Installation; Commissioning Test - Danfoss VLT ISD 510 Design Manual

System Overview
NOTICE
Carry out a risk assessment to select the correct stop
category for each stop function in accordance with
EN 60204-1.
NOTICE
When designing the machine application, consider
timing and distance for coast to stop (Stop Category 2 or
STO). See EN 60204-1 for further information.
NOTICE
All signals connected to the STO must be supplied by a
SELV or PELV supply.

2.7.4 Installation

Only Danfoss cables may be used for the installation of the
servo system, however cables from other suppliers may be
used for the user connection to the STO terminals (STO 1
IN and STO 2 IN) on the SAB.
NOTICE
If the application does not require the Safe Torque Off
(STO) functionality, build a bridge by connecting +24 V
from the connector STO 1 IN: +24V to STO 1 IN: +STO,
and from STO 1 IN: –24 V to STO 1 IN: –STO. Repeat this
process for STO line 2 if used.

2.7.5 Commissioning Test

NOTICE
Perform a commissioning test after installation of the STO function, after every change to the installed function, or after
a safety fault. Perform the test for each STO line.
There are 2 ways to implement the commissioning test depending on the method used to program the PLC, however the
steps of the test are the same:
•
Using the Danfoss Library or the TwinCAT
•
Bit-wise readout of the status.
Commissioning test using libraries
Depending on the application, 1 or both of the following libraries are required to program the commissioning test:
•
Danfoss Library
- MC_ReadAxisInfo_ISD51x
-
MC_ReadStatus_ISD51x
- MC_ReadAxisError_ISD51x
- MC_Reset_ISD51x
•
®
TwinCAT Library
-
MC_ReadStatus
- MC_ReadAxisError
- MC_Reset
MG36C102
Design Guide
Safety relays that have a plus and minus switching output
signal can be directly connected to the VLT
Servo Drive ISD 510 System to activate STO (see
Illustration 2.10). Route the wires for STO 1 and STO 2
separately and not in a single multicore cable.
Illustration 2.10 Safety Relay with Plus and Minus Switching
Output
Signals with test pulses must not have test pulses of >1
ms. Longer pulses may lead to reduced availability of the
servo system.
®
Library.
Danfoss A/S © 08/2017 All rights reserved.
®
Integrated
2
SAB
STO 1 IN: + STO
STO 1 IN: – STO
STO 2 IN: + STO
STO 2 IN: – STO
17
2