Parameters/address space
7.7 Assigning fail-safe motor starter parameters
Motor starter (3RK1308‑0**00‑0CP0)
Equipment Manual, 11/2019, A5E34821005002A/RS-AC/003
149
7.7
Assigning fail-safe motor starter parameters
7.7.1
Explanation of safety-related parameters
Ex motor
The motor starter can switch and protect loads in an EX protection zone
(see Ex motor application (Page 101)).
Response to safety-related tripping
The motor starter can send a warning to the CPU if tripping has been triggered through the
fail-safe input (see Response to safety-related tripping (Page 100)).
7.7.2
Setting safety-related parameters
Fail-safe motor starters possess the following safety-related parameters:
●
Ex motor
●
Rated operational current
●
Trip class
Response to modified safety-related parameters
If modified safety-related parameters are received during run-up, the parameters are
displayed. Confirm the modified parameters by pressing the Reset button twice before
continuing work.
If modified safety-related parameters are received after run-up has been completed, the
motor starter responds as follows depending on its status:
●
Motor OFF in automatic mode
The motor starter accepts the new parameters. The parameters are indicated by the
LEDs' flashing sequence. To activate the parameters, confirm them with the blue button.
The motor cannot be switched on before the parameters are activated.
●
Motor ON in automatic mode and in manual local mode
The motor starter rejects the parameters. The "Parameter changes not allowed in motor
ON state" message is issued. As communication is not secure, the motor starter does not
respond to the modified parameters. Depending on the parameterization, entries in data
set "DS92" or diagnostic interrupts are generated. The entries in data set "DS92" are
deleted as soon as the modified parameters are active.