Procedure
1. Prevent the generator set, which provides the
emergency power source to the transfer switch,
from starting by moving the generator set master
switch to the OFF position; disconnecting power to
the generator engine start battery charger, if
installed; and disconnecting all generator engine
start batteries, negative (--) leads first.
2. Disconnect
BOTH
the normal and emergency
power sources by opening upstream circuit
breakers or switches to the transfer switch.
3. Open the transfer switch enclosure door.
4. Locate the appropriate relay on the interface circuit
board. See Figure 3-1.
5. Insert a screwdriver into the slot of the adjustment
screw, which is visible through the cover of the
relay, and turn the adjustment screw to the desired
time delay period. Turn clockwise to increase time,
counterclockwise to decrease time.
6. Close and lock the transfer switch enclosure door.
7. Reconnect power supplies to the transfer switch.
NOTE
When initially applying power to the transfer switch,
the engine start contacts remain closed signalling
the generator to run until the ATS’s Time Delay
Engine Cooldown (TDEC), if equipped, ends.
8. Reconnect generator engine start battery cables,
negative (--) leads last; reconnect power to the
generator engine start battery charger, if installed;
and move the generator set master switch to the
AUTO (automatic) position. The generator may
start and run for a while (see NOTE above).
9. Perform an automatic operation test to verify time
delays. See the logic controller operation and
installation manual. See List of Related Materials
in the Introduction section in this manual.
A-320687
1
2
1. K3 (TDON)
2. K4 (TDOE)
Figure 3-1. Interface Circuit Board with
Time Delay Off Relays
3.2 Other Accessories
With the exception of the Time Delay Off accessory, all
other accessories for this automatic transfer switch are
controller accessories. For controller accessory
information and procedures, refer to the appropriate
logic controller operation and installation manual. See
List of Related Materials in the Introduction section in
this manual.
Summary of Contents for ZCS series
Page 16: ...TP 5660 11 98 8 Specifications Notes...
Page 30: ...TP 5660 11 98 22 Diagrams and Drawings Notes...
Page 45: ...TP 5660 11 98 Diagrams and Drawings 37 Schematic Diagram S340 Logic 600 1200 Amp 321096 C...
Page 46: ...38 Scheduled Maintenance TP 5660 11 98 Schematic Diagram S340 Logic 1600 3000 Amp 321097 A...
Page 54: ...46 Diagrams and Drawings TP 5660 11 98 Schematic Diagram M340 Logic 600 1200 Amp 321287 C...
Page 55: ...TP 5660 11 98 Diagrams and Drawings 47 Schematic Diagram M340 Logic 1600 3000 Amp 321301 B...
