Festo CMMT-ST-C8-1C Series Manual page 33

Installation
– Supply motor coils with current
– Actuate optional holding brake of the motor
As a rule, the brakes used are holding brakes. This means the brakes are well suited to keeping the
motor at a standstill. The holding brake must be designed for the load torque to be stopped. Holding
brakes are not usually suitable for braking moving masses or loads.
• Check that the holding brake used is suitable for the application.
The servo drive controls the output for the holding brake automatically. Information about brake
control è Online help for the CMMT-ST plug-in.
Pin allocation for connecting a stepper motor:
[X6]
Tab. 32: Motor phase connection for connecting a stepper motor
Pin allocation for connecting an EC motor:
[X6]
Tab. 33: Motor phase connection for connecting an EC motor
Mating plug requirements
Identifier
Festo — CMMT-ST-C8-1C-...-S0 — 2021-04b
Pin Function Description
1 A String A
2 A/ String A/
3 B String B
4 B/ String B/
5 Br+ Brake +24 V
6 Br-/0 V Brake 0 V
Pin Function Description
1 U Phase U
2 V Phase V
3 W Phase W
4 reserved do not connect
5 Br+ Brake +24 V
6 Br-/0 V Brake 0 V
Based on Phoenix Contact FKC 2.5/6-ST-5.08
included in assortment of plugs NEKM-C-22
(enclosed with the product)
Mating plug
labelling
A
A/
B
B/
Br+
Br-
Mating plug
labelling
A
A/
B
B/
Br+
Br-
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