VS-MKII Control System
Chubb Fire & Security Pty Ltd
Technical Manual
Page 62 of 63
Fault
Probable Causes
Corrective Action
1
2
History log disabled
History log on one
of the units has
been disabled.
-
1. Check display and module. Re-enable
logging
Controller unit fault
Unrecoverable
errors.
-
1. Replace module
Display unit fault
Unrecoverable
errors.
-
1. Replace display
Table 41 - Other fault indicators
Hardware Problems
Symptom
Probable Cause
Corrective Action
No Buzzer sound
1. Incorrect pin/wire
installation
2. Faulty buzzer
1. Check buzzer wires on module are RED
(+ve) in Pin 11 and BLACK (-ve) in Pin 2.
Check buzzer wires on circuit card are RED
(+ve) and BLACK (-ve)
2. Replace buzzer
Solenoid doesn’t fire on alarm.
1. Faulty solenoid
2. Discharge delay set
1. Replace solenoid
2. Check the module - Actuation output settings
for correct operation (Channel A).
Electric Manual release unit does not
activate alarm
1. Faulty switch
2. Incorrect wiring
1. Check that the switch is attached correctly to
actuator body
2. At the module end of the circuit - Check
circuit for open or short condition. Check for
approx 33 ohms of resistance when
activated.
3. Replace manual release unit
Table 42 - Hardware problems
