Siemens S120 configurationmanual Thermal motor protection, Electrical shock hazard

			Motor components of the built-in motor and options
				3.2 Thermal motor protection
Table 3- 3	Technical data of the KTY 84 PTC thermistor
Name		Description
Type		KTY 84
Transfer range		- 40 °C ... + 300 °C
Resistance when cold (20 °C)		approx. 580 Ω
Resistance when hot (100 °C)		approx. 1000 Ω
Connection		Connect signal cable with connector to SME12x module.
Application		Temperature monitoring to determine the motor utilization.
Temperature characteristic
			
		5HVLVWDQFH˖	
			
			
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				7HPSHUDWXUHr&

DANGER

Electrical shock hazard!

To fulfill the requirements of electrical separation in accordance with EN 61800-5-1, it is not enough to connect the signal cable (cores ws and br) to the SMC20 Sensor Module. The temperature monitoring circuits must be connected to the drive control via the SME12x module.

NOTICE

When connecting temperature sensors with open cable ends, please pay attention to how the core colors are assigned (described in the section dealing with connections).

1FW6 Built-in torque motors	47
Configuration Manual, 05/2009, 6SN1197-0AE00-0BP3