Chapter 1 Product Information
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1.3.1 Working States
Table 1-3 States of the MCTC-PES-E1
State
Description
Startup
The system is powered on and then starts to run properly. In the startup
process, the system completes self-check and all relays are in the OFF state.
Setting
You can modify parameters and reset faults using the external operation panel.
This mode is active only when the system is in the stop state. When the system
is running, you can change nothing using the operation panel.
Stop
The system is not powered on and all relays are in the OFF state.
Fault
The system itself has abnormality, such as self-check failure. In such state, all
relays are cut off. You need to power on the system again.
Normal
All functions are normal during running.
Inspection
The system enters the inspection state after the inspection signal becomes
active. In such state, the step loss detection function, motor braking detection
function and handrail speed detection function are disabled, while the other
functions are available.
Manual
reset
The system enters the manual reset state after the manual reset signal
becomes active. In such state, all securitiy functions are disabled and all relay
outputs are in the OFF state.
1.3.2 Description of Security Functions
The following table describes the security functions provided by the MCTC-PES-E1.
Table 1-4 Description of security functions
No.
Security Function
Description
1
Over-speed protection 1
Check the speed and acts before the speed exceeds
1.2 times of nominal speed.
2
Over-speed protection 2
Check the speed and act before the speed exceeds 1.4
times of nominal speed.
3
Unintentional reversal
protection
Check the unintentional reversal running.
4
Brake monitoring protection
Check the action of the auxiliary brake.
5
Step or pallet loss protection
Check whether the step or pallet is lost.
6
Brake monitoring protection
Check whether the main brake is released.
7
Handrail speed deviation
protection
Check the deviation between the handrail speed and
the actual step or pallet speed. If the speed deviation
is greater than -15% and continues for 15s, the system
performs protection.
8
Braking-to-stop distance
detection and alarm
Check the braking-to-stop distance. If the distance
exceeds 1.2 times of the allowable maximum value,
the system performs protection.
9
Floor plate detection switch
Check whether the floor plate is opened or removed.
