8–2 Test Your Clutch/Brake
Publication
65566.5.1 - October 1996
CRM Relay Test
1. Power up the system.
2. Visually and with a voltmeter, verify that:
– CRMA and CRMB relays are not energized (no ac on wire # 112A)
– outputs to all press valves do not have power
3. Reset the E-Stop circuit by pressing the Control Reset button.
4. Visually and with a voltmeter, verify that:
– CRM relays are energized (120v ac across 112A and 105L2)
– outputs to all press valves do not have power
5. Reset control power by pressing the Clutch/Brake Power Reset button.
6. With a voltmeter, verify that all press valve outputs have power.
(120v ac across 115C and 119B)
7. Press the E-Stop button.
8. Visually and with a voltmeter, verify that seal relays and CRM
relays are de-energized. (no ac across 115C and 119B)
Seal Relay Test
1. Power up the system.
2. Reset the E-Stop circuit by pressing the Control Reset button.
3. With a voltmeter, verify that:
– seal relays are not energized
– outputs to all press valves do not have power
4. Reset control power by pressing the Clutch/Brake Power Reset button.
5. Visually and with a voltmeter, verify that:
– seal relays are energized
– outputs to all press valves have power
(120v ac across 115C and 119B)
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