The Morley-IAS MI-DCMO control output module
is used with the Morley-IAS intelligent fire alarm
control panels to provide either a single alarm
circuit or a Form C relay.
The MI-DCMO can be used to operate dry
contacts for door holders, air handling unit shut
down or other similar functions. Optionally the
module can be used to supervise wiring to the
output load providing monitoring of the
external load voltage or power supply. If the
monitored voltage falls below threshold then a
fault condition will be indicated.
Each MI-DCMO uses one of the ninety-nine
possible module addresses available on a loop.
It responds to regular polling from the control
panel indicated by a pulsing LED, every
successful communication.
On command from the control panel the
MI-DCMO will disconnect the supervision and
connect the external power supply across the
load. The disconnection of the supervision
provides a positive indication to the control
panel that the relay is activated. The MI-DCMO
has a built-in isolator which may be switched out
if required.
The MI-DCMO uses a unique mechanical design
allowing each module to be mounted either in a
wall box (M200E-SMB) or on a DIN rail (using
M200E-DIN). Irrespective of the mounting
method chosen, the address switch is both visible
and accessible for selection. To help engineers in
the maintenance and fault finding process, both
the LEDs and the address switches can be viewed
without having to remove the cover of the
mounting box. The LEDs, being multi colour,
provide diagnostic information regarding the
status of the output. For ease of installation,
testing and maintenance, the field wiring
terminals are of a plug in design.
• DIN rail mounting option
• Surface mounting option
• Tri-colour LED status indication
• Built-in short circuit isolators
• Visible address selector switches
• LED status visible in 2 planes
• Plug in connectors
• Approved to GEA GEI 1-082 and CEA GEI 1-084
mechanical
Dimensions (H x W x D) 93 x 94 x 23 (mm)
Weight 110g
Operating Temperature -20 ºC to +60 ºC
Humidity 0 to 95% maximum non-condensing
electrical
Operating voltage 15 to 30 Vdc
Standby current
No comms 310μA at 24 Vdc maximum
1 comms every
5 seconds with
LED blink 510μA at 24 Vdc maximum
Terminal Wire 2.5 mm2 maximum
Relay Form C
Unsupervised 2A at 30 Vdc, resistive load.
Supervised 1.5A at 30 Vdc, resistive load.