Details Of Error Codes; Service Engineer Call Errors (T**) - Riso MZ870 Technical Manual

2) Details of error codes

1. Service engineer call errors (T**)

Error type T01 [Main motor lock] (Drum No.1)
T01-***
!!System Error!!
Panel display
Press Reset Key
If Recovery has Failed, Call Service
Error reset
Press the Reset key.
method
Error point
Main motor lock [1] detected.
520
The main motor FG sensor count reduced to 50% from the set speed.
521
The position B sensor does not change status within 2910 pulses while the main motor is ON.
523
Main motor lock [2] detected. (The main motor lock detected by DSP)
537
The print drum fails to stop at position B.
538
The print drum is not locked during operations.
T02 [Elevator motor lock]
Error type
T02-***
!!System Error!!
Panel display
Press Reset Key
If Recovery has Failed, Call Service
Error reset
Press the Reset key or switch power OFF, then ON.
method
Error point
The elevator upper-limit position detection and the elevator lower-limit detection are switches ON
400
simultaneously.
Elevator motor overload detected.
401
The elevator motor overcurrent port was activated 5 consecutive times (polling at 10-msec intervals).
The elevator lower-limit sensor does not switch OFF within 2 seconds after the elevator motor applies a
404
lifting force from the elevator lower-limit position.
The elevator upper-limit sensor does not switch ON within 12 seconds after the elevator motor applies a
405
lifting force.
The elevator upper-limit sensor does not switch OFF within 2 seconds after the elevator motor applies a
406
lowering force from the elevator upper-limit position.
The elevator lower-limit sensor does not switch ON within 12 seconds after the elevator motor applies a
407
lowering force.
408
The elevator upper-limit sensor remained OFF for more than 2 seconds during elevator servo action.
Error detecting condition
Error detecting condition
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