Riso RP-255, Technical Manual

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TIMING CHARTS
[ 16 - 17 ]
[Elevator Lower Operation]
Start End
ON
OFF
Max 2 s (Error: 406)
Max 12 s (Error: 407)
ON
OFF
Upper limit sensor
Lower limit sensor
Elevator motor overload
current
Paper feed tray safety
switch
Elevator motor
ON
OFF
ON
OFF
OFF
Raise
Lower
100 ms 100 ms 100 ms
(1)
(2) ON 50 times in succession (Error: 401)
20 ms 20 ms 20 ms
(3) ON twice in succession (Error: 403)
(4)
(5)
1613
When ON: Upper limit sensor: Blocked, Lower limit sensor: Blocked, Paper feed tray safety switch:
Depressed
(1) The operation ends if the lower limit sensor is ON from the start.
If the lower limit sensor is OFF, the elevator operates until the lower limit sensor goes ON.
(2) The elevator motor overload current is continually monitored at 20 ms intervals while the elevator is
operating, and error message [T02-401] is displayed if an overload current is detected 50 times in
succession.
(3) The paper feed tray safety switch is continually monitored at 100 ms intervals while the elevator is
operating, and error message [A06-403] is displayed if it is detected as OFF twice in succession.
(4) If the upper limit sensor takes more than 2 seconds to go OFF after the elevator starts, a time-out
occurs, and error message [T02-406] is displayed.
(5) If the lower limit sensor takes more than 12 seconds to go ON after the elevator starts, a time-out
occurs, and error message [T02-407] is displayed.