GF Signet 9900-1BC Batch Controller System - Manual (Page 4)

4 9900-1BC Batch Controller Manual
Modules
DC Power
Rating:
5A
V
A
C
~
5A
30 VDC
׽׽
3-9900.393 Relay Module
Loop V
oltage
Relay Module
In addition to the Open Collector output in the 9900
base unit, the 9900-1BC has a Relay Module which
adds two programmable dry-contact relays. The
Open Collector output in the base unit uses the
Relay 1 setting in the menus. The Relay Module is
assigned to relays 2 and 3 in the menus.
Dry-contact relays are electromechanical switches
with a moving contact armature. They are suitable
for many general-purpose applications, AC or DC,
including AC loads up to 250 V. Install RC Filter
Kits, 3-8050.396, on relays used to switch motor or
inductive loads.
• Two SPDT dry-contact relay inputs
• User programmable 250 V, 5 A maximum resistive
loading (AC).
• Can switch line voltage (typically 120 to 240 VAC)
• Can switch DC voltage (< 30 VDC @ 5A)
• Larger voltage and current ratings than Open
Collector outputs (30 VDC, 50 mA maximum)
Batch Module
Convert a 9900 Transmitter (Generation II) to a
Batch Controller by plugging in a Batch Module
(3-9900.397).
Optional Module Wiring:
• Wire an external button or keypad (customer
supplied) to stop, start or resume a batch remotely.
• Wire an external input that can inhibit a batch
from starting.
• The Indicator LEDs on the front panel of the
9900-1BC show the status of Open Collector
(relay 1) and relays 2 and 3.
• Hysteresis and time delay are adjustable for
each relay.
To remove modules:
1) Remove power from the 9900
2) Remove the Relay module
3) Loosen bottom screw of Batch module
4) Carefully grip and squeeze the tabs at the top of
the module to release
5) Pull module away from the unit
6) Do not bend the connecting pins
CAUTION:
Switching active loads (usually inductive) can cause
contact arcing suffi cient to damage the relays. The
RC Filter Kit or “snubber” (part number 3-8050.396)
is available as an accessory to reduce or eliminate
these damaging effects. Recommended for inductive
loads greater than 50 VAC (remote relays, solenoids,
pumps, etc.).