Siemens SIMOCODE pro Operating Manual page 209

Cold run
If the motor feeder is in the test position, its main circuit is isolated from the network.
However, the control voltage is connected.
The "cold run" function test is performed with the feeder in this state. This means the motor
feeder is tested without a current in the main circuit.
To differentiate this function from normal operation, it must be enabled via the socket on the
function block.
Feedback stating that the motor feeder is isolated from the line voltage on the primary
current side can be implemented, for example, via an auxiliary contact of the main switch in
the motor feeder that is connected to any device input (terminal). This is then internally
connected to the "Test position feedback (TPF) - Input" plug of the function block. When
using current / voltage measuring modules, this type of auxiliary contact is entirely
unnecessary. The "TPF" function block can be activated by monitoring for undervoltage
("Voltage Monitoring" function block).
Thereafter, the contactor outputs can be set via the control stations (see Chapter Description
of functions of control stations (Page 52)), enabling the current-free status to be tested.
If current flows erroneously during test operation, the contactor outputs are switched off by
"Fault - Test Position Feedback (TPF)."
Fault message "Fault - Test Position Feedback (TPF)" and acknowledgment
Note
"Fault - Test Position Feedback (TPF)" will be generated if:
• "TPF" is activated, although current is flowing in the motor feeder
• "TPF" is activated and current is flowing in the motor feeder.
Acknowledge with "Reset."
Settings
Table 4- 71 Test Position Feedback (TPF) settings
Test Position Feedback (TPF)
Input
Type
SIMOCODE pro - Parameterize
Operating Manual, 04/2017, A5E40507630002A/RS-AA/001
Activation of the "Test position feedback (TPF)" function block by any
signal (any sockets, e.g. device input)
Specification of the input logic:
NO contact (1-active) (default)
•
NC contact (0-active)
•
4.7 Standard functions
Description
Parameters
209